ML13037A630
| ML13037A630 | |
| Person / Time | |
|---|---|
| Site: | Surry |
| Issue date: | 12/31/2012 |
| From: | KLD Engineering, PC |
| To: | Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation |
| References | |
| 12-727 KLD TR-528, Rev 1 | |
| Download: ML13037A630 (139) | |
Text
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EvacuationTimeEstimate
Rev.1
8 TRANSITDEPENDENTANDSPECIALFACILITYEVACUATIONTIMEESTIMATES
Thissectiondetailstheanalysesappliedandtheresultsobtainedintheformofevacuationtime
estimates for transit vehicles. The demand for transit service reflects the needs of three
populationgroups:(1)residentswithnovehiclesavailable;(2)residentsofspecialfacilitiessuch
as schools, medical facilities, and correctional facilities; and (3) homebound special needs
population.
These transit vehicles mix with the general evacuation traffic that is comprised mostly of
passengercars(pcs).Thepresenceofeachtransitvehicleintheevacuatingtrafficstreamis
representedwithinthemodelingparadigmdescribedinAppendixDasequivalenttotwopcs.
Thisequivalencefactorrepresentsthelongersizeandmoresluggishoperatingcharacteristics
ofatransitvehicle,relativetothoseofapc.
Transit vehicles must be mobilized in preparation for their respective evacuation missions.
Specifically:
Busdriversmustbealerted
Theymusttraveltothebusdepot
Theymustbebriefedthereandassignedtoarouteorfacility
Theseactivitiesconsumetime.Basedondiscussionwiththeoffsiteagencies,itisestimated
thatbusmobilizationtimeswillaverageapproximately180minutesfortheschoolbusesofthe
combined James City County and Williamsburg school district, 110 minutes for York County
schoolsbuses,145minutesforschoolbusesinallothercities/countiesand180minutesfor
transitbuses,extendingfromtheAdvisorytoEvacuate,tothetimewhenbusesfirstarriveat
the facility to be evacuated. These mobilization times are increased for rain and snow/ice
conditionsby10and20minutesrespectively.
Duringthismobilizationperiod,othermobilizationactivitiesaretakingplace.Oneoftheseis
theactiontakenbyparents,neighbors,relativesandfriendstopickupchildrenfromschool
prior to the arrival of buses, so that they may join their families. Virtually all studies of
evacuations have concluded that this bonding process of uniting families is universally
prevalentduringemergenciesandshouldbeanticipatedintheplanningprocess.Thecurrent
publicinformationdisseminatedtoresidentsoftheSPSEPZindicatesthatschoolchildrenmay
beevacuatedtoreceivingschoolsatemergencyactionlevelsofAlertorhigher.Asdiscussedin
Section 2, this study assumes a fast breaking general emergency. Therefore, children are
evacuatedtoreceivingschools.Pickingupchildrenatschoolcouldaddtotrafficcongestionat
theschools,delayingthedepartureofthebusesevacuatingschoolchildren,whichmayhaveto
returninasubsequentwavetotheEPZtoevacuatethetransitdependentpopulation.This
reportprovidesestimatesofbusesundertheassumptionthatnochildrenwillbepickedupby
their parents (in accordance with NUREG/CR7002), to present an upper bound estimate of
buses required. It is assumed that children at daycare centers without dedicated
transportationresourcesarepickedupbyparentsorguardiansandthatthetimetoperform
thisactivityisincludedinthetripgenerationtimesdiscussedinSection5.
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TheprocedureforcomputingtransitdependentETEisto:
Estimatedemandfortransitservice
Estimatetimetoperformalltransitfunctions
EstimateroutetraveltimestotheEPZboundaryandtotheEvacuationAssembly
Centers(EAC)
8.1 TransitDependentPeopleDemandEstimate
The telephone survey (see Appendix F) results were used to estimate the portion of the
populationrequiringtransitservice:
Thosepersonsinhouseholdsthatdonothaveavehicleavailable.
Thosepersonsinhouseholdsthatdohavevehicle(s)thatwouldnotbeavailableat
thetimetheevacuationisadvised.
Inthelattergroup,thevehicle(s)maybeusedbyacommuter(s)whodoesnotreturn(orisnot
expectedtoreturn)hometoevacuatethehousehold.
Table81presentsestimatesoftransitdependentpeople.Note:
Estimatesofpersonsrequiringtransitvehiclesincludeschoolchildren.Forthose
evacuationscenarioswherechildrenareatschoolwhenanevacuationisordered,
separatetransportationisprovidedfortheschoolchildren.Theactualneedfor
transitvehiclesbyresidentsistherebylessthanthegivenestimates.However,
estimatesoftransitvehiclesarenotreducedwhenschoolsareinsession.
Itisreasonableandappropriatetoconsiderthatmanytransitdependentpersons
willevacuatebyridesharingwithneighbors,friendsorfamily.Forexample,nearly
80percentofthosewhoevacuatedfromMississauga,Ontariowhodidnotusetheir
owncars,sharedaridewithneighborsorfriends.Otherdocumentsreportthat
approximately70percentoftransitdependentpersonswereevacuatedviaride
sharing.Wewilladoptaconservativeestimatethat50percentoftransit
dependentpersonswillrideshare,inaccordancewithNUREG/CR7002.
Theestimatednumberofbustripsneededtoservicetransitdependentpersonsisbasedonan
estimateofaveragebusoccupancyof30personsattheconclusionofthebusrun.Transit
vehicleseatingcapacitiestypicallyequalorexceed60childrenonaverage(roughlyequivalent
to40adults).Iftransitvehicleevacueesaretwothirdsadultsandonethirdchildren,thenthe
numberofadultseatstakenby30personsis20+(2/3x10)=27.Onthisbasis,theaverage
loadfactoranticipatedis(27/40)x100=68percent.Thus,iftheactualdemandforservice
exceeds the estimates of Table 81 by 50 percent, the demand for service can still be
accommodatedbytheavailablebusseatingcapacity.
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Table 81 indicates that transportation must be provided for 3,480 people. Therefore, an
estimated116busrunsarerequiredtoservicethisdemand.However,122busesareneededin
ordertomeetthenecessarydemandinurbanareaswhileservicingallofthe9rural,lightly
populatedbusroutesoutlinedthecountyemergencyplanswithonebuseach.
Toillustratethisestimationprocedure,wecalculatethenumberofpersons,P,requiringpublic
transitorrideshare,andthenumberofbuses,B,requiredfortheSPSEPZ:
Where,
A=Percentofhouseholdswithcommuters
C=Percentofhouseholdswhowillnotawaitthereturnofacommuter
Thesecalculationsareexplainedasfollows:
Allmembers(1.50avg.)ofhouseholds(HH)withnovehicles(3.23%)willevacuateby
publictransitorrideshare.Theterm61,813(numberofhouseholds)x0.0323x
1.50,accountsforthesepeople.
ThemembersofHHwith1vehicleaway(27.27%),whoareathome,equal(1.791).
ThenumberofHHwherethecommuterwillnotreturnhomeisequalto(61,813x
0.2727x0.57x0.40),as57%ofEPZhouseholdshaveacommuter,40%ofwhich
wouldnotreturnhomeintheeventofanemergency.Thenumberofpersonswho
willevacuatebypublictransitorrideshareisequaltotheproductofthesetwo
terms.
ThemembersofHHwith2vehiclesthatareaway(50.71%),whoareathome,equal
(2.57-2).ThenumberofHHwhereneithercommuterwillreturnhomeisequalto
61,813x0.5071x(0.57x0.40)2.Thenumberofpersonswhowillevacuatebypublic
transitorrideshareisequaltotheproductofthesetwoterms(thelasttermis
squaredtorepresenttheprobabilitythatneithercommuterwillreturn).
Householdswith3ormorevehiclesareassumedtohavenoneedfortransit
vehicles.
ThetotalnumberofpersonsrequiringpublictransitisthesumofsuchpeopleinHH
withnovehicles,orwith1or2vehiclesthatareawayfromhome.
TheestimateoftransitdependentpopulationinTable81farexceedsthenumberofregistered
transitdependent persons in the EPZ as provided by thecities/counties (discussed below in
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Section8.5).ThisisconsistentwiththefindingsofNUREG/CR6953,Volume2,inthatalarge
majorityofthetransitdependentpopulationwithintheEPZsofU.S.nuclearplantsdoesnot
registerwiththeirlocalemergencyresponseagency.
TheRERPofthecitiesandcountiesstatethatifanevacuationadvisoryisissued,newsreleases
willprovidethepublicwithtelephonenumberstocallinordertogettransportationassistance.
8.2 SchoolPopulation-TransitDemand
Table 82 presents the school population and transportation requirements for the direct
evacuationofallschoolswithintheEPZforthe20112012schoolyear.Thisinformationwas
provided by the local emergency management agencies. The column in Table 82 entitled
BusesRequiredspecifiesthenumberofbusesrequiredforeachschoolunderthefollowing
setofassumptionsandestimates:
Nostudentswillbepickedupbytheirparentspriortothearrivalofthebuses.
Whilemanyhighschoolstudentscommutetoschoolusingprivateautomobiles(as
discussedinSection2.4ofNUREG/CR7002),theestimateofbusesrequiredfor
schoolevacuationdonotconsidertheuseoftheseprivatevehicles.
Buscapacity,expressedinstudentsperbus,issetto70forprimaryschoolsand50
formiddleandhighschools.
Thosestaffmemberswhodonotaccompanythestudentswillevacuateintheir
privatevehicles.
Noallowanceismadeforstudentabsenteeism,typically3percentdaily.
It is recommended that the cities/counties in the EPZ introduce procedures whereby the
schoolsarecontactedpriortothedispatchofbusesfromthedepot,toascertainthecurrent
estimate of students to be evacuated. In this way, the number of buses dispatched to the
schoolswillreflecttheactualnumberneeded.Theneedforbuseswouldbereducedbyany
high school students who have evacuated using private automobiles (if permitted by school
authorities).Thosebusesoriginallyallocatedtoevacuateschoolchildrenthatarenotneeded
due to children being picked up by their parents, can be gainfully assigned to service other
facilitiesorthosepersonswhodonothaveaccesstoprivatevehiclesortoridesharing.
Table83presentsalistofthereceivingschoolsforeachschoolintheEPZthatdoesnotrelyon
parentstoprovideforthetransportationofstudents.Studentswillbetransportedtothese
schools where they will be subsequently retrieved by their respective families. York County
schools may evacuate to either New Kent High School (NKHS) or Grafton Complex (GC)
dependingonprevailingconditions.
8.3 MedicalFacilityDemand
Table84presentsthecensusofmedicalfacilitiesintheEPZ.993peoplehavebeenidentified
aslivingin,orbeingtreatedin,thesefacilities.Thecapacityandcurrentcensusforeachfacility
were provided by the local emergency management agencies. This data also includes the
number of ambulatory, wheelchairbound and bedridden patients for a portion of these
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facilities.Theaveragedistributionofambulatory,wheelchairboundandbedriddenpatientsfor
thoseprovidedwereappliedtotheremainingfacilities.
ThetransportationrequirementsforthemedicalfacilitypopulationarealsopresentedinTable
84. The number of ambulance runs is determined by assuming that 2 patients can be
accommodated per ambulance trip; the number of wheelchair bus runs assumes 20
wheelchairspertripandthenumberofbusrunsestimatedassumes30ambulatorypatientsper
trip.
8.4 EvacuationTimeEstimatesforTransitDependentPeople
EPZbusresourcesareassignedtoevacuatingschoolchildren(ifschoolisinsessionatthetime
oftheATE)asthefirstpriorityintheeventofanemergency.Intheeventthattheallocationof
busesdispatchedfromthedepotstothevariousfacilitiesandtothebusroutesissomewhat
inefficient,orifthereisashortfallofavailabledrivers,thentheremaybeaneedforsome
busestoreturntotheEPZfromtheassemblycenteraftercompletingtheirfirstevacuationtrip,
tocompleteasecondwaveofprovidingtransportservicetoevacuees.Forthisreason,the
ETE for the transitdependent population will be calculated for both a one wave transit
evacuationandfortwowaves.Ofcourse,iftheimpactedEvacuationRegionisotherthanR03
(the entire EPZ), then there will likely be ample transit resources relative to demand in the
impactedRegionandthisdiscussionofasecondwavewouldlikelynotapply.
Whenschoolevacuationneedsaresatisfied,subsequentassignmentsofbusestoservicethe
transitdependentshouldbesensitivetotheirmobilizationtime.Clearly,thebusesshouldbe
dispatchedafterpeoplehavecompletedtheirmobilizationactivitiesandareinapositionto
boardthebuseswhentheyarriveatthepickuppoints.
Evacuation Time Estimates for transit trips were developed using both good weather and
adverseweatherconditions.Figure81presentsthechronologyofeventsrelevanttotransit
operations.TheelapsedtimeforeachactivitywillnowbediscussedwithreferencetoFigure
81.
Activity:MobilizeDrivers(ABC)
MobilizationistheelapsedtimefromtheAdvisorytoEvacuateuntilthetimethebusesarriveat
thefacilitytobeevacuated.Localemergencyplannersprovidedestimatesforlengthoftime
schoolbusdriverswouldlikelyrequiretobecontacted,totraveltothedepot,bebriefed,and
to travel to the transitdependent facilities. The responses varied by city/county from 110
minutesto180minutes,withanaverageof145minutes.Mobilizationtimeisslightlylongerin
adverseweather-10minuteslongerwhenraining,20minuteslongerwhensnowing.
Activity:BoardPassengers(CD)
Basedondiscussionswithoffsiteagencies,aloadingtimeof15minutes(20minutesforrain
and25minutesforsnow)forschoolbusesisused.
For multiple stops along a pickup route (transitdependent bus routes) estimation of travel
timemustallowforthedelayassociatedwithstoppingandstartingateachpickuppoint.The
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time,t,requiredforabustodecelerateatarate,a,expressedinft/sec/sec,fromaspeed,
v,expressedinft/sec,toastop,ist=v/a.Assumingthesameaccelerationrateandfinal
speedfollowingthestopyieldsatotaltime,T,toserviceboardingpassengers:
,
WhereB=Dwelltimetoservicepassengers.Thetotaldistance,sinfeet,travelledduringthe
deceleration and acceleration activities is: s = v2/a. If the bus had not stopped to service
passengers,buthadcontinuedtotravelatspeed,v,thenitstraveltimeoverthedistance,s,
wouldbe:s/v=v/a.Thenthetotaldelay(i.e.pickuptime,P)toservicepassengersis:
Assigningreasonableestimates:
B=50seconds:agenerousvalueforasinglepassenger,carryingpersonalitems,to
boardperstop
v=25mph=37ft/sec
a=4ft/sec/sec,amoderateaveragerate
Then,P1minuteperstop.Allowing30minutespickuptimeperbusrunimplies30stopsper
run,forgoodweather.Itisassumedthatbusaccelerationandspeedwillbelessinrain;total
loadingtimeis40minutesperbusinrain,50minutesinsnow.
Activity:TraveltoEPZBoundary(DE)
SchoolEvacuation
Transportation resources available were provided by the EPZ city/county emergency
managementagenciesandaresummarizedinTable85. Alsoincludedinthetablearethe
numberofbusesneededtoevacuateschools,medicalfacilities,transitdependentpopulation,
andhomeboundspecialneeds(discussedbelowinSection8.5).Thesenumbersindicatethere
aresufficientresourcesavailabletoevacuateeveryoneinasinglewave,withtheexceptionof
the bedridden population within the EPZ, which requires two waves of ambulance
transportation.
Thebusesservicingtheschoolsarereadytobegintheirevacuationtripsatanaverageof160
minutesaftertheadvisorytoevacuate-145minutesmobilizationtimeonaverageplus15
minutesloadingtime-ingoodweather.TheUNITESsoftwarediscussedinSection1.3was
usedtodefinebusroutesalongthemostlikelypathfromaschoolbeingevacuatedtotheEPZ
boundary, traveling toward the appropriate receiving school. This is done in UNITES by
interactivelyselectingtheseriesofnodesfromtheschooltotheEPZboundary.Eachbusroute
isgivenanidentificationnumberandiswrittentotheDYNEVIIinputstream.DYNEVcomputes
theroutelengthandoutputstheaveragespeedforeach5minuteinterval,foreachbusroute.
The specified bus routes are documented in Table 86 (refer to the maps of the linknode
analysis network in Appendix K for node locations). Data provided by DYNEV during the
appropriate timeframe depending on the mobilization and loading times (i.e., 145 to 150
minutesaftertheadvisorytoevacuateforgoodweather)wereusedtocomputetheaverage
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speedforeachroute,asfollows:
The average speed computed (using this methodology) for the buses servicing each of the
schoolsintheEPZisshowninTable87throughTable89forschoolevacuation,andinTable
811throughTable813forthetransitvehiclesevacuatingtransitdependentpersons,which
arediscussedlater.
ThetraveltimetotheEPZboundarywascomputedforeachbususingthecomputedaverage
speedandthedistancetotheEPZboundaryalongthemostlikelyrouteoutoftheEPZ.The
traveltimefromtheEPZboundarytothereceivingschoolwascomputedassuminganaverage
speedof45mph,40mph,and35mphforgoodweather,rainandsnow,respectively.Speeds
werereducedinTable87throughTable89andinTable811throughTable813to45mph
(40mphforrain-10%decrease,roundedtothenearest5mph-and35mphforsnow-20%
decrease,roundedtothenearest5mph)forthosecalculatedbusspeedswhichexceed45mph,
astheschoolbusspeedlimitfornoninterstateroadsinVirginiais45mph,orthespeedlimit,
whicheverisless.
Table 87 (good weather), Table 88 (rain) and Table 89 (snow) present the following
evacuationtimeestimates(roundeduptothenearest5minutes)forschoolsintheEPZ:(1)The
elapsedtimefromtheAdvisorytoEvacuateuntilthebusexitstheEPZ;and(2)Theelapsed
time until the bus reaches the receiving school. The evacuation time out of the EPZ can be
computed as the sum of times associated with Activities ABC, CD, and DE (For
example:180min+15+64=4:20forClaraByrdBakerElementarySchool,withgoodweather).
Theevacuationtimetothereceiverschoolisdeterminedbyaddingthetimeassociatedwith
ActivityEF(discussedbelow),tothisEPZevacuaon.EvacuationtripsoriginatingatanyYork
Countyschoolmaytakeoneoftwopathstoeitherofthetwopotentialreceivingschools.ETE
arereportedforbothpotentialtripsforallYorkCountyschoolsandaredesignatedwiththe
initialsoftherelevantreceiverschool(NKHSorGC)attheendoftheevacuatingschoolsname.
EvacuationofTransitDependentPopulation
The buses dispatched from the depots to service the transitdependent evacuees will be
scheduledsothattheyarriveattheirrespectiveroutesaftertheirpassengershavecompleted
theirmobilization.AsshowninFigure54(ResidentswithnoCommuters),approximately95
percentoftheevacueeswillcompletetheirmobilizationwhenthebuseswillbegintheirroutes,
approximately180minutesaftertheAdvisorytoEvacuate.
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Thosebusesservicingthetransitdependentevacueeswillfirsttravelalongtheirpredestinated
routes,thenproceedoutoftheEPZ.Thecity/countyemergencyplansdefinebusroutes.For
eachlocalityTable86outlinesthe43Generalpopulationbusroutesoutlinedinthecity/county
emergencyplans.Itisassumedthatresidentswillwalktoandcongregateatpredesignated
pickuplocations,andthattheycanarriveatthestopswithinthe180minutebusmobilization
time(goodweather).DetaileddescriptionsofeachbusrouteareavailableinAppendix3ofthe
RadiologicalEmergencyPreparednessPlanforeachrespectivecity/countywithintheEPZ.
As previously discussed, a pickup time of 30 minutes (good weather) is estimated for 30
individualstopstopickuppassengers,withanaverageofoneminuteofdelayassociatedwith
eachstop.Alongerpickuptimeof40minutesand50minutesareusedforrainandsnow,
respectively.
ThetraveldistancealongtherespectivepickuprouteswithintheEPZisestimatedusingGIS
software.BustraveltimeswithintheEPZarecomputedusingaveragespeedscomputedby
DYNEV,usingtheaforementionedmethodologythatwasusedforschoolevacuation.
Table 811 through Table 813 present the transitdependent population evacuation time
estimatesforeachbusroutecalculatedusingtheaboveproceduresforgoodweather,rainand
snow,respectively.
Forexample,theETEforthebusrouteservicingRoute1iscomputedas180+12+30=3:45for
goodweather(roundeduptonearest5minutes).Here,12minutesisthetimetotravel9.1
miles at 44.3 mph, the average speed output by the model for this route starting at 180
minutes.TheETEforasecondwave(discussedbelow)ispresentedintheeventthereisa
shortfallofavailablebusesorbusdrivers,aspreviouslydiscussed.
Activity:TraveltoEvacuationAssemblyCenters(EF)
ThedistancesfromtheEPZboundarytotheevacuationassemblycentersaremeasuredusing
GISsoftwarealongthemostlikelyroutefromtheEPZexitpointtotheassemblycenter.The
assembly centers are mapped in Figure 101. For a onewave evacuation, this travel time
outsidetheEPZdoesnotcontributetotheETE.Foratwowaveevacuation,theETEforbuses
must be considered separately, since it could exceed the ETE for the general population.
Assumed bus speeds of 45 mph, 40 mph, and 35 mph for good weather, rain, and snow,
respectively, will be applied for this activity for buses servicing the transitdependent
population.
Activity:PassengersLeaveBus(FG)
Abuscanemptywithin5minutes.Thedrivertakesa10minutebreak.
Activity:BusReturnstoRouteforSecondWaveEvacuation(GC)
The buses assigned to return to the EPZ to perform a second wave evacuation of transit dependentevacueeswillbethosethathavealreadyevacuatedtransitdependentpeoplewho
mobilizedmorequickly.Thefirstwaveoftransitdependentpeopledepartthebus,andthe
bus then returns to the EPZ, travels to its route and proceeds to pick up more transit dependentevacueesalongtheroute.ThetraveltimebacktotheEPZisequaltothetraveltime
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totheEAC.
ThesecondwaveETEforRoute1iscomputedasfollowsforgoodweather:
BusarrivesatEACat3:55ingoodweather(3:45toexitEPZ+10minutetraveltime
toEAC).
Busdischargespassengers(5minutes)anddrivertakesa10minuterest:15
minutes.
BusreturnstoEPZandcompletessecondroute:22minutes{equaltotraveltimeto
EAC(10minutes)+timetoreturntothebeginningofthebusroute(9.1miles@45
mph)}+12minutes(outboundroutetravel,9.1miles@45mph)=34minutes
Buscompletespickupsalongroute:30minutes.
BusexitsEPZattime3:45+0:10+0:15+0:34+0:30=5:15(roundeduptonearest
5minutes)aftertheAdvisorytoEvacuate.
The ETE for the completion of the second wave for all transitdependent bus routes are
provided in Table 811 through Table 813. The average ETE for a twowave evacuation of
transitdependentpeopleexceedstheETEforthegeneralpopulationatthe90thpercentileby
over2hours.
TherelocationoftransitdependentevacueesfromtheEACtocongregatecarecenters,ifthe
cities/countiesdecidetodoso,isnotconsideredinthisstudy.
EvacuationofMedicalFacilities
Asstatedinthecity/countyRERPs,itisexpectedthatInstitutionswillprovidetransportation
for their own individuals. Additional transportation resources may be available from the
city/county,thedetailsaboutwhichvarybycity/county.
Theevacuationofthesefacilitiesissimilartoschoolevacuationexcept:
Busesareassignedonthebasisof30patientstoallowforstafftoaccompanythe
patients.Wheelchairbusescanaccommodate20patients,andambulancescan
accommodate2patients.
Loadingtimesof1minute,5minutes,and15minutesperpatientareassumedfor
ambulatorypatients,wheelchairboundpatients,andbedriddenpatients,
respectively.
Table84indicatesthat24busruns,24wheelchairbusrunsand56ambulancerunsareneeded
toserviceallofthemedicalfacilitiesintheEPZ.AccordingtoTable85,thecities/countiescan
collectively provide 783 buses, 101 wheelchair buses, and 38 ambulances. Thus, there are
sufficient resources to evacuate the ambulatory and wheelchair bound persons from the
medical facilities in a single wave, but, unless additional ambulances are available from
neighboringcounties,atwowaveevacuationisneededforambulancesevacuatingbedridden
patients.
As in the case of the transit dependent residential population, it is estimated that bus
mobilizationtimeaverages180minutes.Speciallytrainedmedicalsupportstaff(workingtheir
regularshift)willbeonsitetoassistintheevacuationofpatients.Additionalstaff(ifneeded)
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couldbemobilizedoverthissame180minutetimeframe.
Table814throughTable816summarizetheETEformedicalfacilitieswithintheEPZforgood
weather,rain,andsnow.AveragespeedsoutputbythemodelforScenario6(Scenario7for
rainandScenario8forsnow)Region3,cappedat45mph(40mphforrainand35mphfor
snow),areusedtocomputetraveltimetoEPZboundary.ThetraveltimetotheEPZboundary
iscomputedbydividingthedistancetotheEPZboundarybytheaveragetravelspeed.TheETE
isthesumofthemobilizationtime,totalpassengerloadingtime,andtraveltimeoutofthe
EPZ.Concurrentloadingonmultiplebuses,wheelchairbuses/vans,andambulancesatcapacity
isassumedsuchthatthemaximumloadingtimesforbuses,wheelchairbusesandambulances
are30,100and30minutes,respectively.AllETEareroundedtothenearest5minutes.For
example,thecalculationofETEfortheChambrelatWilliamsburgwith46ambulatoryresidents
duringgoodweatheris:
ETE:180+30+49=259min.or4:20roundedtothenearest5minutes.
Itisassumedthatmedicalfacilitypopulationisdirectlyevacuatedtoappropriatehostmedical
facilities.Relocationofthispopulationtopermanentfacilitiesand/orpassingthroughtheEAC
beforearrivingatthehostfacilityarenotconsideredinthisanalysis.
8.5 SpecialNeedsPopulation
The city/county emergency management agencies have a registration for transitdependent
andhomeboundspecialneedspersons.Basedondataprovidedbythecounties,therearean
estimated348peoplewithintheEPZwhorequiretransportationassistancetoevacuate.Details
onthenumberofambulatory,wheelchairboundandbedriddenpeoplewerenotprovidedfor
alllocalities.Itisassumedthatthesamedistributionofambulatory(72.7%),wheelchairbound
(27%)andbedriddenpersons(0%)isapplicabletothoselocations wherespecificswerenot
reported. This results in 253 ambulatory persons, 95 wheelchairbound persons and no
bedriddenpersons.
ETEforHomeboundSpecialNeedsPersons
Table817summarizestheETEforhomeboundspecialneedspeople.Thetableiscategorized
bytypeofvehiclerequiredandthenbrokendownbyweathercondition.Thetabletakesinto
considerationthedeploymentofmultiplevehiclestoreducethenumberofstopspervehicle.
Itisconservativelyassumedthatambulatoryandwheelchairboundspecialneedshouseholds
arespaced3milesapartandbedriddenhouseholdsarespaced5milesapart.Vanandbus
speedsapproximate20mphbetweenhouseholdsandambulancespeedsapproximate30mph
ingoodweather(10%slowerinrain,20%slowerinsnow).Mobilizationtimesof180minutes
wereused(190minutesforrain,and200minutesforsnow).ThelastHHisassumedtobe5
milesfromtheEPZboundary,andthenetworkwideaveragespeed,cappedat45mph(40mph
for rain and 35 mph for snow), after the last pickup is used to compute travel time. ETE is
computedbysummingmobilizationtime,loadingtimeatfirsthousehold,traveltosubsequent
households,loadingtimeatsubsequenthouseholds,andtraveltimetoEPZboundary.AllETE
areroundedtothenearest5minutes.
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For example, assuming no more than one special needs person per HH implies that 253
ambulatoryhouseholdsneedtobeserviced.Whileonly9busesareneededfromacapacity
perspective, if 30 buses are deployed to service these special needs HH, then each would
requireabout9stops.ThefollowingoutlinestheETEcalculations:
- 1. Assume30busesaredeployed,eachwithabout9stops,toserviceatotalof253HH.
- 2. TheETEiscalculatedasfollows:
- a. Busesarriveatthefirstpickuplocation:180minutes
- b. LoadHHmembersatfirstpickup:5minutes
- c. Traveltosubsequentpickuplocations:8@9minutes=72minutes
- d. LoadHHmembersatsubsequentpickuplocations:8@5minutes=40minutes
- e. TraveltoEPZboundary:24minutes(5miles@12.5mph).
ETE:180+5+72+40+24=5:25roundeduptothenearest5minutes
8.6 CorrectionalFacilities
As detailedin Table E6, there is one correctional facilitywithin the EPZ -Virginia Peninsula
RegionalJail.Thecapacityofthisfacilityis595persons.Accordingtoinformationprovidedby
localemergencymanagementofficials,thisfacilitywouldshelterinplaceintheeventofan
evacuationofthegeneralpublic.
SurryPowerStation
812
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Event A
AdvisorytoEvacuate B
BusDispatchedfromDepot C
BusArrivesatFacility/PickupRoute D
BusDepartsforReceptionCenter E
BusExitsRegion F
BusArrivesatAssemblyCenter/HostFacility
G
BusAvailableforSecondWaveEvacuationService Activity AoB DriverMobilization BoC TraveltoFacilityortoPickupRoute CoD PassengersBoardtheBus DoE BusTravelsTowardsRegionBoundary EoF BusTravelsTowardsAssemblyCenterOutsidetheEPZ FoG PassengersLeaveBus;DriverTakesaBreak
Figure81.ChronologyofTransitEvacuationOperations
A B
C D
E F
G Time (SubsequentWave)
SurryPowerStation
813
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
E
Figure82.TransitDependentBusRoutesforIsleofWightCounty
SurryPowerStation
814
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
E
Figure83.TransitDependentBusRoutesforSurryCounty
SurryPowerStation
815
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Figure84.TransitDependentBusRoutesforYorkCounty
SurryPowerStation
816
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Figure85.TransitDependentBusRoutesfortheCityofWilliamsburg
SurryPowerStation
817
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Figure86.TransitDependentBusRoutesforJamesCityCounty
SurryPowerStation
818
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Figure87.TransitDependentBusRoutes2429fortheCityofNewportNews
SurryPowerStation
819
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Figure88.TransitDependentBusRoutes3035fortheCityofNewportNews
SurryPowerStation
820
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Figure89.TransitDependentBusRoutes3643fortheCityofNewportNews
SurryPowerStation
821
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table81.TransitDependentPopulationEstimates
2010EPZ
Population
SurveyAverageHH
Size
withIndicatedNo.of
Vehicles
Estimated
No.of
Households
SurveyPercentHH
withIndicatedNo.of
Vehicles
Survey
PercentHH with
Commuters
Survey
PercentHH withNon Returning Commuters
Total
People
Requiring Transport
Estimated
Ridesharing Percentage
People
Requiring Public
Transit
Percent
Population Requiring Public
Transit
0
1
2
0
1
2
152,677
1.50
1.79
2.57
61,813
3.23%
27.27%
50.71%
57%
40%
6,960
50%
3,480
2.3%
SurryPowerStation
822
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table82.SchoolandDaycarePopulationDemandEstimates
PAZ
SchoolName
Local
Enrollment Buses
Required
23
ClaraByrdBakerElementarySchool
509
8
23
DJMontagueElementarySchool
469
7
24
JamestownHighSchool
1,186
24
24
MatoakaElementarySchool
732
11
24
ProvidenceClassicalSchool
195
4
18C
GileadChristianAcademy
15
0
18D
JamesRiverElementarySchool
493
8
22B
RawlsByrdElementarySchool
461
7
14
GeneralStanfordElementarySchool
575
9
15
BCCharlesElementarySchool
546
8
15
FirstBaptistChurchDenbigh
120
2
15
JenkinsElementarySchool
440
7
15
MenchvilleHighSchool
1,776
36
15
SanfordElementarySchool
630
9
15
WarwickRiverChristianSchool
260
5
16
DavidADutrowElementarySchool
487
7
16
DenbighChristianAcademy
180
0
16
DenbighHighSchool
1,421
29
16
EpesElementarySchool
532
8
16
GeorgeJMcIntoshElementary
500
8
16
HolyTabernacleChristianAcademy
94
2
16
JMDozierMiddleSchool
1,145
23
16
LeeHallElementarySchool
634
10
16
MaryPassageMiddleSchool
969
20
16
OliverCGreenwoodElementarySchool
630
9
16
RichneckElementarySchool
674
10
16
RONelsonElementarySchool
584
9
16
WoodsideHighSchool
2,102
43
21
BerkeleyMiddleSchool
829
17
21
CollegeofWilliamandMary
8,200
34
21
MatthewWhaleyElementarySchool
471
7
21
WalsinghamAcademy(LowerSchool)
318
0
21
WalsinghamAcademy(UpperSchool)
243
0
17
YorktownMiddleSchool
621
15
19A
MagruderElementarySchool
322
9
19A
YorkCountyHeadStart
574
1
20A
BrutonHighSchool
65
13
SurryPowerStation
823
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
PAZ
SchoolName
Local
Enrollment Buses
Required
20A
WallerMillElementarySchool
609
5
20A
WilliamsburgHeadStart
747
1
20B
QueensLakeMiddleSchool
68
12
TOTAL:
31,426
437
Note:Schoolswhichrequire0busesrelyonparentstoprovidetransportationforstudents.
SurryPowerStation
824
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table83.ReceivingSchools
School
ReceivingSchool
ClaraByrdBakerElementarySchool
NewKentHighSchool
DJMontagueElementarySchool
NewKentHighSchool
JamestownHighSchool
LafayetteHighSchool
MatoakaElementarySchool
JBBlaytonElementary
ProvidenceClassicalSchool
NewKentHighSchool
JamesRiverElementarySchool
ToanoMiddleSchool
RawlsByrdElementarySchool
StonehouseElementary
GeneralStanfordElementarySchool
DeerParkElementarySchool
BCCharlesElementarySchool
CarverElementary
FirstBaptistChurchDenbigh
NewKentHighSchool
JenkinsElementarySchool
CrittendonMiddleSchool
MenchvilleHighSchool
HinesMiddleSchool
SanfordElementarySchool
RiversideElementary
WarwickRiverChristianSchool
TabernacleBaptistChurch
DavidADutrowElementarySchool
NewsomeParkElementary
DavidADutrowElementarySchool
NewsomeParkElementary
DenbighHighSchool
AnAchieveableDreamHighSchool
EpesElementarySchool
KilnCreekElementarySchool
GeorgeJMcIntoshElementary
AnAchievableDreamElementary
HolyTabernacleChristianAcademy
NewportNewsColiseum
JMDozierMiddleSchool
HuntingtonMiddleSchool
LeeHallElementarySchool
WatkinsEarlyChildhoodCenter
MaryPassageMiddleSchool
CrittendonMiddleSchool
OliverCGreenwoodElementarySchool
PalmerElementarySchool
RichneckElementarySchool
HidenwoodElementary
RONelsonElementarySchool
YatesElementarySchool
WoodsideHighSchool
HeritageHighSchool
BerkeleyMiddleSchool
HornsbyMiddleSchool
CollegeofWilliamandMary
NewKentHighSchool
MatthewWhaleyElementarySchool
NewKentHighSchool
YorktownMiddleSchool
GraftonComplex(GC)and/orNewKentHigh
School(NKHS)
MagruderElementarySchool
YorkCountyHeadStart
BrutonHighSchool
WallerMillElementarySchool
WilliamsburgHeadStart
QueensLakeMiddleSchool
SurryPowerStation
825
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table84.MedicalFacilityTransitDemand
PAZ
FacilityName
City/County
Cap
acity
Current
Census
Ambu
latory
Wheel
chair
Bound
Bed
ridden
WCBus
Runs
Bus
Runs
Ambulance
Runs
23
ChambrelatWilliamsburg
JamesCity
53
50
46
3
1
1
2
1
23
HancockGeriatricTreatmentCenter
JamesCity
300
265
215
20
30
1
8
15
24
ConsulateHealthCare
JamesCity
90
85
0
43
44
3
0
22
24
TheCovalescentatPatriotsColony Williamsburg
JamesCity
60
58
13
45
0
3
1
0
18B
MorningsideofWilliamsburg
JamesCity
85
80
64
15
1
1
3
1
18C
ColonialManorSeniorCommunity
JamesCity
65
54
29
25
0
2
1
0
22B
WoodhavenHallAtWilliamsburg
JamesCity
15
9
5
3
1
1
1
1
16
St.FrancisNursingCenter
Newport
News
115
105
57
37
11
2
2
6
21
EnvoyHealthCare
Williamsburg
150
150
0
130
20
7
0
10
21
MadisonRetirementCenter
Williamsburg
90
75
65
10
0
1
3
0
21
SpringArborofWilliamsburg
Williamsburg
50
50
46
4
0
1
2
0
21
WindsormeadeofWilliamsburg
Williamsburg
12
12
3
9
0
1
1
0
Totals
1085
993
543
344
108
24
24
56
SurryPowerStation
826
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table85.SummaryofTransportationResources
Transportation
Resource
Buses
WC
Buses
Ambulances ResourcesAvailable
NewportNewsPubicSchools 321
0
12
SurryCounty 32
1
3
YorkCounty 205
36
9
WilliamsburgAreaTransportationAuthority(WATA) 20
0
0
W/JCCSchools 156
52
0
CityofWilliamsburg 0
0
3
IsleofWightCounty 49
12
11
TOTAL:
783
101
38
ResourcesNeeded
PopulationGroup/MobilityLevel
Buses
WC
Buses
Ambulances Schools(Table82):
437
0
0
MedicalFacilities(Table84):
24
24
56
TransitDependentPopulation(Table810):
122
0
0
HomeboundSpecialNeeds(Section8.5):
30
5
0
TOTALTRANSPORTATIONNEEDS:
613
29
56
Note:YorkCountyhasaccessto2trolleyswhicharecountedasbusesinthetableaboveduetosimilaritiesinpassengercapacityandusage.
SurryPowerStation
827
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table86.BusRouteDescriptions
Bus
Route
Number
Description
NodesTraversedfromRouteStarttoEPZBoundary
1
IsleofWightCounty,Route1
1337,945,1013,946,1014,947
2
IsleofWightCounty,Route2
944,945,1013,946,1014,947
3
IsleofWightCounty,Route3
942,943,944,945,1013,946,1014,947
4
IsleofWightCounty,Route4
1316,1024,1022,1338,1021,1023,1352,1003,1004
5
SurryCounty,Route1
931,1309,930,1310,1311,1057,1056,1313,1314,1025,
976,1316
6
SurryCounty,Route2
939,938,937,936,935,934,933,932,1308,931,941,
1012,930,1260,1052,1051,1261,1271,1050,1049,
1262,1259,1047,1258,1048,1030,1084,1083
7
SurryCounty,Route3
1271,1272,1273,1274,1275,1276,1277,1278,1279,
1280,1281,1282,1029
8
SurryCounty,Route4
941,1012,930,1260,1052,1051,1261,1271,1050,1049,
1262,1259,1047,1258,1048,1030,1084,1083
9
SurryCounty,Route5
1263,1262,1259,1047,1258,1048,1030,1084,1083
10
YorkCounty,Route1
245,246,241,242,354,355,356,357,358,359,350,
1216,360,361,362,363,364,365,366,367,368,369,
370,373,673,674
11
YorkCounty,Route2
250,248,339,1218,341,308,1225,309,342,353,432,
345,344,346,1219,1221,347,1214,348,349,1215,350,
1216,360,361,362,363,364,365,366,367,368,369,
370,373,673,674
12
YorkCounty,Route3
309,310,1234,410,430,433,438,436,434,377,1236,
378,1557,379,1558,1237,376,675,385
13
YorkCounty,Route4
1239,379,1558,1237,376,675,385
14
CityofWilliamsburg,Route1
215,221,1121,176,1117,1111,1107,1108,1109,1110,
1135,1136,1137,185,184,183,1141,123,1157,33,34,
35
15
CityofWilliamsburg,Route2
226,228,189,218,1533,188,187,176,1122,193,1125,
1126,180,198,255
16
CityofWilliamsburg,Route3
335,336,337,219,216,214,215,221,1121,176,1122,
193,1125,1126,180,198,255,256,112,118
17
CityofWilliamsburg,Route4
223,226,228,189,218,1533,188,187,176,1122,193,
1125,1126,180,198,255,256,112,118
18
CityofWilliamsburg,Route5
258,257,208,1092,191,194,1124,193,1125,1126,180,
198,255,256,112,118
19
JamesCityCounty,Route1
319,318,320,321,322,323,324,305,304,303,1534,263
SurryPowerStation
828
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Bus
Route
Number
Description
NodesTraversedfromRouteStarttoEPZBoundary
20
JamesCityCounty,Route2
313,1227,315,326,327,429,411,1235,416,419,426,
421,425,423,464,461,458,460,457,455,445,441,447,
442,444,439,440,19,20,21,1440,1441,22,23,24,
1437,25,1436
21
JamesCityCounty,Route3
304,303,1534,263,262
22
JamesCityCounty,Route4
303,1534,263,262
23
JamesCityCounty,Route5
279,302,301,300,1552
24
CityofNewportNews,RouteD1
457,455,445,441,448,454,451,510,1449,511,509,
1453,505,507,508,502,1452,506,22,23,24,1437
25
CityofNewportNews,RouteD2
378,1236,377,1447,512,380,1438,1439,1440,1441,
22,23,24,1437
26
CityofNewportNews,RouteE1
1454,499,1457,497,495,482,478,485,487,490,493,
1520,1518,571,564,560,559,555,1515,569,1512,590,
599,608,1481,592
27
CityofNewportNews,RouteE2
492,490,493,1520,1518,571,564,560,559,555,1515,
569,1512,590,1483,600,591,594,595
28
CityofNewportNews,RouteE3
492,490,493,1520,1518,571,564,560,559,555,1515,
569,1512,590,599,608,1481,592
29
CityofNewportNews,RouteE4
521,1469,1470,527,528,554,553,551,1524,713,1474,
592
30
CityofNewportNews,RouteE5
527,528,554,553,551,1524,713,1474,592
31
CityofNewportNews,RouteE6
520,521,1469,1470,527,528,554,553,551,1524,713,
1474,592
32
CityofNewportNews,RouteF1
566,565,564,560,559,555,1515,569,1512,590,1483,
600,591,594,595
33
CityofNewportNews,RouteF2
1519,1518,571,564,560,559,555,1515,569,1512,590,
599,608,1481,592
34
CityofNewportNews,RouteF3
576,575,1458,574,573,572,1461,571,564,560,559,
555,1515,569,1512,590,599,608,1481,592
35
CityofNewportNews,RouteF4
576,578,579,1462,582,580,563,555,1515,569,1512,
590,599,608,1481,592
36
CityofNewportNews,RouteF5
1462,582,580,563,555,1515,569,1512,590,599,608,
1481,592
37
CityofNewportNews,RouteF6
563,570,1465,569,1512,590,599,608,1481,592
38
CityofNewportNews,RouteF7
568,1465,569,1512,590,599,608,1481,592
39
CityofNewportNews,RouteF8
589,586,591,594,595
40
CityofNewportNews,RouteF9
593,1484,595
41
CityofNewportNews,RouteF10
584,583,589,586,1477,590,599,608,1481,592
42
CityofNewportNews,RouteF11
581,583,589,586,1477,590,599,608,1481,592
43
CityofNewportNews,RouteF12
587,596,597,598,593,1484,595
SurryPowerStation
829
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Bus
Route
Number
Description
NodesTraversedfromRouteStarttoEPZBoundary
50
RawlsByrdElementarySchool
1536,1534,263,262,1165,30,31,32,33,34,35
51
MatoakaElementarySchool
1169,1167,146,1155,147,149
52
GeneralStanfordElementary
School
479,478,485,487,490,493,1520,1518,571,564,560,
559,555,1515,569,1512,590,1483,600,591,594,595
53
BCCharlesElementarySchool
596,597,598,593,1484,595
54
HolyTabernacleChristianAcademy
560,559,555,1515,569,1512,590,599,608,1481,592
55
ClaraByrdBakerElementarySchool
282,281,1176,262,1165,30,31,32,33,34,35
56
WarwickRiverChristianSchool
583,589,586,1477,590,599,608,1481,592
57
EpesElementarySchool
1461,571,564,560,559,555,1515,569,1512,590,599,
608,1481,592
58
CollegeofWilliamandMary
1101,1100,264,260,174,262,1165,30,31,32,33,34,35
59
BrutonHighSchool(NKHS)
79,76,1212,77,78,8,7
60
JenkinsElementarySchool
1482,594,595
61
DavidADutrowElementarySchool
571,564,560,559,555,1515,569,1512,590,599,608,
1481,592
62
GeorgeJMcIntoshElementary
528,554,553,551
63
JamesRiverElementarySchool
427,413,1231,417,418,14,431,13,12,11,10,9,78,8,7
64
JamestownHighSchool
1552,1184,1183,266,267,268,270,145,1167,146,
1155,147,149
65
JMDozierMiddleSchool
497,1457,499,1454,501,502,1452,506,22,23,24,
1437,25,1436
66
LeeHallElementarySchool
442,447,441,448,454,451,510,1449,511,509,1453,
505,507,508,502,1452,506,22,23,24,1437,25,1436
67
MagruderElementarySchool
248,250,1528,236,213,212,210,211,209,76,1212,77,
78,8,7
67
YorkCountyHeadStart(NKHS)
248,250,1528,236,213,212,210,211,209,76,1212,77,
78,8,7
68
MatthewWhaleyElementary
School
189,1531,190,202,203,208,1091,1211,209,76,1212,
77,78,8,7
69
MenchvilleHighSchool
596,597,598,593,1484,595
70
BerkeleyMiddleSchool
173,172,1161,177,178,179,1136,1137,185,184,183,
1141,123,1142,1158,1159,1144,124,119
71
DJMontagueElementarySchool
130,131,132
72
ProvidenceClassicalSchool
1172,276,275,274,1160,152,161,162,165,167,166,
1163,31,32,33,34,35
73
WallerMillElementarySchool
(NKHS)
196,195,194,191,1092,208,1091,1211,209,76,1212,
77,78,8,7
73
WilliamsburgHeadStart(NKHS)
196,195,194,191,1092,208,1091,1211,209,76,1212,
77,78,8,7
SurryPowerStation
830
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Bus
Route
Number
Description
NodesTraversedfromRouteStarttoEPZBoundary
74
QueensLakeMiddleSchool(NKHS)
246,241,243,239,244,210,211,209,76,1212,77,78,8,
7
75
YorktownMiddleSchool(NKHS)
379,1557,378,1236,377,434,436,18,17,16,414,15,
14,431,13,12,11,10,9,78,8,7
76
OliverCGreenwoodElementary
School
513,544,543,542,541,1444,380,1438,1439,1440,
1441,22,23,24,1437,25,1436
77
RichneckElementarySchool
527,528,554,553,551,1524,713,1474,592
78
MaryPassageMiddleSchool
1522,1520,1518,571,564,560,559,555,1515,569,
1512,590,1483,600,591,594,595
79
DenbighHighSchool
580,563,555,1515,569,1512,590,1483,600,591,594,
595
80
FirstBaptistChurchDenbigh
599,608,1481,592
81
SanfordElementarySchool
583,589,586,591,594,595
82
RONelsonElementarySchool
579,1462,582,580,563,555,1515,569,1512,590,1483,
600,591,594,595
83
WoodsideHighSchool
539,513,544,543,542,541,1444,380,1438,1439,1440,
1441,22,23,24,1437,25,1436
90
MadisonRetirementCenter
256,112,118
91
ChambrelatWilliamsburg
1106,1120,172,171,170,169,168,1164,167,166,1163,
31,32,33,34,35
91
HancockGeriatricTreatment
Center
1106,1120,172,171,170,169,168,1164,167,166,1163,
31,32,33,34,35
92
ConsulateHealthCare
263,262,1165,30,31,32,33,34,35
93
TheCovalescentatPatriotsColony Williamsburg
269,137,138,139,140
94
MorningsideofWilliamsburg
331,342,353,432,345,344,13,12,11,10,9
95
ColonialManorSeniorCommunity
427,413,1231,417,418,14,431,13,12,11,10,9,78,8,7
96
WoodhavenHallAtWilliamsburg
263,262,1165,30,31,32,33,34,35
97
St.FrancisNursingCenter
551,1524,713,1474,592
98
EnvoyHealthCare
309,342,353,432,345,344,13,12,11,10,9,78,8,7
99
SpringArborofWilliamsburg
210,211,209,76,1212,77,78,8,7
100
WindsormeadeofWilliamsburg
1169,1167,146,1155,147,149
101
YorktownMiddleSchool(GC)
381,657,693,1504,699
102
MagruderElementarySchool(GC)
308,1225,309,310,1234,410,430,433,438,436,434,
377,1447,512,380,1444,541,542,543,544,513,535,
1386,381,657,693,1504,699
103
YorkCountyHeadStart(GC)
308,1225,309,310,1234,410,430,433,438,436,434,
377,1447,512,380,1444,541,542,543,544,513,535,
1386,381,657,693,1504,699
SurryPowerStation
831
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Bus
Route
Number
Description
NodesTraversedfromRouteStarttoEPZBoundary
104
BrutonHighSchool(GC)
78,9,10,11,12,13,431,14,15,415,1232,1233,16,17,
18,437,440,19,20,21,1440
105
WallerMillElementarySchool(GC)
78,9,10,11,12,13,431,14,15,415,1232,1233,16,17,
18,437,440,19,20,21,1440
106
WilliamsburgHeadStart(GC)
78,9,10,11,12,13,431,14,15,415,1232,1233,16,17,
18,437,440,19,20,21,1440
107
QueensLakeMiddleSchool(GC)
308,1225,309,310,1234,410,430,433,438,436,434,
377,1447,512,380,1444,541,542,543,544,513,535,
1386,381,657,693,1504,699
SurryPowerStation
832
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table87.SchoolEvacuationTimeEstimatesGoodWeather
School
City/County
Driver
Mobilization
Time(min)
Loading
Time
(min)
Dist.To
EPZ
Bdry
(mi)
Average Speed
(mph)
Travel
Timeto
EPZ
Bdry
(min)
ETE
(hr:min)
Dist.
EPZ
Bdryto
R.S.
(mi.)
Travel
Time
from
EPZ
Bdryto
R.S.
(min)
ETEto
R.S.
(hr:min)
ClaraByrdBakerElementarySchool
JamesCity
180
15
6.0
5.6
64
4:20
27.4
36
4:55
DJMontagueElementarySchool
JamesCity
180
15
0.2
2.1
4
3:20
22.9
31
3:50
JamestownHighSchool
JamesCity
180
15
5.6
4.2
79
4:35
1.8
2
4:40
MatoakaElementarySchool
JamesCity
180
15
3.1
2.5
75
4:30
3.4
5
4:35
ProvidenceClassicalSchool
JamesCity
180
15
5.6
6.4
53
4:10
27.4
36
4:45
JamesRiverElementarySchool
JamesCity
180
15
5.6
9.8
34
3:50
1.8
2
3:55
RawlsByrdElementarySchool
JamesCity
180
15
5.3
6.1
52
4:10
9.6
13
4:20
GeneralStanfordElementarySchool
NewportNews
145
15
5.3
9.6
33
3:15
4.5
6
3:20
BCCharlesElementarySchool
NewportNews
145
15
1.5
12.6
7
2:50
7.5
10
3:00
FirstBaptistChurchDenbigh
NewportNews
145
15
0.5
1.1
26
3:10
11.1
15
3:25
JenkinsElementarySchool
NewportNews
145
15
0.8
33.0
1
2:45
7.4
10
2:55
MenchvilleHighSchool
NewportNews
145
15
2.4
12.5
12
2:55
5.9
8
3:00
SanfordElementarySchool
NewportNews
145
15
2.1
17.0
7
2:50
4.1
5
2:55
WarwickRiverChristianSchool
NewportNews
145
15
2.3
4.1
34
3:15
11.1
15
3:30
DavidADutrowElementarySchool
NewportNews
145
15
2.9
4.4
39
3:20
15.1
20
3:40
DavidADutrowElementarySchool
NewportNews
145
15
2.9
4.4
39
3:20
15.1
20
3:40
DenbighHighSchool
NewportNews
145
15
2.8
6.4
26
3:10
9.4
13
3:20
EpesElementarySchool
NewportNews
145
15
2.7
4.0
41
3:25
2.9
4
3:25
GeorgeJMcIntoshElementary
NewportNews
145
15
1.8
9.2
12
2:55
16.3
22
3:15
HolyTabernacleChristianAcademy
NewportNews
145
15
1.9
3.2
37
3:20
10.9
15
3:35
JMDozierMiddleSchool
NewportNews
145
15
5.5
23.4
14
2:55
14.2
19
3:15
LeeHallElementarySchool
NewportNews
145
15
6.3
25.8
15
2:55
5.5
7
3:05
MaryPassageMiddleSchool
NewportNews
145
15
4.1
7.2
34
3:15
7.4
10
3:25
OliverCGreenwoodElementarySchool
NewportNews
145
15
5.8
8.0
43
3:25
3.5
5
3:30
RichneckElementarySchool
NewportNews
145
15
4.6
11.4
24
3:05
3.7
5
3:10
RONelsonElementarySchool
NewportNews
145
15
3.8
7.9
29
3:10
1.7
2
3:15
SurryPowerStation
833
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
School
City/County
Driver
Mobilization
Time(min)
Loading
Time
(min)
Dist.To
EPZ
Bdry
(mi)
Average Speed
(mph)
Travel
Timeto
EPZ
Bdry
(min)
ETE
(hr:min)
Dist.
EPZ
Bdryto
R.S.
(mi.)
Travel
Time
from
EPZ
Bdryto
R.S.
(min)
ETEto
R.S.
(hr:min)
WoodsideHighSchool
NewportNews
145
15
6.2
8.2
45
3:25
13.0
17
3:45
BerkeleyMiddleSchool
Williamsburg
180
15
3.5
3.7
58
4:15
4.3
6
4:20
CollegeofWilliamandMary
Williamsburg
180
15
6.0
6.3
58
4:15
27.4
37
4:50
MatthewWhaleyElementarySchool
Williamsburg
180
15
3.8
6.4
35
3:50
26.9
36
4:30
YorktownMiddleSchool(NKHS)
York
110
15
14.7
9.1
96
3:45
26.9
36
4:20
MagruderElementarySchool(NKHS)
York
110
15
4.0
3.3
72
3:20
26.9
36
3:55
YorkCountyHeadStart(NKHS)
York
110
15
4.0
3.3
72
3:20
26.9
36
3:55
BrutonHighSchool(NKHS)
York
110
15
2.0
4.6
27
2:35
26.9
36
3:10
WallerMillElementarySchool(NKHS)
York
110
15
4.4
4.4
59
3:05
27.0
36
3:40
WilliamsburgHeadStart(NKHS)
York
110
15
4.4
4.4
59
3:05
27.0
36
3:40
QueensLakeMiddleSchool(NKHS)
York
110
15
4.1
4.2
58
3:05
26.9
36
3:40
YorktownMiddleSchool(GC)
York
110
15
2.4
4.7
31
2:40
2.7
4
2:40
MagruderElementarySchool(GC)
York
110
15
12.1
10.6
69
3:15
3.8
5
3:20
YorkCountyHeadStart(GC)
York
110
15
12.1
10.1
72
3:20
3.8
5
3:25
BrutonHighSchool(GC)
York
110
15
14.8
10.2
87
3:35
3.9
5
3:40
WallerMillElementarySchool(GC)
York
110
15
17.1
10.7
96
3:45
11.8
16
4:00
WilliamsburgHeadStart(GC)
York
110
15
17.1
10.7
96
3:45
11.8
16
4:00
QueensLakeMiddleSchool(GC)
York
110
15
13.3
9.2
87
3:35
3.9
5
3:40
MaximumforEPZ:
4:35
Maximum:
4:55
AverageforEPZ:
3:25
Average:
3:45
Note:AverageandMaxETEvaluesaregivenforthecaseofYorkschoolsgoingtotheNKHSreceivinglocation
SurryPowerStation
834
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table88.SchoolEvacuationTimeEstimatesRain
School
City/County
Driver
Mobilization
Time(min)
Loading
Time
(min)
Dist.To
EPZ
Bdry
(mi)
Average Speed
(mph)
Travel
Timeto
EPZ
Bdry
(min)
ETE
(hr:min)
Dist.
EPZ
Bdryto
R.S.
(mi.)
Travel
Time
from
EPZ
Bdryto
R.S.
(min)
ETEto
R.S.
(hr:min)
ClaraByrdBakerElementarySchool
JamesCity
190
20
6.0
6.0
60
4:30
27.4
41
5:15
DJMontagueElementarySchool
JamesCity
190
20
0.2
10.6
1
3:35
22.9
34
4:05
JamestownHighSchool
JamesCity
190
20
5.6
3.6
94
5:05
1.8
3
5:10
MatoakaElementarySchool
JamesCity
190
20
3.1
2.0
95
5:05
3.4
5
5:10
ProvidenceClassicalSchool
JamesCity
190
20
5.6
5.4
62
4:35
27.4
41
5:15
JamesRiverElementarySchool
JamesCity
190
20
5.6
11.9
28
4:00
1.8
3
4:05
RawlsByrdElementarySchool
JamesCity
190
20
5.3
5.5
58
4:30
9.6
14
4:45
GeneralStanfordElementarySchool
NewportNews
155
20
5.3
7.4
43
3:40
4.5
7
3:45
BCCharlesElementarySchool
NewportNews
155
20
1.5
12.4
7
3:05
7.5
11
3:15
FirstBaptistChurchDenbigh
NewportNews
155
20
0.5
1.1
28
3:25
11.1
17
3:40
JenkinsElementarySchool
NewportNews
155
20
0.8
31.2
2
3:00
7.4
11
3:10
MenchvilleHighSchool
NewportNews
155
20
2.4
12.4
12
3:10
5.9
9
3:20
SanfordElementarySchool
NewportNews
155
20
2.1
6.9
18
3:15
4.1
6
3:20
WarwickRiverChristianSchool
NewportNews
155
20
2.3
2.2
62
4:00
11.1
17
4:15
DavidADutrowElementarySchool
NewportNews
155
20
2.9
2.7
63
4:00
15.1
23
4:25
DavidADutrowElementarySchool
NewportNews
155
20
2.9
2.7
63
4:00
15.1
23
4:25
DenbighHighSchool
NewportNews
155
20
2.8
4.1
42
3:40
9.4
14
3:55
EpesElementarySchool
NewportNews
155
20
2.7
2.6
61
4:00
2.9
4
4:00
GeorgeJMcIntoshElementary
NewportNews
155
20
1.8
5.8
18
3:15
16.3
24
3:40
HolyTabernacleChristianAcademy
NewportNews
155
20
1.9
2.1
56
3:55
10.9
16
4:10
JMDozierMiddleSchool
NewportNews
155
20
5.5
17.1
19
3:15
14.2
21
3:35
LeeHallElementarySchool
NewportNews
155
20
6.3
19.6
19
3:15
5.5
8
3:25
MaryPassageMiddleSchool
NewportNews
155
20
4.1
5.8
43
3:40
7.4
11
3:50
OliverCGreenwoodElementarySchool
NewportNews
155
20
5.8
40.0
9
3:05
3.5
5
3:10
RichneckElementarySchool
NewportNews
155
20
4.6
6.2
44
3:40
3.7
6
3:45
RONelsonElementarySchool
NewportNews
155
20
3.8
5.1
45
3:40
1.7
3
3:45
SurryPowerStation
835
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
School
City/County
Driver
Mobilization
Time(min)
Loading
Time
(min)
Dist.To
EPZ
Bdry
(mi)
Average Speed
(mph)
Travel
Timeto
EPZ
Bdry
(min)
ETE
(hr:min)
Dist.
EPZ
Bdryto
R.S.
(mi.)
Travel
Time
from
EPZ
Bdryto
R.S.
(min)
ETEto
R.S.
(hr:min)
WoodsideHighSchool
NewportNews
155
20
6.2
40.0
9
3:05
13.0
19
3:25
BerkeleyMiddleSchool
Williamsburg
190
20
3.5
3.0
71
4:45
4.3
6
4:50
CollegeofWilliamandMary
Williamsburg
190
20
6.0
5.9
61
4:35
27.4
41
5:15
MatthewWhaleyElementarySchool
Williamsburg
190
20
3.8
5.4
42
4:15
26.9
40
4:55
YorktownMiddleSchool(NKHS)
York
120
20
14.7
8.8
100
4:00
26.9
40
4:40
MagruderElementarySchool(NKHS)
York
120
20
4.0
2.5
97
4:00
26.9
40
4:40
YorkCountyHeadStart(NKHS)
York
120
20
4.0
2.5
97
4:00
26.9
40
4:40
BrutonHighSchool(NKHS)
York
120
20
2.0
3.8
32
2:55
26.9
40
3:35
WallerMillElementarySchool(NKHS)
York
120
20
4.4
3.2
81
3:45
27.0
40
4:25
WilliamsburgHeadStart(NKHS)
York
120
20
4.4
3.2
81
3:45
27.0
40
4:25
QueensLakeMiddleSchool(NKHS)
York
120
20
4.1
3.3
75
3:35
26.9
40
4:15
YorktownMiddleSchool(GC)
York
120
20
2.4
3.5
42
3:05
2.7
4
3:10
MagruderElementarySchool(GC)
York
120
20
12.1
7.0
104
4:05
3.8
6
4:10
YorkCountyHeadStart(GC)
York
120
20
12.1
6.6
111
4:15
3.8
6
4:20
BrutonHighSchool(GC)
York
120
20
14.8
10.1
88
3:50
3.9
6
3:55
WallerMillElementarySchool(GC)
York
120
20
17.1
10.8
95
3:55
11.8
18
4:15
WilliamsburgHeadStart(GC)
York
120
20
17.1
10.8
95
3:55
11.8
18
4:15
QueensLakeMiddleSchool(GC)
York
120
20
13.3
5.7
141
4:45
3.9
6
4:50
MaximumforEPZ:
5:05
Maximum:
5:15
AverageforEPZ:
3:50
Average:
4:10
Note:AverageandMaxETEvaluesaregivenforthecaseofYorkschoolsgoingtotheNKHSreceivinglocation
SurryPowerStation
836
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table89.SchoolEvacuationTimeEstimatesSnow
School
City/County
Driver
Mobilization
Time(min)
Loading
Time
(min)
Dist.To
EPZ
Bdry
(mi)
Average Speed
(mph)
Travel
Timeto
EPZ
Bdry
(min)
ETE
(hr:min)
Dist.
EPZ
Bdryto
R.S.
(mi.)
Travel
Time
from
EPZ
Bdryto
R.S.
(min)
ETEto
R.S.
(hr:min)
ClaraByrdBakerElementarySchool
JamesCity
200
25
6.0
5.4
66
4:55
27.4
47
5:40
DJMontagueElementarySchool
JamesCity
200
25
0.2
2.4
4
3:50
22.9
39
4:30
JamestownHighSchool
JamesCity
200
25
5.6
3.1
106
5:35
1.8
3
5:35
MatoakaElementarySchool
JamesCity
200
25
3.1
1.9
97
5:25
3.4
6
5:30
ProvidenceClassicalSchool
JamesCity
200
25
5.6
5.9
57
4:45
27.4
47
5:30
JamesRiverElementarySchool
JamesCity
200
25
5.6
8.1
41
4:30
1.8
3
4:30
RawlsByrdElementarySchool
JamesCity
200
25
5.3
5.6
56
4:45
9.6
16
5:00
GeneralStanfordElementarySchool
NewportNews
165
25
5.3
7.6
42
3:55
4.5
8
4:00
BCCharlesElementarySchool
NewportNews
165
25
1.5
10.9
8
3:20
7.5
13
3:35
FirstBaptistChurchDenbigh
NewportNews
165
25
0.5
1.0
29
3:40
11.1
19
4:00
JenkinsElementarySchool
NewportNews
165
25
0.8
21.9
2
3:15
7.4
13
3:25
MenchvilleHighSchool
NewportNews
165
25
2.4
10.9
14
3:25
5.9
10
3:35
SanfordElementarySchool
NewportNews
165
25
2.1
7.2
17
3:30
4.1
7
3:35
WarwickRiverChristianSchool
NewportNews
165
25
2.3
2.3
58
4:10
11.1
19
4:30
DavidADutrowElementarySchool
NewportNews
165
25
2.9
2.6
65
4:15
15.1
26
4:45
DavidADutrowElementarySchool
NewportNews
165
25
2.9
2.6
65
4:15
15.1
26
4:45
DenbighHighSchool
NewportNews
165
25
2.8
4.4
39
3:50
9.4
16
4:05
EpesElementarySchool
NewportNews
165
25
2.7
2.7
60
4:10
2.9
5
4:15
GeorgeJMcIntoshElementary
NewportNews
165
25
1.8
5.7
18
3:30
16.3
28
4:00
HolyTabernacleChristianAcademy
NewportNews
165
25
1.9
1.9
61
4:15
10.9
19
4:30
JMDozierMiddleSchool
NewportNews
165
25
5.5
18.0
18
3:30
14.2
24
3:55
LeeHallElementarySchool
NewportNews
165
25
6.3
20.1
19
3:30
5.5
9
3:40
MaryPassageMiddleSchool
NewportNews
165
25
4.1
5.7
43
3:55
7.4
13
4:10
OliverCGreenwoodElementarySchool
NewportNews
165
25
5.8
6.4
54
4:05
3.5
6
4:10
RichneckElementarySchool
NewportNews
165
25
4.6
7.5
36
3:50
3.7
6
3:55
RONelsonElementarySchool
NewportNews
165
25
3.8
6.2
37
3:50
1.7
3
3:50
SurryPowerStation
837
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
School
City/County
Driver
Mobilization
Time(min)
Loading
Time
(min)
Dist.To
EPZ
Bdry
(mi)
Average Speed
(mph)
Travel
Timeto
EPZ
Bdry
(min)
ETE
(hr:min)
Dist.
EPZ
Bdryto
R.S.
(mi.)
Travel
Time
from
EPZ
Bdryto
R.S.
(min)
ETEto
R.S.
(hr:min)
WoodsideHighSchool
NewportNews
165
25
6.2
6.5
57
4:10
13.0
22
4:30
BerkeleyMiddleSchool
Williamsburg
200
25
3.5
2.8
77
5:05
4.3
7
5:10
CollegeofWilliamandMary
Williamsburg
200
25
6.0
5.9
62
4:50
27.4
47
5:35
MatthewWhaleyElementarySchool
Williamsburg
200
25
3.8
5.4
42
4:30
26.9
46
5:15
YorktownMiddleSchool(NKHS)
York
130
25
14.7
8.5
103
4:20
26.9
46
5:05
MagruderElementarySchool(NKHS)
York
130
25
4.0
3.2
75
3:50
26.9
46
4:40
YorkCountyHeadStart(NKHS)
York
130
25
4.0
3.2
75
3:50
26.9
46
4:40
BrutonHighSchool(NKHS)
York
130
25
2.0
3.2
38
3:15
26.9
46
4:00
WallerMillElementarySchool(NKHS)
York
130
25
4.4
4.7
56
3:35
27.0
46
4:20
WilliamsburgHeadStart(NKHS)
York
130
25
4.4
4.7
56
3:35
27.0
46
4:20
QueensLakeMiddleSchool(NKHS)
York
130
25
4.1
3.8
64
3:40
26.9
46
4:25
YorktownMiddleSchool(GC)
York
130
25
2.4
6.0
24
3:00
2.7
5
3:05
MagruderElementarySchool(GC)
York
130
25
12.1
8.7
84
4:00
3.8
7
4:10
YorkCountyHeadStart(GC)
York
130
25
12.1
8.5
86
4:05
3.8
7
4:10
BrutonHighSchool(GC)
York
130
25
14.8
9.2
96
4:15
3.9
7
4:20
WallerMillElementarySchool(GC)
York
130
25
17.1
10.1
101
4:20
11.8
20
4:40
WilliamsburgHeadStart(GC)
York
130
25
17.1
9.2
111
4:30
11.8
20
4:50
QueensLakeMiddleSchool(GC)
York
130
25
13.3
7.8
102
4:20
3.9
7
4:25
MaximumforEPZ:
5:35
Maximum:
5:40
AverageforEPZ:
4:05
Average:
4:30
Note:AverageandMaxETEvaluesaregivenforthecaseofYorkschoolsgoingtotheNKHSreceivinglocation
SurryPowerStation
838
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table810.SummaryofTransitDependentBusRoutes
Route
No.of
Buses
RouteDescription
Length
(mi.)
1
1
IsleofWightCounty,Route1
9.1
2
1
IsleofWightCounty,Route2
9.6
3
1
IsleofWightCounty,Route3
17.9
4
1
IsleofWightCounty,Route4
12.3
5
1
SurryCounty,Route1
13.9
6
1
SurryCounty,Route2
24.2
7
1
SurryCounty,Route3
11.7
8
1
SurryCounty,Route4
14.4
9
1
SurryCounty,Route5
19.8
10
3
YorkCounty,Route1
15.4
11
3
YorkCounty,Route2
19.6
12
2
YorkCounty,Route3
10.5
13
2
YorkCounty,Route4
4.1
14
2
CityofWilliamsburg,Route1
4.4
15
2
CityofWilliamsburg,Route2
3.6
16
2
CityofWilliamsburg,Route3
4.2
17
2
CityofWilliamsburg,Route4
5.2
18
2
CityofWilliamsburg,Route5
6.2
19
7
JamesCityCounty,Route1
16.5
20
7
JamesCityCounty,Route2
16.1
21
7
JamesCityCounty,Route3
13.7
22
7
JamesCityCounty,Route4
9.5
23
7
JamesCityCounty,Route5
12.2
24
3
CityofNewportNews,RouteD1
11.2
25
3
CityofNewportNews,RouteD2
10.5
26
3
CityofNewportNews,RouteE1
9.6
27
3
CityofNewportNews,RouteE2
6.8
28
3
CityofNewportNews,RouteE3
5.7
29
3
CityofNewportNews,RouteE4
7.8
30
3
CityofNewportNews,RouteE5
7.0
31
3
CityofNewportNews,RouteE6
11.0
32
3
CityofNewportNews,RouteF1
8.8
33
3
CityofNewportNews,RouteF2
4.5
34
3
CityofNewportNews,RouteF3
7.1
35
3
CityofNewportNews,RouteF4
6.1
36
3
CityofNewportNews,RouteF5
7.5
37
3
CityofNewportNews,RouteF6
3.6
SurryPowerStation
839
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Route
No.of
Buses
RouteDescription
Length
(mi.)
38
3
CityofNewportNews,RouteF7
8.5
39
3
CityofNewportNews,RouteF8
5.6
40
3
CityofNewportNews,RouteF9
3.4
41
3
CityofNewportNews,RouteF10
4.9
42
2
CityofNewportNews,RouteF11
5.4
43
2
CityofNewportNews,RouteF12
4.1
Total:
122
SurryPowerStation
840
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table811.TransitDependentEvacuationTimeEstimatesGoodWeather
Route
Number
Bus
Number
OneWave
TwoWave
Mobilization
(min)
Route
Length
(miles)
Speed
(mph)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
Distance
toEAC
(miles)
Travel
Timeto
EAC
(min)
Unload
(min)
Driver
Rest
(min)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
1
1
180
9.1
44.3
12
30
3:45
7.6
10
5
10
34
30
5:15
2
1
180
9.6
44.1
13
30
3:45
8.6
12
5
10
37
30
5:20
3
1
180
17.9
44.8
24
30
3:55
9.4
13
5
10
60
30
5:55
4
1
180
12.3
44.5
17
30
3:50
16.5
22
5
10
55
30
5:55
5
1
180
13.9
41.3
20
30
3:50
16.1
21
5
10
59
30
6:00
6
1
180
24.2
45.0
32
30
4:05
3.4
5
5
10
69
30
6:05
7
1
180
11.7
33.3
21
30
3:55
4.3
6
5
10
42
30
5:30
8
1
180
14.4
45.0
19
30
3:50
2.7
4
5
10
42
30
5:25
9
1
180
19.8
44.0
27
30
4:00
3.4
5
5
10
57
30
5:50
10
13
180
15.4
43.3
21
30
3:55
5.1
7
5
10
49
30
5:40
11
13
180
19.6
43.1
27
30
4:00
5.1
7
5
10
59
30
5:55
12
12
180
10.5
21.6
29
30
4:00
4.8
6
5
10
35
30
5:30
13
13
180
4.1
8.2
30
30
4:00
4.8
6
5
10
19
30
5:15
14
12
180
4.4
4.2
64
30
4:35
27.4
36
5
10
49
30
6:50
15
12
180
3.6
15.8
14
30
3:45
27.3
36
5
10
47
30
5:55
16
12
180
4.2
7.1
35
30
4:05
27.3
36
5
10
48
30
6:15
17
12
180
5.2
7.1
45
30
4:15
27.3
36
5
10
51
30
6:30
18
12
180
6.2
6.7
56
30
4:30
27.3
36
5
10
53
30
6:45
19
14
180
16.5
42.1
24
30
3:55
13.9
19
5
10
63
30
6:05
57
180
16.5
42.1
24
30
3:55
13.9
19
5
10
63
30
6:05
20
14
180
16.1
41.7
23
30
3:55
10.2
14
5
10
57
30
5:55
57
180
16.1
41.7
23
30
3:55
10.2
14
5
10
57
30
5:55
SurryPowerStation
841
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Route
Number
Bus
Number
OneWave
TwoWave
Mobilization
(min)
Route
Length
(miles)
Speed
(mph)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
Distance
toEAC
(miles)
Travel
Timeto
EAC
(min)
Unload
(min)
Driver
Rest
(min)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
21
14
180
13.7
43.5
19
30
3:50
13.9
19
5
10
55
30
5:50
57
180
13.7
43.5
19
30
3:50
13.9
19
5
10
55
30
5:50
22
14
180
9.5
36.4
16
30
3:50
13.9
19
5
10
44
30
5:40
57
180
9.5
36.4
16
30
3:50
13.9
19
5
10
44
30
5:40
23
14
180
12.2
39.7
18
30
3:50
13.9
19
5
10
53
30
5:50
57
180
12.2
39.7
18
30
3:50
13.9
19
5
10
53
30
5:50
24
13
180
11.2
43.3
15
30
3:45
10.4
14
5
10
44
30
5:30
25
13
180
10.5
44.6
14
30
3:45
10.4
14
5
10
42
30
5:30
26
13
180
9.6
14.8
39
30
4:10
11.1
15
5
10
40
30
5:50
27
13
180
6.8
16.3
25
30
3:55
12.0
16
5
10
35
30
5:35
28
13
180
5.7
11.1
31
30
4:05
11.1
15
5
10
30
30
5:35
29
13
180
7.8
22.6
21
30
3:55
13.5
18
5
10
40
30
5:40
30
13
180
7.0
20.9
20
30
3:50
11.9
16
5
10
37
30
5:30
31
13
180
11.0
24.0
28
30
4:00
12.6
17
5
10
48
30
5:50
32
13
180
8.8
18.6
28
30
4:00
12.3
16
5
10
40
30
5:45
33
13
180
4.5
10.0
27
30
4:00
11.1
15
5
10
28
30
5:30
34
13
180
7.1
11.4
38
30
4:10
11.1
15
5
10
35
30
5:45
35
13
180
6.1
11.4
32
30
4:05
11.1
15
5
10
32
30
5:40
36
13
180
7.5
12.4
36
30
4:10
11.1
15
5
10
36
30
5:50
37
13
180
3.6
7.3
30
30
4:00
9.9
13
5
10
23
30
5:25
38
13
180
8.5
12.4
41
30
4:15
11.1
15
5
10
38
30
5:55
39
13
180
5.6
20.4
17
30
3:50
9.9
13
5
10
32
30
5:25
40
13
180
3.4
25.8
8
30
3:40
10.6
14
5
10
25
30
5:05
41
13
180
4.9
10.8
27
30
4:00
11.1
15
5
10
30
30
5:30
42
12
180
5.4
11.4
28
30
4:00
11.1
15
5
10
31
30
5:35
43
12
180
4.1
19.2
13
30
3:45
9.8
13
5
10
26
30
5:10
MaximumETE:
4:35
MaximumETE:
6:50
AverageETE:
4:00
AverageETE:
5:45
SurryPowerStation
842
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table812.TransitDependentEvacuationTimeEstimatesRain
Route
Number
Bus
Number
OneWave
TwoWave
Mobilization
(min)
Route
Length
(miles)
Speed
(mph)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
Distance
toEAC
(miles)
Travel
Timeto
EAC
(min)
Unload
(min)
Driver
Rest
(min)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
1
1
190
9.1
40.0
14
40
4:05
7.6
11
5
10
37
40
5:50
2
1
190
9.6
40.0
14
40
4:05
8.6
13
5
10
40
40
5:55
3
1
190
17.9
40.0
27
40
4:20
9.4
14
5
10
65
40
6:35
4
1
190
12.3
40.0
18
40
4:10
16.5
25
5
10
60
40
6:30
5
1
190
13.9
37.8
22
40
4:15
16.1
24
5
10
64
40
6:40
6
1
190
24.2
40.0
36
40
4:30
3.4
5
5
10
74
40
6:45
7
1
190
11.7
30.8
23
40
4:15
4.3
6
5
10
44
40
6:05
8
1
190
14.4
40.0
22
40
4:15
2.7
4
5
10
45
40
6:00
9
1
190
19.8
40.0
30
40
4:20
3.4
5
5
10
61
40
6:25
10
13
190
15.4
20.9
44
40
4:35
5.1
8
5
10
51
40
6:30
11
13
190
19.6
21.2
56
40
4:50
5.1
8
5
10
63
40
7:00
12
12
190
10.5
13.2
48
40
4:40
4.8
7
5
10
37
40
6:20
13
13
190
4.1
5.0
49
40
4:40
4.8
7
5
10
20
40
6:05
14
12
190
4.4
3.1
85
40
5:15
27.4
41
5
10
54
40
7:50
15
12
190
3.6
8.8
25
40
4:15
27.3
41
5
10
52
40
6:45
16
12
190
4.2
4.5
55
40
4:45
27.3
41
5
10
54
40
7:15
17
12
190
5.2
5.4
58
40
4:50
27.3
41
5
10
57
40
7:25
18
12
190
6.2
5.4
70
40
5:00
27.3
41
5
10
59
40
7:35
19
14
190
16.5
38.8
26
40
4:20
13.9
21
5
10
68
40
6:45
57
190
16.5
38.8
26
40
4:20
13.9
21
5
10
68
40
6:45
20
14
190
16.1
35.7
27
40
4:20
10.2
15
5
10
61
40
6:35
57
190
16.1
35.7
27
40
4:20
10.2
15
5
10
61
40
6:35
SurryPowerStation
843
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Route
Number
Bus
Number
OneWave
TwoWave
Mobilization
(min)
Route
Length
(miles)
Speed
(mph)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
Distance
toEAC
(miles)
Travel
Timeto
EAC
(min)
Unload
(min)
Driver
Rest
(min)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
21
14
190
13.7
40.0
21
40
4:15
13.9
21
5
10
60
40
6:35
57
190
13.7
40.0
21
40
4:15
13.9
21
5
10
60
40
6:35
22
14
190
9.5
34.3
17
40
4:10
13.9
21
5
10
48
40
6:15
57
190
9.5
34.3
17
40
4:10
13.9
21
5
10
48
40
6:15
23
14
190
12.2
35.9
20
40
4:10
13.9
21
5
10
57
40
6:25
57
190
12.2
35.9
20
40
4:10
13.9
21
5
10
57
40
6:25
24
13
190
11.2
29.2
23
40
4:15
10.4
16
5
10
47
40
6:15
25
13
190
10.5
39.1
16
40
4:10
10.4
16
5
10
45
40
6:10
26
13
190
9.6
9.2
63
40
4:55
11.1
17
5
10
44
40
6:55
27
13
190
6.8
9.1
45
40
4:35
12.0
18
5
10
37
40
6:30
28
13
190
5.7
6.2
56
40
4:50
11.1
17
5
10
33
40
6:35
29
13
190
7.8
11.0
43
40
4:35
13.5
20
5
10
43
40
6:35
30
13
190
7.0
9.5
44
40
4:35
11.9
18
5
10
38
40
6:30
31
13
190
11.0
12.9
51
40
4:45
12.6
19
5
10
52
40
6:55
32
13
190
8.8
10.7
50
40
4:40
12.3
18
5
10
44
40
6:40
33
13
190
4.5
4.2
64
40
4:55
11.1
17
5
10
29
40
6:40
34
13
190
7.1
6.5
66
40
5:00
11.1
17
5
10
38
40
6:50
35
13
190
6.1
6.4
57
40
4:50
11.1
17
5
10
35
40
6:40
36
13
190
7.5
7.3
62
40
4:55
11.1
17
5
10
39
40
6:50
37
13
190
3.6
4.2
52
40
4:45
9.9
15
5
10
25
40
6:20
38
13
190
8.5
7.6
66
40
5:00
11.1
17
5
10
41
40
6:55
39
13
190
5.6
14.4
24
40
4:15
9.9
15
5
10
32
40
6:00
40
13
190
3.4
24.2
8
40
4:00
10.6
16
5
10
27
40
5:40
41
13
190
4.9
4.7
63
40
4:55
11.1
17
5
10
32
40
6:40
42
12
190
5.4
6.3
52
40
4:45
11.1
17
5
10
33
40
6:30
43
12
190
4.1
11.8
21
40
4:15
9.8
15
5
10
29
40
5:55
MaximumETE:
5:15
MaximumETE:
7:50
AverageETE:
4:30
AverageETE:
6:35
SurryPowerStation
844
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table813.TransitDependentEvacuationTimeEstimatesSnow
Route
Number
Bus
Number
OneWave
TwoWave
Mobilization
(min)
Route
Length
(miles)
Speed
(mph)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
Distance
toEAC
(miles)
Travel
Timeto
EAC
(min)
Unload
(min)
Driver
Rest
(min)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
1
1
200
9.1
35.0
16
50
4:30
7.6
13
5
10
41
50
6:30
2
1
200
9.6
35.0
16
50
4:30
8.6
15
5
10
44
50
6:35
3
1
200
17.9
35.0
31
50
4:45
9.4
16
5
10
71
50
7:20
4
1
200
12.3
35.0
21
50
4:35
16.5
28
5
10
66
50
7:15
5
1
200
13.9
34.4
24
50
4:35
16.1
28
5
10
70
50
7:20
6
1
200
24.2
35.0
41
50
4:55
3.4
6
5
10
80
50
7:30
7
1
200
11.7
27.5
26
50
4:40
4.3
7
5
10
48
50
6:45
8
1
200
14.4
35.0
25
50
4:35
2.7
5
5
10
48
50
6:35
9
1
200
19.8
35.0
34
50
4:45
3.4
6
5
10
66
50
7:05
10
13
200
15.4
34.9
26
50
4:40
5.1
9
5
10
56
50
6:50
11
13
200
19.6
34.8
34
50
4:45
5.1
9
5
10
68
50
7:10
12
12
200
10.5
20.4
31
50
4:45
4.8
8
5
10
40
50
6:40
13
13
200
4.1
8.2
30
50
4:40
4.8
8
5
10
22
50
6:20
14
12
200
4.4
3.3
82
50
5:35
27.4
47
5
10
61
50
8:30
15
12
200
3.6
10.1
22
50
4:35
27.3
47
5
10
60
50
7:30
16
12
200
4.2
5.2
48
50
5:00
27.3
47
5
10
60
50
7:55
17
12
200
5.2
5.3
60
50
5:10
27.3
47
5
10
64
50
8:10
18
12
200
6.2
5.2
72
50
5:25
27.3
47
5
10
66
50
8:25
19
14
200
16.5
34.9
28
50
4:40
13.9
24
5
10
74
50
7:25
57
200
16.5
34.9
28
50
4:40
13.9
24
5
10
74
50
7:25
20
14
200
16.1
32.8
29
50
4:40
10.2
18
5
10
67
50
7:10
57
200
16.1
32.8
29
50
4:40
10.2
18
5
10
67
50
7:10
SurryPowerStation
845
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Route
Number
Bus
Number
OneWave
TwoWave
Mobilization
(min)
Route
Length
(miles)
Speed
(mph)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
Distance
toEAC
(miles)
Travel
Timeto
EAC
(min)
Unload
(min)
Driver
Rest
(min)
Route
Travel
Time
(min)
Pickup
Time
(min)
ETE
(hr:min)
21
14
200
13.7
35.0
24
50
4:35
13.9
24
5
10
66
50
7:10
57
200
13.7
35.0
24
50
4:35
13.9
24
5
10
66
50
7:10
22
14
200
9.5
31.9
18
50
4:30
13.9
24
5
10
53
50
6:55
57
200
9.5
31.9
18
50
4:30
13.9
24
5
10
53
50
6:55
23
14
200
12.2
31.5
23
50
4:35
13.9
24
5
10
63
50
7:10
57
200
12.2
31.5
23
50
4:35
13.9
24
5
10
63
50
7:10
24
13
200
11.2
24.6
27
50
4:40
10.4
18
5
10
52
50
6:55
25
13
200
10.5
35.0
18
50
4:30
10.4
18
5
10
50
50
6:45
26
13
200
9.6
8.1
71
50
5:25
11.1
19
5
10
53
50
7:45
27
13
200
6.8
9.5
43
50
4:55
12.0
21
5
10
45
50
7:10
28
13
200
5.7
5.0
69
50
5:20
11.1
19
5
10
40
50
7:25
29
13
200
7.8
11.0
43
50
4:55
13.5
23
5
10
52
50
7:20
30
13
200
7.0
9.5
44
50
4:55
11.9
20
5
10
46
50
7:10
31
13
200
11.0
13.1
50
50
5:00
12.6
22
5
10
62
50
7:30
32
13
200
8.8
10.1
52
50
5:05
12.3
21
5
10
52
50
7:25
33
13
200
4.5
4.2
64
50
5:15
11.1
19
5
10
35
50
7:15
34
13
200
7.1
6.0
72
50
5:25
11.1
19
5
10
45
50
7:35
35
13
200
6.1
5.2
71
50
5:25
11.1
19
5
10
41
50
7:35
36
13
200
7.5
6.3
71
50
5:25
11.1
19
5
10
46
50
7:40
37
13
200
3.6
2.9
74
50
5:25
9.9
17
5
10
29
50
7:20
38
13
200
8.5
5.9
87
50
5:40
11.1
19
5
10
47
50
7:55
39
13
200
5.6
11.6
29
50
4:40
9.9
17
5
10
38
50
6:40
40
13
200
3.4
23.3
9
50
4:20
10.6
18
5
10
31
50
6:15
41
13
200
4.9
4.5
66
50
5:20
11.1
19
5
10
36
50
7:25
42
12
200
5.4
4.7
68
50
5:20
11.1
19
5
10
38
50
7:25
43
12
200
4.1
11.0
22
50
4:35
9.8
17
5
10
32
50
6:30
MaximumETE:
5:40
MaximumETE:
8:30
AverageETE:
4:55
AverageETE:
7:15
SurryPowerStation
846
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table814.MedicalFacilityEvacuationTimeEstimatesGoodWeather
MedicalFacility
Patient
Mobilization
(min)
Loading
Rate
(min
per
person)
People
Total
Loading
Time
(min)
Dist.
To
EPZ
Bdry
(mi)
Travel
Timeto
EPZ
Boundary (min)
ETE
(hr:min)
ChambrelatWilliamsburg
Ambulatory
180
1
46
30
4.5
49
4:20
Wheelchairbound
180
5
3
15
4.5
52
4:10
Bedridden
180
15
1
15
4.5
52
4:10
HancockGeriatricTreatmentCenter
Ambulatory
180
1
215
30
4.5
49
4:20
Wheelchairbound
180
5
20
100
4.5
9
4:50
Bedridden
180
15
30
30
4.5
49
4:20
ConsulateHealthCare
Wheelchairbound
180
5
43
100
7.2
12
4:55
Bedridden
180
15
44
30
7.2
55
4:25
TheCovalescentatPatriotsColony Williamsburg
Ambulatory
180
1
13
13
4.1
15
3:30
Wheelchairbound
180
5
45
100
4.1
10
4:50
MorningsideofWilliamsburg
Ambulatory
180
1
64
30
6.8
9
3:40
Wheelchairbound
180
5
15
75
6.8
9
4:25
Bedridden
180
15
1
15
6.8
9
3:25
ColonialManorSeniorCommunity
Ambulatory
180
1
29
29
8.0
28
4:00
Wheelchairbound
180
5
25
100
8.0
11
4:55
WoodhavenHallAtWilliamsburg
Ambulatory
180
1
5
5
5.2
53
4:00
Wheelchairbound
180
5
3
15
5.2
54
4:10
Bedridden
180
15
1
15
5.2
54
4:10
St.FrancisNursingCenter
Ambulatory
180
1
57
30
0.6
2
3:35
Wheelchairbound
180
5
37
100
0.6
1
4:45
Bedridden
180
15
11
30
0.6
2
3:35
EnvoyHealthCare
Wheelchairbound
180
5
130
100
6.4
9
4:50
Bedridden
180
15
20
30
6.4
24
3:55
MadisonRetirementCenter
Ambulatory
180
1
65
30
0.8
25
3:55
Wheelchairbound
180
5
10
50
0.8
24
4:15
SpringArborofWilliamsburg
Ambulatory
180
1
46
30
2.5
22
3:55
Wheelchairbound
180
5
4
20
2.5
27
3:50
WindsormeadeofWilliamsburg
Ambulatory
180
1
3
3
3.0
73
4:20
Wheelchairbound
180
5
9
45
3.0
49
4:35
MaximumETE:
4:55
AverageETE:
4:15
SurryPowerStation
847
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table815.MedicalFacilityEvacuationTimeEstimates-Rain
MedicalFacility
Patient
Mobilization
(min)
Loading
Rate
(min
per
person)
People
Total
Loading
Time
(min)
Dist.
To
EPZ
Bdry
(mi)
Travel
Timeto
EPZ
Boundary (min)
ETE
(hr:min)
ChambrelatWilliamsburg
Ambulatory
190
1
46
30
4.5
51
4:35
Wheelchairbound
190
5
3
15
4.5
60
4:25
Bedridden
190
15
1
15
4.5
60
4:25
HancockGeriatricTreatmentCenter
Ambulatory
190
1
215
30
4.5
51
4:35
Wheelchairbound
190
5
20
100
4.5
12
5:05
Bedridden
190
15
30
30
4.5
51
4:35
ConsulateHealthCare
Wheelchairbound
190
5
43
100
7.2
19
5:10
Bedridden
190
15
44
30
7.2
61
4:45
TheCovalescentatPatriotsColony Williamsburg
Ambulatory
190
1
13
13
4.1
24
3:50
Wheelchairbound
190
5
45
100
4.1
10
5:00
MorningsideofWilliamsburg
Ambulatory
190
1
64
30
6.8
13
3:55
Wheelchairbound
190
5
15
75
6.8
10
4:35
Bedridden
190
15
1
15
6.8
24
3:50
ColonialManorSeniorCommunity
Ambulatory
190
1
29
29
8.0
32
4:15
Wheelchairbound
190
5
25
100
8.0
12
5:05
WoodhavenHallAtWilliamsburg
Ambulatory
190
1
5
5
5.2
74
4:30
Wheelchairbound
190
5
3
15
5.2
61
4:30
Bedridden
190
15
1
15
5.2
61
4:30
St.FrancisNursingCenter
Ambulatory
190
1
57
30
0.6
8
3:50
Wheelchairbound
190
5
37
100
0.6
1
4:55
Bedridden
190
15
11
30
0.6
8
3:50
EnvoyHealthCare
Wheelchairbound
190
5
130
100
6.4
10
5:00
Bedridden
190
15
20
30
6.4
28
4:10
MadisonRetirementCenter
Ambulatory
190
1
65
30
0.8
23
4:05
Wheelchairbound
190
5
10
50
0.8
14
4:15
SpringArborofWilliamsburg
Ambulatory
190
1
46
30
2.5
36
4:20
Wheelchairbound
190
5
4
20
2.5
41
4:15
WindsormeadeofWilliamsburg
Ambulatory
190
1
3
3
3.0
93
4:50
Wheelchairbound
190
5
9
45
3.0
72
5:10
MaximumETE:
5:10
AverageETE:
4:30
SurryPowerStation
848
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table816.MedicalFacilityEvacuationTimeEstimates-Snow
MedicalFacility
Patient
Mobilization
(min)
Loading
Rate
(minper
person)
People
Total
Loading
Time
(min)
Dist.To
EPZ
Bdry
(mi)
TravelTime
toEPZ
Boundary
(min)
ETE
(hr:min)
ChambrelatWilliamsburg
Ambulatory
200
1
46
30
4.5
59
4:50
Wheelchairbound
200
5
3
15
4.5
62
4:40
Bedridden
200
15
1
15
4.5
62
4:40
HancockGeriatricTreatmentCenter
Ambulatory
200
1
215
30
4.5
59
4:50
Wheelchairbound
200
5
20
100
4.5
22
5:25
Bedridden
200
15
30
30
4.5
59
4:50
ConsulateHealthCare
Wheelchairbound
200
5
43
100
7.2
27
5:30
Bedridden
200
15
44
30
7.2
70
5:00
TheCovalescentatPatriotsColony Williamsburg
Ambulatory
200
1
13
13
4.1
29
4:05
Wheelchairbound
200
5
45
100
4.1
16
5:20
MorningsideofWilliamsburg
Ambulatory
200
1
64
30
6.8
12
4:05
Wheelchairbound
200
5
15
75
6.8
12
4:50
Bedridden
200
15
1
15
6.8
15
3:50
ColonialManorSeniorCommunity
Ambulatory
200
1
29
29
8.0
39
4:30
Wheelchairbound
200
5
25
100
8.0
14
5:15
WoodhavenHallAtWilliamsburg
Ambulatory
200
1
5
5
5.2
76
4:45
Wheelchairbound
200
5
3
15
5.2
62
4:40
Bedridden
200
15
1
15
5.2
62
4:40
St.FrancisNursingCenter
Ambulatory
200
1
57
30
0.6
6
4:00
Wheelchairbound
200
5
37
100
0.6
2
5:05
Bedridden
200
15
11
30
0.6
6
4:00
EnvoyHealthCare
Wheelchairbound
200
5
130
100
6.4
11
5:15
Bedridden
200
15
20
30
6.4
41
4:35
MadisonRetirementCenter
Ambulatory
200
1
65
30
0.8
23
4:15
Wheelchairbound
200
5
10
50
0.8
17
4:30
SpringArborofWilliamsburg
Ambulatory
200
1
46
30
2.5
35
4:25
Wheelchairbound
200
5
4
20
2.5
45
4:25
WindsormeadeofWilliamsburg
Ambulatory
200
1
3
3
3.0
97
5:00
Wheelchairbound
200
5
9
45
3.0
92
5:40
MaximumETE:
5:40
AverageETE:
4:45
SurryPowerStation
849
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Table817.HomeboundSpecialNeedsPopulationEvacuationTimeEstimates
VehicleType
People
Requiring
Vehicle
Vehicles
deployed
Stops
Weather
Conditions
Mobiliza tion
Time
(min)
Loading
Timeat
1stStop
(min)
Travelto
Subsequent
Stops(min)
Total
Loading
Timeat
Subsequent
Stops(min)
Travel
Timeto
EPZ
Boundary
(min)
ETE
(hr:min)
Buses
253
30
9
Good
180
5
72
40
24
5:25
Rain
190
80
28
5:45
Snow
200
88
28
6:05
Wheelchair
Buses
95
15
7
Good
180
5
54
30
24
4:55
Rain
190
60
28
5:15
Snow
200
66
28
5:30
MaximumETE:
6:05
AverageETE:
5:30
SurryPowerStation
91
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
9 TRAFFICMANAGEMENTSTRATEGY
Thissectiondiscussesthesuggestedtrafficcontrolandmanagementstrategythatisdesigned
to expedite the movement of evacuating traffic. The resources required to implement this
strategyinclude:
- Personnel with the capabilities of performing the planned control functions of traffic
guides(preferably,notnecessarily,lawenforcementofficers).
- TrafficControlDevicestoassistthesepersonnelintheperformanceoftheirtasks.These
devices should comply with the guidance of the Manual of Uniform Traffic Control
Devices (MUTCD) published by the Federal Highway Administration (FHWA) of the
U.S.D.O.T. All state and most city/county transportation agencies have access to the
MUTCD,whichisavailableonline:http://mutcd.fhwa.dot.govwhichprovidesaccessto
theofficialPDFversion.
- A plan that defines all locations, provides necessary details and is documented in a
formatthatisreadilyunderstoodbythoseassignedtoperformtrafficcontrol.
AllcountiesandcitiesintheSPSEPZhavedetailedevacuationtrafficcontrolplans.AttheAlert
law enforcement personnel would be placed on standby and an assessment made, at the
city/countylevel,astowhethertorequestassistancefromtheStatePolice.Inadditionthe
departmentofPublicWorkswouldbecontactedtodistributetrafficbarriers.TCPsandACPs
willnotbeactivatedunlessanevacuationisordered.IsleofWightandSurryCountiesandthe
CityofNewportNewshaveresponseplansthatdetailwhichTCPstoactivate,dependingonthe
extentoftheevacuation.AtleastoneofficerwillbeassignedtoeachTCP.
Thefunctionstobeperformedinthefieldare:
- 1. FacilitateevacuatingtrafficmovementsthatsafelyexpeditetraveloutoftheEPZ.
- 2. Discouragetrafficmovementsthatmoveevacuatingvehiclesinadirectionwhichtakes
themsignificantlyclosertothepowerplant,orwhichinterfereswiththeefficientflow
ofotherevacuees.
Theterms"facilitate"and"discourage"areemployedratherthan"enforce"and"prohibit"to
indicate the need for flexibility in performing the traffic control function. There are always
legitimatereasonsforadrivertopreferadirectionotherthanthatindicated.Forexample:
- Adrivermaybetravelinghomefromworkorfromanotherlocation,tojoinotherfamily
memberspriortoevacuating.
- Anevacuatingdrivermaybetravellingtopickuparelative,orotherevacuees.
- Thedrivermaybeanemergencyworkerenroutetoperformanimportantactivity.
The implementation of a plan must also be flexible enough for the application of sound
judgmentbythetrafficguide.
SurryPowerStation
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KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Thetrafficmanagementplanistheoutcomeofthefollowingprocess:
- 1. TheexistingTCPsandACPsidentifiedbytheoffsiteagenciesintheirexistingemergency
plansserveasthebasisofthetrafficmanagementplan,asperNUREG/CR7002.
- 2. Computeranalysisoftheevacuationtrafficflowenvironment.
This analysis identifies the best routing and those critical intersections that
experiencepronouncedcongestion.TheexistingTCPsandACPs,andhowthey
wereappliedinthisstudy,arediscussedinAppendixG.
- 3. PrioritizationofTCPsandACPs.
ApplicationoftrafficandaccesscontrolatsomeTCPsandACPswillhaveamore
pronouncedinfluenceonexpeditingtrafficmovementsthanatotherTCPsand
ACPs. These priorities should be assigned by state/county emergency
managementrepresentativesandbylawenforcementpersonnel.
The use of Intelligent Transportation Systems (ITS) technologies (if available) can reduce
manpower and equipment needs, while still facilitating the evacuation process. Dynamic
Message Signs (DMS) can be placed within the EPZ to provide information to travelers
regardingtrafficconditions,routeselection,andevacuationassemblycenterinformation.DMS
canalsobeplacedoutsideoftheEPZtowarnmotoriststoavoidusingroutesthatmayconflict
withtheflowofevacueesawayfromthepowerplant.HighwayAdvisoryRadio(HAR)canbe
used to broadcast information to evacuees en route through their vehicle stereo systems.
Automated Traveler Information Systems (ATIS) can also be used to provide evacuees with
information.Internetwebsitescanprovidetrafficandevacuationrouteinformationbeforethe
evacuee begins their trip, while on board navigation systems (GPS units), cell phones, and
pagerscanbeusedtoprovideinformationenroute.AsdiscussedinSection7andshownin
Figures73through78,northoftheJamesRiver,congestionissustainedlongerforpeople
evacuatingtothenorththantotheeast.Disseminatingsuchinformationintheeventofan
evacuationcouldhelppeopleinthecentralPAZs,particularly18Cand19B,choosethequickest
routeoutoftheEPZ.
TheseareonlyseveralexamplesofhowITStechnologiescanbenefittheevacuationprocess.
Consideration should be given that ITS technologies be used to facilitate the evacuation
process,andanyadditionalsignageplacedshouldconsiderevacuationneeds.
TheETEanalysistreatedallcontrolledintersectionsthatareexistingTCPlocationsintheoffsite
agencyplansasbeingcontrolledbyactuatedsignals.
Chapters2Nand5G,andPart6ofthe2009MUTCDareparticularlyrelevantandshouldbe
reviewedduringemergencyresponsetraining.
TheETEcalculationsreflecttheassumptionthatallexternalexternaltripsareinterdictedand
divertedafter2hourshaveelapsedfromtheATE.
All transit vehicles and other responders entering the EPZ to support the evacuation are
assumedtobeunhinderedbypersonnelmanningACPsandTCPs.
Study Assumptions 5 and 6 in Section 2.3 discuss ACP and TCP staffing schedules and
operations.
SurryPowerStation
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KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
10 EVACUATIONROUTES
Evacuationroutesarecomprisedoftwodistinctcomponents:
- Routing from a PAZ being evacuated to the boundary of the Evacuation Region and
thenceoutoftheEPZ.
- RoutingoftransitdependentevacueesfromtheEPZboundarytoassemblycenters.
EvacueeswillselectrouteswithintheEPZinsuchawayastominimizetheirexposuretorisk.
ThisexpectationismetbytheDYNEVIImodelroutingtrafficawayfromthelocationofthe
plant,totheextentpracticable.TheDTRADmodelsatisfiesthisbehaviorbyroutingtrafficsoas
to balance traffic demand relative to the available highway capacity to the extent possible.
SeeAppendicesBthroughDforfurtherdiscussion.
TheroutingoftransitdependentevacueesfromtheEPZboundarytoassemblycentersorhost
facilitiesisdesignedtominimizetheamountoftraveloutsidetheEPZ,fromthepointswhere
theseroutescrosstheEPZboundary.
Figure 101 presents a map showing the general population Evacuation Assembly Centers
(EACs) and receiving schools for evacuees. The major evacuation routes for the EPZ are
presentedinFigure102.
Itisassumedthatallschoolevacueeswillbetakentotheappropriatereceivingschooland
subsequentlypickedupbyparentsorguardians.Transitdependentevacueesaretransported
to the nearest primary care center for each city/county. This study does not consider the
transport of evacuees from assembly centers to congregate care centers, if the counties do
makethedecisiontorelocateevacuees.
SurryPowerStation
102
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
t
Figure101.GeneralPopulationEvacuationAssemblyCentersandReceivingSchools
SurryPowerStation
103
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Figure102.EvacuationRouteMap
SurryPowerStation
111
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
11 SURVEILLANCEOFEVACUATIONOPERATIONS
Thereisaneedforsurveillanceoftrafficoperationsduringtheevacuation.Thereisalsoaneed
toclearanyblockageofroadwaysarisingfromaccidentsorvehicledisablement.Surveillance
cantakeseveralforms.
- 1. Trafficcontrolpersonnel,locatedatTrafficControlandAccessControlpoints,provide
fixedpointsurveillance.
- 2. Ground patrols may be undertaken along welldefined paths to ensure coverage of
thosehighwaysthatserveasmajorevacuationroutes.
- 3. Aerialsurveillanceofevacuationoperationsmayalsobeconductedusinghelicopteror
fixedwingaircraft,ifavailable.
- 4. Cellularphonecalls(ifcellularcoverageexists)frommotoristsmayalsoprovidedirect
fieldreportsofroadblockages.
- 5. BusdriversareinstructedtoprovidefeedbacktotheTransportationSupervisorabout
anytrafficaccidentsorbreakdownsalongtheirevacuationroutes.
TheseconcurrentsurveillanceproceduresaredesignedtoprovidecoverageoftheentireEPZas
wellastheareaarounditsperiphery.Itistheresponsibilityofthecities/countiestosupportan
emergencyresponsesystemthatcanreceivemessagesfromthefieldandbeinapositionto
respondtoanyreportedproblemsinatimelymanner.Thiscoverageshouldquicklyidentify,
andexpeditetheresponsetoanyblockagecausedbyadisabledvehicle.
TowVehicles
Inalowspeedtrafficenvironment,anyvehicledisablementislikelytoariseduetoalowspeed
collision, mechanical failure or the exhaustion of its fuel supply. In any case, the disabled
vehicle can be pushed onto the shoulder, thereby restoring traffic flow. Past experience in
other emergencies indicates that evacuees who are leaving an area often perform activities
suchaspushingadisabledvehicletothesideoftheroadwithoutprompting.
While the need for tow vehicles is expected to be low under the circumstances described
above,itisstillprudenttobepreparedforsuchaneed.Considerationshouldbegiventhattow
truckswithasupplyofgasolinebedeployedatstrategiclocationswithin,orjustoutside,the
EPZ.Theselocationsshouldbeselectedsothat:
x Theypermitaccesstokey,heavilyloaded,evacuationroutes.
x Responding tow trucks would most likely travel counterflow relative to evacuating
traffic.
Considerationshouldalsobegiventhatthestateandlocalemergencymanagementagencies
encouragegasstationstoremainopenduringtheevacuation.
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12 CONFIRMATIONTIME
Itisnecessarytoconfirmthattheevacuationprocessiseffectiveinthesensethatthepublicis
awareofandiscomplyingwiththeAdvisorytoEvacuate.ThereareareaswithintheSPSEPZ
notcoveredbythesirens,fortheseareasroutealertingprocedureswillbeactivated.Should
proceduresnotalreadyexisttoconfirmaneffectiveevacuation,thefollowingalternativeor
complementaryapproachissuggested.
Thesuggestedprocedureemploysastratifiedrandomsampleandatelephonesurvey.Thesize
ofthesampleisdependentontheexpectednumberofhouseholdsthatdonotcomplywiththe
AdvisorytoEvacuate.Itisreasonabletoassumeforthepurposeofestimatingsamplesizethat
atleast80percentofthepopulationwithintheEPZwillcomplywiththeAdvisorytoEvacuate.
Onthisbasis,ananalysiscouldbeundertaken(seeTable121)toyieldanestimatedsample
sizeofapproximately300.
Theconfirmationprocessshouldstartatabout3hoursaftertheAdvisorytoEvacuate,whichis
when approximately 90 percent of resident evacuees have completed their mobilization
activities (see Table 59). At this time, virtually all evacuees will have departed on their
respectivetripsandthelocaltelephonesystemwillbelargelyfreeoftraffic.
As indicated in Table 121, approximately 71/2 person hours are needed to complete the
telephone survey. If six people are assigned to this task, each dialing a different set of
telephone exchanges (e.g., each person can be assigned a different set of PAZs), then the
confirmationprocesswillextendoveratimeframeofabout75minutes.Thus,theconfirmation
shouldbecompletedbeforetheevacuatedareaiscleared.Ofcourse,fewerpeoplewouldbe
neededforthissurveyiftheEvacuationRegionwereonlyaportionoftheEPZ.Useofmodern
automatedcomputercontrolleddialingequipmentorothertechnologies(e.g.,reverse911or
equivalent if available) can significantly reduce the manpower requirements and the time
requiredtoundertakethistypeofconfirmationsurvey.
Ifthismethodisindeedusedbytheoffsiteagencies,considerationshouldbegiventomaintain
a list of telephone numbers within the EPZ in the EOC at all times. Such a list could be
purchased from vendors and could be periodically updated. As indicated above, the
confirmationprocessshouldnotbeginuntil3hoursaftertheAdvisorytoEvacuate,toensure
that households have had enough time to mobilize. This 3hour timeframe will enable
telephoneoperatorstoarriveattheirworkplace,obtainacalllistandpreparetomakethe
necessaryphonecalls.
Shouldthenumberoftelephoneresponses(i.e.,peoplestillathome)exceed20percent,then
thetelephonesurveyshouldberepeatedafteranhour'sintervaluntiltheconfirmationprocess
iscompleted.
Other techniques could also be considered. After traffic volumes decline, the personnel
manningTCPscanberedeployedtotravelthroughresidentialareastoobserveandtoconfirm
evacuationactivities.
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Table121.EstimatedNumberofTelephoneCallsRequiredforConfirmationofEvacuation
ProblemDefinition
Estimatenumberofphonecalls,n,neededtoascertaintheproportion,Fofhouseholdsthat
havenotevacuated.
Reference:
Burstein,H.,AttributeSampling,McGrawHill,1971
Given:
x No.ofhouseholdsplusotherfacilities,N,withintheEPZ(est.)=61,900
x Est.proportion,F,ofhouseholdsthatwillnotevacuate=0.20
x Allowableerrormargin,e:0.05
x Confidencelevel,:0.95(impliesA=1.96)
ApplyingTable10ofcitedreference,
Finitepopulationcorrection:
Thus,some300telephonecallswillconfirmthatapproximately20percentofthepopulation
hasnotevacuated.Ifonly10percentofthepopulationdoesnotcomplywiththeAdvisoryto
Evacuate,thentherequiredsamplesize,nF=215.
Est.PersonHourstocomplete300telephonecalls
Assume:
x Timetodialusingtouchtone(randomselectionoflistednumbers):30seconds
x Timefor6rings(noanswer):36seconds
x Timefor4ringsplusshortconversation:60sec.
x Intervalbetweencalls:20sec.
PersonHours:
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13 RECOMMENDATIONS
Thefollowingrecommendationsareoffered:
- 1. Examination of the general population ETE in Section 7 shows that the ETE for 100
percentofthepopulationisgenerally11/2to4hourslongerthanfor90percentofthe
population. Specifically, the additional time needed for the last 10 percent of the
populationtoevacuatecanbeasmuchasfourtimesthetimeneededtoevacuate90
percent of the population. There are two contributing factors that lead to this non linearity:
- a. Relativelyfewstragglersrequiresignificantlymoretimetomobilize(i.e.prepare
for the evacuation trip) than their neighbors. This leads to two
recommendations:
- i. Thepublicoutreach(information)programshouldemphasizetheneed
forevacueestominimizethetimeneededtopreparetoevacuate(secure
thehome,assembleneededclothes,medicines,etc.).
ii. The decision makers should reference Table 71 which list the time
needed to evacuate 90 percent of the population, when preparing
recommendedprotectiveactions,asperNUREG/CR7002guidance.
- b. ThereisintenseandprolongedcongestionontheroadwaysexitingtheEPZnorth
ofWilliamsburg.The easternandsoutheasternportions oftheEPZ,although
more heavily populated, benefit from a larger number of higher capacity
roadwaysthanareavailabletothenorthintheWilliamsburgarea.Therefore,
populationsintheeastandnorthnortheastshouldbeencouragedtoevacuate
towardsthesoutheastinordertominimizetheirETEandhelprelievecongestion
intheWilliamsburgarea.
- 2. Stagedevacuationisnotbeneficialduetothelowpopulationwithinthe2mileregionof
theplantandthelimitedtrafficcongestionwithinthisregion.
- 3. ComparisonofScenarios1and14inTable71,aswellastheresultsdisplayedinTable
M5, indicate that a closure of any number of lanes on I64 WB impacts the 90th
percentileETEforthefullEPZwithincreasesof55minutesforasinglelaneclosureand
1:10forafullclosure.Ifanyclosureshouldoccur,theuseoftheshoulderasaslow
movinglaneshouldbeconsidered.
- 4. Countiesshouldimplementprocedureswherebyschoolsarecontactedpriortodispatch
ofbusesfromthedepotstogetanaccuratecountofstudentsneedingtransportation
andthenumberofbusesrequired(SeeSection8).
- 5. Table 85 indicates that there are enough buses and wheelchair buses available to
evacuatethetransitdependentpopulationwithintheEPZinasinglewave;however,
there are not enough ambulances to evacuate the bedridden population in a single
wave.ThesecondwaveETEforambulancesdoexceedthegeneralpopulationETEat
the 90th percentile. Mutual aid agreements with neighboring counties and assistance
fromthestateshouldbeconsideredtoaddresstheshortfallinambulanceresources
(SeeSections8.4and8.5).
- 6. IntelligentTransportationSystems(ITS)suchasDynamicMessageSigns(DMS),Highway
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AdvisoryRadio(HAR),AutomatedTravelerInformationSystems(ATIS),etc.shouldbe
usedtofacilitatetheevacuationprocess(SeeSection9).Theplacementofadditional
signageshouldconsiderevacuationneeds.
- 7. Thecities/countiesshouldestablishstrategiclocationstopositiontowtrucksprovided
withgasolinecontainersintheeventofadisabledvehicleduringtheevacuationprocess
(see Section 11) and should encourage gas stations to remain open during the
evacuation.
- 8. Counties/states should establish a system/procedure to confirm that the Advisory to
Evacuateisbeingadheredto(seetheapproachsuggestedbyKLDinSection12).Should
the approach recommended by KLD in Section 12 be used, consideration should be
giventokeepalistoftelephonenumberswithintheEPZintheEmergencyOperations
Center(EOC)atalltimes.
APPENDIXA
GlossaryofTrafficEngineeringTerms
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Rev.1
A. GLOSSARYOFTRAFFICENGINEERINGTERMS
TableA1.GlossaryofTrafficEngineeringTerms
Term
Definition
AnalysisNetwork
Agraphicalrepresentationofthegeometrictopologyofaphysical
roadway system, which is comprised of directional links and
nodes.
Link
A network link represents a specific, onedirectional section of
roadway. A link has both physical (length, number of lanes,
topology, etc.) and operational (turn movement percentages,
servicerate,freeflowspeed)characteristics.
MeasuresofEffectiveness
Statisticsdescribingtrafficoperationsonaroadwaynetwork.
Node
Anetworknodegenerallyrepresentsanintersectionofnetwork
links. A node has control characteristics, i.e., the allocation of
servicetimetoeachapproachlink.
Origin
Alocationattachedtoanetworklink,withintheEPZorShadow
Region,wheretripsaregeneratedataspecifiedrateinvehicles
perhour(vph).Thesetripsentertheroadwaysystemtotravelto
theirrespectivedestinations.
PrevailingRoadwayand
TrafficConditions
Relatestothephysicalfeaturesoftheroadway,thenature(e.g.,
composition)oftrafficontheroadwayandtheambientconditions
(weather,visibility,pavementconditions,etc.).
ServiceRate
Maximum rate at which vehicles, executing a specific turn
maneuver, can be discharged from a section of roadway at the
prevailing conditions, expressed in vehicles per second (vps) or
vehiclesperhour(vph).
ServiceVolume
Maximum number of vehicles which can pass over a section of
roadway in one direction during a specified time period with
operating conditions at a specified Level of Service (The Service
VolumeattheupperboundofLevelofService,E,equalsCapacity).
ServiceVolumeisusuallyexpressedasvehiclesperhour(vph).
SignalCycleLength
Thetotalelapsedtimetodisplayallsignalindications,insequence.
Thecyclelengthisexpressedinseconds.
SignalInterval
Asinglecombinationofsignalindications.Theintervaldurationis
expressedinseconds.Asignalphaseiscomprisedofasequence
ofsignalintervals,usuallygreen,yellow,red.
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Rev.1
Term
Definition
SignalPhase
A set of signal indications (and intervals) which services a
particular combination of traffic movements on selected
approachestotheintersection.Thephasedurationisexpressed
inseconds.
Traffic(Trip)Assignment
Aprocessofassigningtraffictopathsoftravelinsuchawayasto
satisfyalltripobjectives(i.e.,thedesireofeachvehicletotravel
fromaspecifiedorigininthenetworktoaspecifieddestination)
and to optimize some stated objective or combination of
objectives. In general, the objective is stated in terms of
minimizing a generalized "cost". For example, "cost" may be
expressedintermsoftraveltime.
TrafficDensity
Thenumberofvehiclesthatoccupyonelaneofaroadwaysection
of specified length at a point in time, expressed as vehicles per
mile(vpm).
Traffic(Trip)Distribution
Aprocessfordeterminingthedestinationsofalltrafficgenerated
at the origins. The result often takes the form of a Trip Table,
whichisamatrixoforigindestinationtrafficvolumes.
TrafficSimulation
Acomputermodeldesignedtoreplicatetherealworldoperation
of vehicles on a roadway network, so as to provide statistics
describing traffic performance. These statistics are called
MeasuresofEffectiveness.
TrafficVolume
Thenumberofvehiclesthatpassoverasectionofroadwayinone
direction,expressedinvehiclesperhour(vph).Whereapplicable,
trafficvolumemaybestratifiedbyturnmovement.
TravelMode
Distinguishes between private auto, bus, rail, pedestrian and air
travelmodes.
TripTableorOrigin DestinationMatrix
Arectangularmatrixortable,whoseentriescontainthenumber
oftripsgeneratedateachspecifiedorigin,duringaspecifiedtime
period, that are attracted to (and travel toward) each of its
specifieddestinations.Thesevaluesareexpressedinvehiclesper
hour(vph)orinvehicles.
TurningCapacity
Thecapacityassociatedwiththatcomponentofthetrafficstream
whichexecutesaspecifiedturnmaneuverfromanapproachatan
intersection.
APPENDIXB
DTRAD:DynamicTrafficAssignmentandDistributionModel
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Rev.1
B. DYNAMICTRAFFICASSIGNMENTANDDISTRIBUTIONMODEL
Thissectiondescribestheintegrateddynamictripassignmentanddistributionmodelnamed
DTRAD (Dynamic Traffic Assignment and Distribution) that is expressly designed for use in
analyzingevacuationscenarios.DTRADemployslogitbasedpathchoiceprinciplesandisone
of the models of the DYNEVII System. The DTRAD module implements pathbased Dynamic
TrafficAssignment(DTA)sothattimedependentOriginDestination(OD)tripsareassignedto
routesoverthenetworkbasedonprevailingtrafficconditions.
To apply the DYNEV II System, the analyst must specify the highway network, link capacity
information,thetimevaryingvolumeoftrafficgeneratedatallorigincentroidsand,optionally,
asetofaccessiblecandidatedestinationnodesontheperipheryoftheEPZforselectedorigins.
DTRADcalculatestheoptimaldynamictripdistribution(i.e.,tripdestinations)andtheoptimal
dynamictripassignment(i.e.,triprouting)ofthetrafficgeneratedateachoriginnodetraveling
toitssetofcandidatedestinationnodes,soastominimizeevacueetravelcost.
OverviewofIntegratedDistributionandAssignmentModel
Theunderlyingpremiseisthattheselectionofdestinationsandroutesisintrinsicallycoupledin
anevacuationscenario.Thatis,peopleinvehiclesseektotraveloutofanareaofpotentialrisk
asrapidlyaspossiblebyselectingthebestroutes.Themodelisdesignedtoidentifythese
bestroutesinamannerthatrealisticallydistributesvehiclesfromoriginstodestinationsand
routesthemoverthehighwaynetwork,inaconsistentandoptimalmanner,reflectingevacuee
behavior.
Foreachorigin,asetofcandidatedestinationnodesisselectedbythesoftwarelogicandby
theanalysttoreflectthedesirebyevacueestotravelawayfromthepowerplantandtoaccess
majorhighways.Thespecificdestinationnodeswithinthissetthatareselectedbytravelers
and the selection of the connecting paths of travel, are both determined by DTRAD. This
determinationismadebyalogitbasedpathchoicemodelinDTRAD,soastominimizethetrip
cost,asdiscussedlater.
Thetrafficloadingonthenetworkandtheconsequentoperationaltrafficenvironmentofthe
network(density,speed,throughputoneachlink)varyovertimeastheevacuationtakesplace.
TheDTRADmodel,whichisinterfacedwiththeDYNEVsimulationmodel,executesasuccession
ofsessionswhereinitcomputestheoptimalroutingandselectionofdestinationnodesfor
theconditionsthatexistatthattime.
InterfacingtheDYNEVSimulationModelwithDTRAD
The DYNEV II system reflects NRC guidance that evacuees will seek to travel in a general
direction away from the location of the hazardous event. An algorithm was developed to
supporttheDTRADmodelindynamicallyvaryingtheTripTable(ODmatrix)overtimefrom
oneDTRADsessiontothenext.Anotheralgorithmexecutesamappingfromthespecified
geometricnetwork(linknodeanalysisnetwork)thatrepresentsthephysicalhighwaysystem,
toapathnetworkthatrepresentsthevehicle[turn]movements.DTRADcomputationsare
performedonthepathnetwork:DYNEVsimulationmodel,onthegeometricnetwork.
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Rev.1
DTRADDescription
DTRADistheDTAmodulefortheDYNEVIISystem.
When the road network under study is large, multiple routing options are usually available
betweentriporiginsanddestinations.Theproblemofloadingtrafficdemandsandpropagating
them over the network links is called Network Loading and is addressed by DYNEVII using
macroscopic traffic simulation modeling. Traffic assignment deals with computing the
distributionofthetrafficovertheroadnetworkforgivenODdemandsandisamodelofthe
route choice of the drivers. Travel demand changes significantly over time, and the road
networkmayhavetimedependentcharacteristics,e.g.,timevaryingsignaltimingorreduced
road capacity because of lane closure, or traffic congestion. To consider these time
dependencies,DTAproceduresarerequired.
TheDTRAD DTAmodulerepresentsthedynamicroutechoicebehaviorofdrivers,usingthe
specificationofdynamicorigindestinationmatricesasflowinput.Driverschoosetheirroutes
throughthenetworkbasedonthetravelcosttheyexperience(asdeterminedbythesimulation
model).Thisallowstraffictobedistributedoverthenetworkaccordingtothetimedependent
conditions.ThemodelingprinciplesofDTRADinclude:
x Itisassumedthatdriversnotonlyselectthebestroute(i.e.,lowestcostpath)butsome
alsoselectlessattractiveroutes.ThealgorithmimplementedbyDTRADarchivesseveral
efficientroutesforeachODpairfromwhichthedriverschoose.
x Thechoiceofonerouteoutofasetofpossibleroutesisanoutcomeofdiscretechoice
modeling.Givenasetofroutesandtheirgeneralizedcosts,thepercentagesofdrivers
that choose each route is computed. The most prevalent model for discrete choice
modelingisthelogitmodel.DTRADusesavariantofPathSizeLogitmodel(PSL).PSL
overcomesthedrawbackofthetraditionalmultinomiallogitmodelbyincorporatingan
additional deterministic path size correction term to address path overlapping in the
randomutilityexpression.
x DTRAD executes the TA algorithm on an abstract network representation called "the
pathnetwork"whichisbuiltfromtheactualphysicallinknodeanalysisnetwork.This
executioncontinuesuntilastablesituationisreached:thevolumesandtraveltimeson
the edges of the path network do not change significantly from one iteration to the
next.Thecriteriaforthisconvergencearedefinedbytheuser.
x Travel cost plays a crucial role in route choice. In DTRAD, path cost is a linear
summationofthegeneralizedcostofeachlinkthatcomprisesthepath.Thegeneralized
costforalink,a,isexpressedas
a a
a a
c t
l s
D E
J
,
where ac isthegeneralizedcostforlinka,andD,E,andJ arecostcoefficientsforlink
traveltime,distance,andsupplementalcost,respectively.Distanceandsupplemental
costsaredefinedasinvariantpropertiesofthenetworkmodel,whiletraveltimeisa
dynamicpropertydictatedbyprevailingtrafficconditions.TheDYNEVsimulationmodel
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Rev.1
computestraveltimesonalledgesinthenetworkandDTRADusesthatinformationto
constantly update the costs of paths. The route choice decision model in the next
simulationiterationusestheseupdatedvaluestoadjusttheroutechoicebehavior.This
way,trafficdemandsaredynamicallyreassignedbasedontimedependentconditions.
TheinteractionbetweentheDTRADtrafficassignmentandDYNEVIIsimulationmodels
isdepictedinFigureB1.EachroundofinteractioniscalledaTrafficAssignmentSession
(TAsession).ATAsessioniscomposedofmultipleiterations,markedasloopBinthe
figure.
x The supplemental cost is based on the survival distribution (a variation of the
exponential distribution).The Inverse Survival Function is a cost term in DTRAD to
representthepotentialriskoftraveltowardtheplant:
sa=ln(p),0pl;0
p=
dn=Distanceofnode,n,fromtheplant
d0=Distancefromtheplantwherethereiszerorisk
=Scalingfactor
The value of do = 15 miles, the outer distance of the shadow region. Note that the
supplementalcost,sa,oflink,a,is(high,low),ifitsdownstreamnode,n,is(near,farfrom)the
powerplant.
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Rev.1
NetworkEquilibrium
In1952,JohnWardropwrote:
Underequilibriumconditionstrafficarrangesitselfincongestednetworksinsuchaway
thatnoindividualtripmakercanreducehispathcostsbyswitchingroutes.
TheabovestatementdescribestheUserEquilibriumdefinition,alsocalledtheSelfishDriver
Equilibrium.Itisahypothesisthatrepresentsa[hopeful]conditionthatevolvesovertimeas
drivers search out alternative routes to identify those routes that minimize their respective
costs.Ithasbeenfoundthatthisequilibriumobjectivetominimizecostsislargelyrealized
bymostdriverswhoroutinelytakethesametripoverthesamenetworkatthesametime(i.e.,
commuters).Effectively,suchdriverslearnwhichroutesarebestforthemovertime.Thus,
thetrafficenvironmentsettlesdowntoanearequilibriumstate.
Clearly,sinceanemergencyevacuationisasudden,uniqueevent,itdoesnotconstitutealong termlearningexperiencewhichcanachieveanequilibriumstate.Consequently,DTRADwas
not designed as an equilibrium solution, but to represent drivers in a new and unfamiliar
situation, who respond in a flexible manner to realtime information (either broadcast or
observed)insuchawayastominimizetheirrespectivecostsoftravel.
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Rev.1
FigureB1.FlowDiagramofSimulationDTRADInterface
StartofnextDTRADSession Set Clocktime.
ArchiveSystemStateat
DefinelatestLinkTurn
Percentages
ExecuteSimulationModelfrom
time, (burntime)
ProvideDTRADwithlinkMOEat
time,
ExecuteDTRADiteration; GetnewTurnPercentages
RetrieveSystemStateat ;
ApplynewLinkTurnPercents
DTRADiterationconverges?
Nextiteration Simulatefrom
(DTAsessionduration)
SetClockto
A
B
A Yes No B
APPENDIXC
DYNEVTrafficSimulationModel
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EvacuationTimeEstimate
Rev.1
C. DYNEVTRAFFICSIMULATIONMODEL
TheDYNEVtrafficsimulationmodelisamacroscopicmodelthatdescribestheoperationsof
trafficflowintermsofaggregatevariables:vehicles,flowrate,meanspeed,volume,density,
queuelength,oneachlink,foreachturnmovement,duringeachTimeInterval(simulationtime
step).ThemodelgeneratestripsfromsourcesandfromEntryLinksandintroducesthem
onto the analysis network at rates specified by the analyst based on the mobilization time
distributions.Themodelsimulatesthemovementsofallvehiclesonallnetworklinksovertime
untilthenetworkisempty.Atintervals,themodeloutputsMeasuresofEffectiveness(MOE)
suchasthoselistedinTableC1.
ModelFeaturesInclude:
x Explicitconsiderationistakenofthevariationindensityoverthetimestep;aniterative
procedureisemployedtocalculateanaveragedensityoverthesimulationtimestepfor
thepurposeofcomputingameanspeedformovingvehicles.
x Multipleturnmovementscanbeservicedononelink;aseparatealgorithmisusedto
estimatethenumberof(fractional)lanesassignedtothevehiclesperformingeachturn
movement,based,inpart,ontheturnpercentagesprovidedbytheDTRADmodel.
x Atanypointintime,trafficflowonalinkissubdividedintotwoclassifications:queued
andmovingvehicles.Thenumberofvehiclesineachclassificationiscomputed.Vehicle
spillback,stratifiedbyturnmovementforeachnetworklink,isexplicitlyconsideredand
quantified.Thepropagationofstoppingwavesfromlinktolinkiscomputedwithineach
timestepofthesimulation.Thereisnoverticalstackingofqueuesonalink.
x Any link can accommodate source flow from zones via side streets and parking
facilitiesthatarenotexplicitlyrepresented.Thisflowrepresentstheevacuatingtrips
thataregeneratedatthesource.
x Therelationbetweenthenumberofvehiclesoccupyingthelinkanditsstoragecapacity
is monitored every time step for every link and for every turn movement. If the
available storage capacity on a link is exceeded by the demand forservice, then the
simulator applies a metering rate to the entering traffic from both the upstream
feedersandsourcenodetoensurethattheavailablestoragecapacityisnotexceeded.
x Apathnetworkthatrepresentsthespecifiedtrafficmovementsfromeachnetwork
linkisconstructedbythemodel;thispathnetworkisutilizedbytheDTRADmodel.
x AtwowayinterfacewithDTRAD:(1)provideslinktraveltimes;(2)receivesdatathat
translatesintolinkturnpercentages.
x ProvidesMOEtoanimationsoftware,EVAN
x CalculatesETEstatistics
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Alltrafficsimulationmodelsaredataintensive.TableC2outlinesthenecessaryinputdata
elements.
To provide an efficient framework for defining these specifications, the physical highway
environmentisrepresentedasanetwork.Theunidirectionallinksofthenetworkrepresent
roadway sections: rural, multilane, urban streets or freeways. The nodes of the network
generallyrepresentintersectionsorpointsalongasectionwhereageometricpropertychanges
(e.g.alanedrop,changeingradeorfreeflowspeed).
FigureC1isanexampleofasmallnetworkrepresentation.Thefreewayisdefinedbythe
sequenceoflinks,(20,21),(21,22),and(22,23).Links(8001,19)and(3,8011)areEntryandExit
links,respectively.Anarterialextendsfromnode3tonode19andispartiallysubsumedwithin
agridnetwork.Notethatlinks(21,22)and(17,19)aregradeseparated.
TableC1.SelectedMeasuresofEffectivenessOutputbyDYNEVII
Measure
Units
AppliesTo
VehiclesDischarged
Vehicles
Link,Network,ExitLink
Speed
Miles/Hours(mph)
Link,Network
Density
Vehicles/Mile/Lane
Link
LevelofService
LOS
Link
Content
Vehicles
Network
TravelTime
Vehiclehours
Network
EvacuatedVehicles
Vehicles
Network,ExitLink
TripTravelTime
Vehicleminutes/trip
Network
CapacityUtilization
Percent
ExitLink
Attraction
Percentoftotalevacuatingvehicles
ExitLink
MaxQueue
Vehicles
Node,Approach
TimeofMaxQueue
Hours:minutes
Node,Approach
RouteStatistics
Length(mi);MeanSpeed(mph);Travel
Time(min)
Route
MeanTravelTime
Minutes
EvacuationTrips;Network
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TableC2.InputRequirementsfortheDYNEVIIModel
HIGHWAYNETWORK
x Linksdefinedbyupstreamanddownstreamnodenumbers
x Linklengths
x Numberoflanes(upto9)andchannelization
x Turnbays(1to3lanes)
x Destination(exit)nodes
x Networktopologydefinedintermsofdownstreamnodesforeachreceivinglink
x NodeCoordinates(X,Y)
x NuclearPowerPlantCoordinates(X,Y)
GENERATEDTRAFFICVOLUMES
x Onallentrylinksandsourcenodes(origins),byTimePeriod
TRAFFICCONTROLSPECIFICATIONS
x Trafficsignals:linkspecific,turnmovementspecific
x Signalcontroltreatedasfixedtimeoractuated
x Locationoftrafficcontrolpoints(thesearerepresentedasactuatedsignals)
x StopandYieldsigns
x Rightturnonred(RTOR)
x Routediversionspecifications
x Turnrestrictions
x Lanecontrol(e.g.laneclosure,movementspecific)
DRIVERSANDOPERATIONALCHARACTERISTICS
x Drivers(vehiclespecific)responsemechanisms:freeflowspeed,dischargeheadway
x Busroutedesignation.
DYNAMICTRAFFICASSIGNMENT
x Candidatedestinationnodesforeachorigin(optional)
x DurationofDTAsessions
x Durationofsimulationburntime
x Desirednumberofdestinationnodesperorigin
INCIDENTS
x IdentifyandScheduleofclosedlanes
x IdentifyandScheduleofclosedlinks
SurryPowerStation
C4
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureC1.RepresentativeAnalysisNetwork
8001 8011 3
6 9
12 14 15 16 19 17 2
8107 8
8012 13 22 8009 8010 8005 23 8003 8104 5
10 11 8014 25 24 21 8008 8007 8006 8004 8024 20 8002 Entry,ExitNodesare
numbered8xxx
SurryPowerStation
C5
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
C.1 Methodology
C.1.1 TheFundamentalDiagram
Itisnecessarytodefinethefundamentaldiagramdescribingflowdensityandspeeddensity
relationships. Rather than settling for a triangular representation, a more realistic
representation that includes a capacity drop, (IR) at the critical density when flow
conditions enter the forced flow regime, is developed and calibrated for each link. This
representation,showninFigureC2,assertsaconstantfreespeeduptoadensity,,andthen
alinearreductioninspeedintherange, thedensityatcapacity.Inthe
flowdensityplane,aquadraticrelationshipisprescribedintherange,
whichroughlyrepresentsthestopandgoconditionofseverecongestion.Thevalueofflow
rate, corresponding to is approximated at A linear relationship
betweencompletesthediagramshowninFigureC2.TableC3isaglossaryofterms.
Thefundamentaldiagramisappliedtomovingtrafficoneverylink.Thespecifiedcalibration
values for each link are: (1) Free speed,; (2) Capacity, ; (3) Critical density,
(4)CapacityDropFactor,R=0.9;(5)Jamdensity,Then,
Setting then
for Itcanbe
shownthat
C.1.2 TheSimulationModel
Thesimulationmodelsolvesasequenceofunitproblems.Eachunitproblemcomputesthe
movementoftrafficonalink,foreachspecifiedturnmovement,overaspecifiedtimeinterval
(TI)whichservesasthesimulationtimestepforalllinks.FigureC3isarepresentationofthe
unitprobleminthetimedistanceplane.TableC3isaglossaryoftermsthatarereferencedin
thefollowingdescriptionoftheunitproblemprocedure.
SurryPowerStation
C6
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureC2.FundamentalDiagrams
FigureC3.AUNITProblemConfigurationwitht1>0
me
Distance
Down
Up
SurryPowerStation
C7
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
TableC3.Glossary
Cap
Themaximumnumberofvehicles,ofaparticularmovement,thatcandischarge
fromalinkwithinatimeinterval.
E
Thenumberofvehicles,ofaparticularmovement,thatenterthelinkoverthe
timeinterval.Theportion,ETI,canreachthestopbarwithintheTI.
G/C
The green time: cycle time ratio that servicesthe vehicles of a particular turn
movementonalink.
h
Themeanqueuedischargeheadway,seconds.
k
Densityinvehiclesperlanepermile.
TheaveragedensityofmovingvehiclesofaparticularmovementoveraTI,ona
link.
L
Thelengthofthelinkinfeet.
Thequeuelengthinfeetofaparticularmovement,atthe[beginning,end]ofa
timeinterval.
LN
Thenumberoflanes,expressedasafloatingpointnumber,allocatedtoservicea
particularmovementonalink.
Themeaneffectivelength ofaqueuedvehicleincludingthevehiclespacing,feet.
M
Meteringfactor(Multiplier):1.
Thenumberofmovingvehiclesonthelink,ofaparticularmovement,thatare
movingatthe[beginning,end]ofthetimeinterval.Thesevehiclesareassumed
tobeofequalspacing,overthelengthoflinkupstreamofthequeue.
O
Thetotalnumberofvehiclesofaparticularmovementthataredischargedfroma
linkoveratimeinterval.
Thecomponentsofthevehiclesofaparticularmovementthataredischarged
fromalinkwithinatimeinterval:vehiclesthatwereQueuedatthebeginningof
the TI; vehicles that were Moving within the link at the beginning of the TI;
vehiclesthatEnteredthelinkduringtheTI.
The percentage, expressed as a fraction, of the total flow on the link that
executesaparticularturnmovement,x.
SurryPowerStation
C8
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Thenumberofqueuedvehiclesonthelink,ofaparticularturnmovement,atthe
[beginning,end]ofthetimeinterval.
Themaximumflowratethatcanbeservicedbyalinkforaparticularmovement
intheabsenceofacontroldevice.Itisspecifiedbytheanalystasanestimateof
linkcapacity,baseduponafieldsurvey,withreferencetotheHCM.
R
The factor that is applied to the capacity of a link to represent the capacity
drop when the flow condition moves into the forced flow regime. The lower
capacityatthatpointisequalto .
RCap
The remaining capacity available to service vehicles of a particular movement
afterthatqueuehasbeencompletelyserviced,withinatimeinterval,expressed
asvehicles.
Servicerateformovementx,vehiclesperhour(vph).
Vehiclesofaparticularturnmovementthatenteralinkoverthefirstseconds
of a time interval, can reach the stopbar (in the absence of a queue down stream)withinthesametimeinterval.
TI
Thetimeinterval,inseconds,whichisusedasthesimulationtimestep.
v
Themeanspeedoftravel,infeetpersecond(fps)ormilesperhour(mph),of
movingvehiclesonthelink.
Themeanspeedofthelastvehicleinaqueuethatdischargesfromthelinkwithin
theTI.Thisspeeddiffersfromthemeanspeedofmovingvehicles,v.
W
The width of the intersection in feet. This is the difference between the link
lengthwhichextendsfromstopbartostopbarandtheblocklength.
SurryPowerStation
C9
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
The formulation and the associated logic presented below are designed to solve the unit
problemforeachsweepoverthenetwork(discussedbelow),foreachturnmovementserviced
oneachlinkthatcomprisestheevacuationnetwork,andforeachTIoverthedurationofthe
evacuation.
- 1. Forthefirstsweep,s=1,ofthisTI,getinitialestimatesofmeandensity,theR-factor,
andenteringtraffic,usingthevaluescomputedforthefinalsweepofthepriorTI.
Foreachsubsequentsweep,
arethe
relevantturnpercentagesfromfeederlink,i,anditstotaloutflow(possiblymetered)over
thisTI;Sisthetotalsourceflow(possiblymetered)duringthecurrentTI.
Setiterationcounter,n=0,
- 2. usingtheanalyticalrepresentationsofthe
fundamentaldiagram.
- 3.
- 4.
- 5.
Endif
- 6.
- 7.
SurryPowerStation
C10
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
9.
10.
Endif
Endif
Endif
- 11.
where=densityatthebeginningoftheTI
=densityattheendoftheTI
=densityatthemidpointoftheTI
Allvaluesofdensityapplyonlytothemovingvehicles.
SurryPowerStation
C11
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
TI
t3
Qe
t1
L3
v
Qe v
vQ
Qb
Mb
- 12.
Endif
Computation of unit problem is now complete. Check for excessive inflow causing
spillback.
- 13.
The number of excess vehicles that cause spillback is:
where W is the width of the upstream intersection. To prevent spillback, meter the
outflowfromthefeederapproachesandfromthesourceflow,S,duringthisTIbythe
amount,SB.Thatis,set
Thismeteringfactorisassignedappropriatelytoallfeederlinksandtothesourceflow,tobe
appliedduringthenextnetworksweep,discussedlater.
AlgorithmA
ThisanalysisaddressestheflowenvironmentoveraTIduringwhichmovingvehiclescan
join a standing or discharging queue. For the case
shown,
a
queue
of
length,
formed by that portion of
that reaches the stopbar within the TI, but could
not discharge due to inadequate capacity. That is,
This
queue
length,
canbeextendedto
bytrafficenteringtheapproachduringthecurrent
TI,travelingatspeed,v,andreachingtherearofthe
queue within the TI. A portion of the entering
vehicles,
willlikelyjointhequeue.This
analysis calculates for the input
valuesofL,TI,v,E,t,,LN,
.
Recognizingthat
thefirsttwotermsontherighthandsidecancel,solvefortoobtain:
SurryPowerStation
C12
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Ifthedenominator,
The complete Algorithm A considers all flow scenarios; space limitation precludes its
inclusion,here.
C.1.3 LaneAssignment
Theunitproblemissolvedforeachturnmovementoneachlink.Thereforeitisnecessaryto
calculateavalue,ofallocatedlanesforeachmovement,x.Ifinfactalllanesarespecified
by,say,arrowspaintedonthepavement,eitherasfulllanesoraslaneswithinaturnbay,then
theproblemisfullydefined.Ifhoweverthereremainunchannelizedlanesonalink,thenan
analysisisundertakentosubdividethenumberofthesephysicallanesintoturn movement
specificvirtuallanes,LNx.
C.2 Implementation
C.2.1 ComputationalProcedure
ThecomputationalprocedureforthismodelisshownintheformofaflowdiagramasFigure
C4. As discussed earlier, the simulation model processes traffic flow for each link
independentlyoverTIthattheanalystspecifies;itisusually60secondsorlonger.Thefirststep
istoexecuteanalgorithmtodefinethesequenceinwhichthenetworklinksareprocessedso
thatasmanylinksaspossibleareprocessedaftertheirfeederlinksareprocessed,withinthe
samenetworksweep.Sinceageneralnetworkwillhavemanyclosedloops,itisnotpossibleto
guaranteethateverylinkprocessedwillhaveallofitsfeederlinksprocessedearlier.
Theprocessingthencontinuesasasuccessionoftimestepsofduration,TI,untilthesimulation
is completed. Within each time step, the processing performs a series of sweeps over all
networklinks;thisisnecessarytoensurethatthetrafficflowissynchronousovertheentire
network.Specifically,thesweepensurescontinuityofflowamongallthenetworklinks;inthe
contextofthismodel,thismeansthatthevaluesofE,M,andSarealldefinedforeachlinksuch
thattheyrepresentthesynchronousmovementoftrafficfromeachlinktoallofitsoutbound
links.Thesesweepsalsoservetocomputethemeteringratesthatcontrolspillback.
Withineachsweep,processingsolvestheunitproblemforeachturnmovementoneachlink.
WiththeturnmovementpercentagesforeachlinkprovidedbytheDTRADmodel,analgorithm
SurryPowerStation
C13
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
allocatesthenumberoflanestoeachmovementservicedoneachlink.Thetimingatasignal,if
any,appliedatthedownstreamendofthelink,isexpressedasaG/Cratio,thesignaltiming
needed to define this ratio is an input requirement for the model. The model also has the
capabilityofrepresenting,withmacroscopicfidelity,theactionsofactuatedsignalsresponding
tothetimevaryingcompetingdemandsontheapproachestotheintersection.
Thesolutionoftheunitproblemyieldsthevaluesofthenumberofvehicles,O,thatdischarge
fromthelinkoverthetimeintervalandthenumberofvehiclesthatremainonthelinkatthe
end of the time interval as stratified by queued and moving vehicles: The
procedure considers each movement separately (multipiping). After all network links are
processed for a given network sweep, the updated consistent values of entering flows, E;
meteringrates,M;andsourceflows,Saredefinedsoastosatisfythenospillbackcondition.
The procedure then performs the unit problem solutions for all network links during the
followingsweep.
Experiencehasshownthatthesystemconverges(i.e.thevaluesofE,MandSsettledownfor
allnetworklinks)injusttwosweepsifthenetworkisentirelyundersaturatedorinfoursweeps
inthepresenceofextensivecongestionwithlinkspillback.(Theinitialsweepovereachlink
usesthefinalvaluesofEandM,ofthepriorTI).AtthecompletionofthefinalsweepforaTI,
the procedure computes and stores all measures of effectiveness for each link and turn
movementforoutputpurposes.Itthenpreparesforthefollowingtimeintervalbydefiningthe
valuesofforthestartofthenextTIasbeingthosevaluesofattheend
ofthepriorTI.Inthismanner,thesimulationmodelprocessesthetrafficflowovertimeuntil
theendoftherun.Notethatthereisnospacediscretizationotherthanthespecificationof
networklinks.
SurryPowerStation
C14
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureC4.FlowofSimulationProcessing(SeeGlossary:TableC3)
SequenceNetworkLinks NextTimestep,ofduration,TI Nextsweep;DefineE,M,Sforall
Links NextLink NextTurnMovement,x Getlanes,
ServiceRate,;
GetinputstoUnitProblem:
,E
SolveUnitProblem:
LastMovement?
LastLink?
LastSweep?
Calc.,storeallLinkMOE SetupnextTI:
LastTime- step?
DONE A
B
C
D
D
C
B
A
No No No No Yes Yes Yes Yes
SurryPowerStation
C15
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
C.2.2 InterfacingwithDynamicTrafficAssignment(DTRAD)
The DYNEV II system reflects NRC guidance that evacuees will seek to travel in a general
directionawayfromthelocationofthehazardousevent.Thus,analgorithmwasdevelopedto
identifyanappropriatesetofdestinationnodesforeachoriginbasedonitslocationandonthe
expected direction of travel. This algorithm also supports the DTRAD model in dynamically
varyingtheTripTable(ODmatrix)overtimefromoneDTRADsessiontothenext.
FigureB1depictstheinteractionofthesimulationmodelwiththeDTRADmodelintheDYNEV
IIsystem.Asindicated,DYNEVIIperformsasuccessionofDTRADsessions;eachsuchsession
computestheturnlinkpercentagesforeachlinkthatremainconstantforthesessionduration,
specifiedbytheanalyst.Theendproductistheassignmentoftrafficvolumesfrom
each origin to paths connecting it with its destinations in such a way as to minimize the
networkwide cost function. The output of the DTRAD model is a set of updated link turn
percentageswhichrepresentthisassignmentoftraffic.
AsindicatedinFigureB1,thesimulationmodelsupportstheDTRADsessionbyprovidingit
with operational link MOE that are needed by the path choice model and included in the
DTRAD cost function. These MOE represent the operational state of the network at a time,
which lies within the session duration, . This burn time, is
selectedbytheanalyst.ForeachDTRADiteration,thesimulationmodelcomputesthechange
in network operations over this burn timeusing the latest set of link turn percentages
computed by the DTRAD model. Upon convergence of the DTRAD iterative procedure, the
simulationmodelacceptsthelatestturnpercentagesprovidedbytheDTAmodel,returnsto
theorigintime,andexecutesuntilitarrivesattheendoftheDTRADsessiondurationat
time,AtthistimethenextDTAsessionislaunchedandthewholeprocessrepeatsuntilthe
endoftheDYNEVIIrun.
AdditionaldetailsarepresentedinAppendixB.
APPENDIXD
DetailedDescriptionofStudyProcedure
SurryPowerStation
D1
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
D. DETAILEDDESCRIPTIONOFSTUDYPROCEDURE
This appendix describes the activities that were performed to compute Evacuation Time
Estimates.TheindividualstepsofthiseffortarerepresentedasaflowdiagraminFigureD1.
Eachnumberedstepinthedescriptionthatfollowscorrespondstothenumberedelementin
theflowdiagram.
Step1
ThefirstactivitywastoobtainEPZboundaryinformationandcreateaGISbasemap.Thebase
mapextendsbeyondtheShadowRegionwhichextendsapproximately15miles(radially)from
thepowerplantlocation.Thebasemapincorporatesthelocalroadwaytopology,asuitable
topographicbackgroundandtheEPZboundary.
Step2
2010 Census block information was obtained in GIS format. This information was used to
estimatetheresidentpopulationwithintheEPZandShadowRegionandtodefinethespatial
distributionanddemographiccharacteristicsofthepopulationwithinthestudyarea.Employee
data were estimated using the U.S. Census Bureaus Longitudinal EmployerHousehold
Dynamicsinteractivewebsite1,andfromphonecallstomajoremployers.Transientdatawere
obtainedfromlocal/stateemergencymanagementagenciesandfromphonecallstotransient
attractions.Informationconcerningschools,medicalandothertypesofspecialfacilitieswithin
theEPZwasobtainedfromcountyandmunicipalsources,augmentedbytelephonecontacts
withtheidentifiedfacilities.
Step3
A kickoff meeting was conducted with major stakeholders (state and local emergency
managers, onsite and offsite utility emergency managers, local and state law enforcement
agencies).Thepurposeofthekickoffmeetingwastopresentanoverviewoftheworkeffort,
identify key agency personnel, and indicate the data requirements for the study. Specific
requestsforinformationwerepresentedtolocalemergencymanagers.Uniquefeaturesofthe
studyareawerediscussedtoidentifythelocalconcernsthatshouldbeaddressedbytheETE
study.
Step4
Next,aphysicalsurveyoftheroadwaysysteminthestudyareawasconductedtodetermine
thegeometricpropertiesofthehighwaysections,thechannelizationoflanesoneachsection
of roadway, whether there are any turn restrictions or special treatment of traffic at
intersections,thetypeandfunctioningoftrafficcontroldevices,gatheringsignaltimingsfor
pretimedtrafficsignals,andtomakethenecessaryobservationsneededtoestimaterealistic
valuesofroadwaycapacity.
1http://lehdmap.did.census.gov/
SurryPowerStation
D2
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Step5
A telephone survey of households within the EPZ was conducted to identify household
dynamics,tripgenerationcharacteristics,andevacuationrelateddemographicinformationof
theEPZpopulation.Thisinformationwasusedtodetermineimportantstudyfactorsincluding
theaveragenumberofevacuatingvehiclesusedbyeachhousehold,andthetimerequiredto
performpreevacuationmobilizationactivities.
Step6
A computerized representation of the physical roadway system, called a linknode analysis
network,wasdevelopedusingtheUNITESsoftwaredevelopedbyKLD.Oncethegeometryof
thenetworkwascompleted,thenetworkwascalibratedusingtheinformationgatheredduring
the road survey (Step4). Estimates of highway capacity for each link and otherlinkspecific
characteristicswereintroducedtothenetworkdescription.Trafficsignaltimingswereinput
accordingly.ThelinknodeanalysisnetworkwasimportedintoaGISmap.2010Censusdata
were overlaid in the map, and origin centroids where trips would be generated during the
evacuationprocesswereassignedtoappropriatelinks.
Step7
TheEPZissubdividedinto30PAZs.Basedonwinddirectionandspeed,Regions(groupingsof
PAZs)thatmaybeadvisedtoevacuate,weredeveloped.
The need for evacuation can occur over a range of timeofday, dayofweek, seasonal and
weatherrelatedconditions.Scenariosweredevelopedtocapturethevariationinevacuation
demand,highwaycapacityandmobilizationtime,fordifferenttimeofday,dayoftheweek,
timeofyear,andweatherconditions.
Step8
TheinputstreamfortheDYNEVIImodel,whichintegratesthedynamictrafficassignmentand
distributionmodel,DTRAD,withtheevacuationsimulationmodel,wascreatedforaprototype
evacuationcase-theevacuationoftheentireEPZforarepresentativescenario.
Step9
After creating this input stream, the DYNEV II System was executed on the prototype
evacuationcasetocomputeevacuatingtrafficroutingpatternsconsistentwiththeappropriate
NRC guidelines. DYNEV II contains an extensive suite of data diagnostics which check the
completenessandconsistencyoftheinputdataspecified.Theanalystreviewsallwarningand
error messages produced by the model and then corrects the database to create an input
streamthatproperlyexecutestocompletion.
The model assigns destinations to all origin centroids consistent with a (general) radial
evacuation of the EPZ and Shadow Region. The analyst may optionally supplement and/or
replacethesemodelassigneddestinations,basedonprofessionaljudgment,afterstudyingthe
topology of the analysis highway network. The model produces link and networkwide
measuresofeffectivenessaswellasestimatesofevacuationtime.
SurryPowerStation
D3
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Step10
The results generated by the prototype evacuation case are critically examined. The
examination includes observing the animated graphics (using the EVAN software which
operatesondataproducedbyDYNEVII)andreviewingthestatisticsoutputbythemodel.This
isalaborintensiveactivity,requiringthedirectparticipationofskilledengineerswhopossess
thenecessarypracticalexperiencetointerprettheresultsandtodeterminethecausesofany
problemsreflectedintheresults.
Essentially, the approach is to identify those bottlenecks in the network that represent
locations where congested conditions are pronounced and to identify the cause of this
congestion.Thiscausecantakemanyforms,eitherasexcessdemandduetohighratesoftrip
generation,improperrouting,ashortfallofcapacity,orasaquantitativeflawinthewaythe
physical system was representedin the input stream. This examination leads to one of two
conclusions:
x Theresultsaresatisfactory;or
x Theinputstreammustbemodifiedaccordingly.
Thisdecisionrequires,ofcourse,theapplicationoftheuser'sjudgmentandexperiencebased
upontheresultsobtainedinpreviousapplicationsofthemodelandacomparisonoftheresults
of the latest prototype evacuation case iteration with the previous ones. If the results are
satisfactoryintheopinionoftheuser,thentheprocesscontinueswithStep13.Otherwise,
proceedtoStep11.
Step11
There are many "treatments" available to the user in resolving apparent problems. These
treatments range from decisions to reroute the traffic by assigning additional evacuation
destinations for one or more sources, imposing turn restrictions where they can produce
significantimprovementsincapacity,changingthecontroltreatmentatcriticalintersectionsso
as to provide improved service for one or more movements, or in prescribing specific
treatmentsforchannelizingtheflowsoastoexpeditethemovementoftrafficalongmajor
roadwaysystems.Such"treatments"taketheformofmodificationstotheoriginalprototype
evacuationcaseinputstream.Alltreatmentsaredesignedtoimprovetherepresentationof
evacuationbehavior.
Step12
As noted above, the changes to the input stream must be implemented to reflect the
modificationsundertakeninStep11.Atthecompletionofthisactivity,theprocessreturnsto
Step9wheretheDYNEVIISystemisagainexecuted.
Step13
Evacuationoftransitdependentevacueesandspecialfacilitiesareincludedintheevacuation
analysis.Fixedroutingfortransitbusesandforschoolbuses,ambulances,andothertransit
vehiclesareintroducedintothefinalprototypeevacuationcasedataset.DYNEVIIgenerates
routespecificspeedsovertimeforuseintheestimationofevacuationtimesforthetransit
SurryPowerStation
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KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
dependentandspecialfacilitypopulationgroups.
Step14
Theprototypeevacuationcasewasusedasthebasisforgeneratingallregionandscenario specificevacuationcasestobesimulated.ThisprocesswasautomatedthroughtheUNITESuser
interface. For each specific case, the population to be evacuated, the trip generation
distributions,thehighwaycapacityandspeeds,andotherfactorsareadjustedtoproducea
customizedcasespecificdataset.
Step15
AllevacuationcasesareexecutedusingtheDYNEVIISystemtocomputeETE.Onceresultswere
available,qualitycontrolprocedureswereusedtoassuretheresultswereconsistent,dynamic
routingwasreasonable,andtrafficcongestion/bottleneckswereaddressedproperly.
Step16
Oncevehicularevacuationresultsareaccepted,averagetravelspeedsfortransitandspecial
facility routes were used to compute evacuation time estimates for transitdependent
permanentresidents,schools,hospitals,andotherspecialfacilities.
Step17
The simulation results are analyzed, tabulated and graphed. The results were then
documented,asrequiredbyNUREG/CR7002.
Step18
Followingthecompletionofdocumentationactivities,theETEcriteriachecklist(seeAppendix
N)wascompleted.Anappropriatereportreferenceisprovidedforeachcriterionprovidedin
thechecklist.
SurryPowerStation
D5
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureD1.FlowDiagramofActivities
CreateGISBaseMap GatherCensusBlockandDemographicDatafor
StudyArea FieldSurveyofRoadwayswithinStudyArea ConductKickoffMeetingwithStakeholders CreateandCalibrateLinkNodeAnalysisNetwork DevelopEvacuationRegionsandScenarios CreateandDebugDYNEVIIInputStream ConductTelephoneSurveyandDevelopTrip
GenerationCharacteristics ExecuteDYNEVIIforPrototypeEvacuationCase B
A Step1 Step2 Step3 Step4 Step5 Step6 Step7 Step8 Step9 ExamineResultsofPrototypeEvacuationCase
usingEVANand
DYNEVIIOutput ModifyEvacuationDestinationsand/orDevelop
TrafficControlTreatments A
B ModifyDatabasetoReflectChangestoPrototype
EvacuationCase EstablishTransitandSpecialFacilityEvacuation
RoutesandUpdateDYNEVIIDatabase
GenerateDYNEVIIInputStreamsforAll
EvacuationCases ExecuteDYNEVIItoComputeETEforAll
EvacuationCases UseDYNEVIIAverageSpeedOutputtoCompute
ETEforTransitandSpecialFacilityRoutes Documentation CompleteETECriteriaChecklist ResultsSatisfactory Step10 Step11 Step12 Step13 Step14 Step15 Step16 Step17 Step18
APPENDIXE
SpecialFacilityData
SurryPowerStation
E1
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
E. SPECIALFACILITYDATA
The following tables list population information, as of August 2012, for special facilities,
transientattractionsandmajoremployersthatarelocatedwithintheSPSEPZ.Specialfacilities
aredefinedasschools,(evacuating)daycares,medicalcarefacilities,andcorrectionalfacilities.
Transientpopulationdataisincludedinthetablesforrecreationalareasandlodgingfacilities.
Eachtableisgroupedbycity/county.Thelocationofthefacilityisdefinedbyitsstraightline
distance(miles)anddirection(magneticbearing)fromthecenterpointoftheplant.Mapsof
eachschool,recreationalarea,lodgingfacility,andmajoremployerarealsoprovided.
SurryPowerStation
E2
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
TableE1.SchoolsandDaycareswithintheEPZ
PAZ
Distance
(miles)
Dire
ction
SchoolName
StreetAddress
City/County
Phone
Enrollment
Staff
23
6.8
NW
ClaraByrdBakerElementarySchool
3131IronboundRd
JamesCity
(757)2210949
509
93
23
11.2
NNW
DJMontagueElementarySchool
5380CentervilleRd
JamesCity
(757)2583022
469
70
24
7.7
NW
JamestownHighSchool
3751JohnTylerHwy
JamesCity
(757)2593600
1186
128
24
10.0
NW
MatoakaElementarySchool
4001BrickBatRd
JamesCity
(757)5644001
732
98
24
7.8
NW
ProvidenceClassicalSchool
6000EasterCircle
JamesCity
(757)5652900
195
29
18C
5.6
NE
GileadChristianAcademy
8660PocahontasTrail
JamesCity
(757)2294654
15
1
18D
5.3
NE
JamesRiverElementarySchool
8901PocahontasTrail
JamesCity
(757)8871768
493
73
22B
6.0
NNW
RawlsByrdElementarySchool
112LaurelLn
JamesCity
(727)2297597
461
69
14
7.0
E
GeneralStanfordElementarySchool
929MadisonAve
NewportNews
(757)8883200
575
70
15
10.3
ESE
BCCharlesElementarySchool
701MenchvilleRd
NewportNews
(757)8867750
546
90
15
10.2
ESE
FirstBaptistChurchDenbigh
3628CampbellRd
NewportNews
(757)8337261
120
18
15
10.5
ESE
JenkinsElementarySchool
80MenchvilleRd
NewportNews
(757)8815400
440
70
15
10.4
ESE
MenchvilleHighSchool
275MenchvilleRd
NewportNews
(757)8867722
1776
198
15
9.3
ESE
SanfordElementarySchool
480ColonyRd
NewportNews
(757)8867778
630
75
15
9.4
ESE
WarwickRiverChristianSchool
252LucasCreekRd
NewportNews
(757)8772941
260
52
16
8.1
E
DavidADutrowElementarySchool
60CurtisTignorRd
NewportNews
(757)8867760
487
60
16
10.4
E
DenbighChristianAcademy
1233ShieldsRd
NewportNews
(757)8748661
180
45
16
8.7
ESE
DenbighHighSchool
259DenbighBlvd
NewportNews
(757)8867700
1421
137
16
8.5
ESE
EpesElementarySchool
855LucasCreekRd
NewportNews
(757)8867755
532
85
16
9.4
E
GeorgeJMcIntoshElementary
185Richneckrd
NewportNews
(757)8867767
500
85
16
8.7
ESE
HolyTabernacleChristianAcademy
14749WarwickBlvd
NewportNews
(757)8869515
94
14
16
8.0
E
JMDozierMiddleSchool
432IndustrialParkDr
NewportNews
(757)8883300
1145
125
16
7.2
ENE
LeeHallElementarySchool
17346WarwickBlvd
NewportNews
(757)8883320
634
89
16
8.4
E
MaryPassageMiddleSchool
400AtkinsonWay
NewportNews
(757)8867600
969
120
SurryPowerStation
E3
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
PAZ
Distance
(miles)
Dire
ction
SchoolName
StreetAddress
City/County
Phone
Enrollment
Staff
16
9.4
E
OliverCGreenwoodElementary
School
13460WoodsideLn
NewportNews
(757)8867744
630
80
16
9.6
E
RichneckElementarySchool
205TynerDr
NewportNews
(757)8867772
674
75
16
7.9
ESE
RONelsonElementarySchool
826MoyerRd
NewportNews
(757)8867783
584
88
16
9.6
E
WoodsideHighSchool
13450WoodsideLn
NewportNews
(757)8867530
2102
199
21
7.8
NNW
BerkeleyMiddleSchool
1118IronboundRd
Williamsburg
(757)2298051
829
105
21
7.2
N
CollegeofWilliamandMary
116JamestownRd
Williamsburg
(757)2214000
8200
2700
21
7.5
N
MatthewWhaleyElementarySchool
301ScotlandSt
Williamsburg
(757)2291931
471
65
21
6.5
NNW
WalsinghamAcademy(LowerSchool)
1100JamestownRd
Williamsburg
(757)2292642
318
40
21
6.5
NNW
WalsinghamAcademy(UpperSchool)
1100JamestownRd
Williamsburg
(757)2296026
243
43
17
10.8
ENE
YorktownMiddleSchool
11201GeorgeWashington
MemorialHwy
York
(757)8980360
621
94
19A
7.0
N
MagruderElementarySchool
700PennimanRd
York
(757)2204067
322
48
19A
6.6
NNE
YorkCountyHeadStart
1490GovernmentRd
York
(757)8903888
574
86
20A
10.0
N
BrutonHighSchool
185EastRochambeauDr
York
(757)2204050
65
28
20A
8.8
N
WallerMillElementarySchool
314WallerMillRd
York
(757)2204060
609
87
20A
8.7
N
WilliamsburgHeadStart
312WallerMillRd
York
(757)2296417
747
112
20B
8.2
N
QueensLakeMiddleSchool
124WestQueensDr
York
(757)2204080
68
22
TOTAL:
31,426
5,766
SurryPowerStation
E4
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
TableE2.MedicalFacilitieswithintheEPZ
PAZ
Dist ance
(miles)
Dire
ction
FacilityName
StreetAddress
City/County
Phone
Cap acity
Current Census
Ambul atory
Patients
Wheel chair
Patients
Bed
ridden
Patients
23
8.2
NNW
ChambrelatWilliamsburg
3800TreyburnDr
JamesCity
(757)2201839
53
50
46
3
1
23
9.0
NNW
HancockGeriatric
TreatmentCenter
4601IronboundRd
JamesCity
(757)9846000
300
265
215
20
30
24
6.4
NW
ConsulateHealthCare
1811JamestownRd
JamesCity
(757)2299991
90
85
0
43
44
24
8.7
NW
TheCovalescentat
PatriotsColony Williamsburg
6200PatriotsColony
Dr
JamesCity
(757)2209000
60
58
13
45
0
18B
6.0
NNE
Morningsideof
Williamsburg
440McLawsCircle
JamesCity
(757)2210018
85
80
64
15
1
18C
5.4
NE
ColonialManorSenior
Community
8679PocahontasTrl
JamesCity
(757)4766721
65
54
29
25
0
22B
5.8
NNW
WoodhavenHallAt
Williamsburg
5500Williamsburg
LandingDr
JamesCity
(757)2538801
15
9
5
3
1
16
8.1
E
St.FrancisNursingCenter
15446WarwickBlvd
NewportNews
(757)8866000
115
105
57
37
11
21
8.2
N
EnvoyHealthCare
1235S Mount
VernonAve
Williamsburg
(757)2294121
150
150
0
130
20
21
9.9
NNW
MadisonRetirement
Center
251PatriotLn
Williamsburg
(757)2204014
90
75
65
10
0
21
8.4
N
SpringArborof
Williamsburg
935CapitolLanding
Rd
Williamsburg
(757)5653584
50
50
46
4
0
21
7.2
N
Windsormeadeof
Williamsburg
3900WindsorHallDr
Williamsburg
(866)4035503
12
12
3
9
0
TOTAL:
1,085 993 543 344 108
SurryPowerStation
E5
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
TableE3.Parks/RecreationalAttractionswithintheEPZ
PAZ
Distance
(miles)
Dire
ction
FacilityName
FacilityType
StreetAddress
City/County
Phone
Vehicles
23
10.7
NNW
Ford'sColonyCountryClub
Golf
240FordsColonyDr
JamesCity
(757)2584100
581
245
24
6.3
NW
JamestownSettlement
HistoricalSite
2110JamestownRd
JamesCity
(757)2534838
5,000
900
24
11.0
WNW
TwoRiversCountryClub
Golf
1400TwoRiversRd
JamesCity
(757)2584610
291
123
24
9.0
NW
WilliamsburgNationalGolfClub
Golf
3700CentervilleRd
JamesCity
(800)8265732
349
147
18B
5.4
NNE
BuschGardens
Parks
1BuschGardenBlvd
JamesCity
(757)2533000
20,712
8,385
18B
4.6
NNE
KingsmillGolfClub
Golf
100GolfClubRd
JamesCity
(757)2533906
664
280
22A
5.4
NW
JamestownNationalPark
Parks
1367ColonialParkway
JamesCity
(757)8983400
400
125
14
5.6
ESE
ThePinesGolfCourse
Golf
Building3501MulberryIslandDr
NewportNews
(757)8782965
175
112
15
11.1
ESE
DeepCreekLandingMarina
Marinas
200OldMarinaLn
NewportNews
(757)8779555
14
14
16
9.2
E
NewportNewsGolfClubatDeer
Run
Golf
901ClubhouseWay
NewportNews
(757)8867925
280
70
16
8.4
E
NewportNewsPark
Parks
13564JeffersonAve
NewportNews
(757)8867912
700
280
16
8.1
E
NewportNewsParkCampground
Campgrounds
13564JeffersonAve
NewportNews
(757)8883333
464
188
5
2.4
SW
ChippokesPlantationStatePark
Parks
695ChippokesParkRd
Surry
(757)2943439
84
34
21
7.2
N
ColonialWilliamsburg1
HistoricalSite
DukeofGloucesterSt
Williamsburg
(757)2292141
0
0
21
7.8
N
ColonialWilliamsburgRegional
VisitorCenter
Parks
101VisitorCenterDr
Williamsburg
(757)2291000
4,400
1,650
21
6.7
N
GoldenHorseshoeGolfCourse
Golf
401SouthEnglandSt
Williamsburg
(757)2207696
350
158
19A
7.4
NNE
WaterCountryUSA
Parks
176WaterCountryPkwy
York
(800)3437946
3,913
864
19A
6.1
NNE
WilliamsburgCountryClub
Golf
1801MerrimacTrail
York
(757)2210573
30
13
20A
10.2
N
WallerMillPark
Parks
901AirportRd
York
(757)2593778
210
53
20B
9.9
NNE
DeerCoveGolfCourse
Golf
108SandaAve
York
(757)8876539
83
35
TOTAL:
38,700
13,676
- 1. TransientandvehiclesvisitingColonialWilliamsburgareassignedtotheColonialWilliamsburgRegionalVisitorsCenter
SurryPowerStation
E6
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
TableE4.LodgingFacilitieswithintheEPZ
PAZ
Dist ance
(miles)
Dire
ction
FacilityName
StreetAddress
City/County
Phone
Tran sients
Vehicles
23
10.5
NNW
Marriott'sManorClubatFord'sColony
101StAndrewsDr
JamesCity
(757)2581120
601
279
23
10.2
NNW
PineappleInnandHousingCenter
5437RichmondRd
JamesCity
(757)2599670
200
170
23
10.5
NNW
TheColoniesofWilliamsburg
5380OldeTowneRd
JamesCity
(757)9032000
457
212
23
7.6
NNW
TheHistoricPowhatanResort
3601IronboundRd
JamesCity
(757)2201200
1,335
620
24
8.8
NW
GreenspringsPlantationResort
3500LudwellPkwy
JamesCity
(757)2531177
966
592
18A
6.6
N
CountryInn&SuitesWilliamsburgEast
7135PocahontasTrail
JamesCity
(757)2296900
268
123
18A
6.8
N
FortMagruderINN
6945PocahontasTrail
JamesCity
(757)2202250
924
422
18A
6.6
NNE
RodewayInn&Suites
7224MerrimacTrail
JamesCity
(757)2290400
80
32
18B
4.4
NNE
KingsmillResortandSpa
1010KingsmillRd
JamesCity
(757)2531703
1,289
395
18B
6.0
NNE
QualityInnAtKingsmill
480McLawsCircle
JamesCity
(757)2201100
250
90
22B
4.5
NNW
WedmorePlace
5810WessexHundred
JamesCity
(866)9336673
84
39
16
8.6
ESE
DaysInnNewportNews
14747WarwickBlvd
NewportNews
(800)2253297
232
138
16
8.3
E
EconoLodgeFt.Eustis
15237WarwickBlvd
NewportNews
(757)8749244
98
73
16
7.2
E
HolidayInnExpressNewportNews
16890WarwickBlvd
NewportNews
(757)8873300
228
85
21
7.7
N
APatriotBed&Breakfast
706RichmondRd
Williamsburg
(757)2292099
1,000
604
21
6.9
N
AWilliamsburgWhiteHouse
718JamestownRd
Williamsburg
(866)2298580
12
6
21
7.4
N
AldrichHouseBed&Breakfast
505CapitolCourt
Williamsburg
(757)2295422
12
8
21
7.7
N
AlicePersonHouse
616RichmondRd
Williamsburg
(757)2209263
4
4
21
7.6
N
ApplewoodColonialB&BInc
605RichmondRd
Williamsburg
(757)9034306
300
71
21
6.9
N
BassettMotel
800YorkSt
Williamsburg
(757)2295175
36
18
21
7.7
N
BentleyManorInn
720CollegeTerrace
Williamsburg
(757)2530202
64
17
21
7.7
N
BoxwoodInn
708RichmondRd
Williamsburg
(757)2216607
11
6
21
7.8
N
BudgetInnWilliamsburg
800CapitolLandingRd
Williamsburg
(757)2292374
78
38
21
7.0
N
CedarsofWilliamsburgBed&Breakfast
616JamestownRd
Williamsburg
(800)2963591
18
6
21
7.1
N
ClarionHotelHistoricDistrict
351YorkSt
Williamsburg
(757)2294100
300
263
SurryPowerStation
E7
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
PAZ
Dist ance
(miles)
Dire
ction
FacilityName
StreetAddress
City/County
Phone
Tran sients
Vehicles
21
7.5
N
ColonialCapitalBed&Breakfast
501RichmondRd
Williamsburg
(757)2290233
8
4
21
6.5
NNW
ColonialGardensBedandBreakfast
1109JamestownRd
Williamsburg
(757)2208087
9
9
21
8.2
N
CountryHearthInn
924CapitolLandingRd
Williamsburg
(757)2295215
167
81
21
6.6
N
CrownePlazaHotelWilliamsburg
6945PocahontasTrail
Williamsburg
(757)2202250
989
303
21
9.2
N
DaysInnWilliamsburgCentral
1900RichmondRd
Williamsburg
(800)8285353
180
55
21
7.8
N
DaysInnWilliamsburgColonialArea
902RichmondRd
Williamsburg
(757)2295060
200
187
21
7.5
N
EconoLodgeColonial
216PkwyDr
Williamsburg
(757)2536450
189
58
21
8.4
N
FairfieldInn&SuitesWilliamsburg
1402RichmondRd
Williamsburg
(757)6453600
483
148
21
7.7
N
Fox&GrapeBed&Breakfast
701MonumentalAve
Williamsburg
(757)2296914
115
35
21
7.4
N
Governor'sTraceBed&Breakfast
303CapitolLandingRd
Williamsburg
(757)2297552
8
7
21
8.1
N
HamptonInn&SuitesWilliamsburg
911CapitolLandingRd
Williamsburg
(757)2297330
328
152
21
8.9
N
HiltonGardenInnWilliamsburg
1624RichmondRd
Williamsburg
(757)2539400
330
202
21
8.7
N
HolidayInnExpressHotel&Suites
Williamsburg
1452RichmondRd
Williamsburg
(757)9411057
284
174
21
9.8
NNW
HolidayInnHotelWilliamsburg
3032RichmondRd
Williamsburg
(757)5652600
481
223
21
7.5
N
HospitalityHouse
415RichmondRd
Williamsburg
(757)2294020
1,184
553
21
6.9
N
HughesGuestHouse
106NewportAve
Williamsburg
(757)2293493
9
3
21
9.0
NNW
Johnson'sGuestHouse
101ThomasNelsonLn
Williamsburg
(757)2293909
9
3
21
7.9
N
LaQuintaInn&SuitesWilliamsburg
814CapitolLandingRd
Williamsburg
(757)2290200
200
121
21
7.6
N
LavendarSeaB&B
507CapitaolLandingRd
Williamsburg
(757)2293384
150
111
21
6.9
NNW
LegacyofWilliamsburgBedand
Breakfast
930JamestownRd
Williamsburg
(757)2200524
6
3
21
6.6
NNW
LibertyRose
1025JamestownRd
Williamsburg
(757)8713594
12
4
21
7.7
N
MagnoliaManor
700RichmondRd
Williamsburg
(800)4626667
7
7
21
6.7
N
NewportHouseBed&Breakfast
710SouthHenrySt
Williamsburg
(757)2291775
4
4
21
8.4
N
QualityInn&Suites
1406RichmondRd
Williamsburg
(757)2209304
360
164
21
7.5
N
QualityInnColony
309PageSt
Williamsburg
(757)2293470
334
155
SurryPowerStation
E8
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
PAZ
Dist ance
(miles)
Dire
ction
FacilityName
StreetAddress
City/County
Phone
Tran sients
Vehicles
21
7.0
N
QualityInnHistoricEast BuschGardens
Area
505YorkSt
Williamsburg
(757)2292411
243
113
21
7.9
N
RedRoofInnWilliamsburg
824CapitolLandingRd
Williamsburg
(757)2591948
80
80
21
9.0
NNW
ResidenceInnWilliamsburg
1648RichmondRd
Williamsburg
(757)9412000
400
108
21
8.3
N
RochambeauMotel
929CapitolLandingRd
Williamsburg
(757)2292851
21
21
21
7.9
N
RoyalInnColonialWilliamsburg
824CapitolLandingRd
Williamsburg
(757)2591948
216
101
21
8.9
NNW
SpringHillSuites
1644RichmondRd
Williamsburg
(757)9413001
350
179
21
7.4
N
Super8WilliamsburgHistoricArea
3042ndSt
Williamsburg
(800)4543213
225
112
21
7.3
N
TheFifeandDrumInn
441PrinceGeorgeSt
Williamsburg
(757)3451776
27
13
21
7.9
N
TravelodgeKingWilliamInn
834CapitalLandingRd
Williamsburg
(757)2294933
205
153
21
7.2
N
WilliamsburgInn
136EFrancisSt
Williamsburg
(800)2236800
192
118
21
7.1
N
WilliamsburgLodge
310SouthEnglandSt
Williamsburg
(757)2532277
908
452
21
7.6
N
WilliamsburgManorAnAmericanInn
600RichmondRd
Williamsburg
(757)2208011
12
9
21
6.9
NNW
WilliamsburgSamplerBed&Breakfast
922JamestownRd
Williamsburg
(800)7221169
12
4
21
7.9
N
WilliamsburgWoodlandsHotel&Suites
105VisitorCenterDr
Williamsburg
(757)2532277
1,200
300
19A
7.8
NNE
King'sCreekPlantation
191CottageCoveLn
York
(757)2216760
2,140
856
19A
7.2
N
LexingtonGeorgeWashingtonInn
500MerrimacTrail
York
(757)2201410
742
345
19A
5.9
NNE
ParksideResortWilliamsburg
1821MerrimacTrail
York
(757)3455573
152
70
20A
8.4
N
AmericasBestValueInn
119BypassRd
York
(757)2531663
399
183
20A
8.4
N
BestWesternInn
201BypassRd
York
(757)2200880
324
161
20A
8.2
N
ComfortInnHistoricArea
706BypassRd
York
(757)2299230
451
219
20A
8.2
N
DaysInnWilliamsburgColonialHistoric
Area
331BypassRd
York
(757)2531166
361
168
20A
8.6
N
EmbassySuitesWilliamsburg
3006MooretownRd
York
(757)2296800
497
227
20A
8.2
N
HolidayInnHotel&SuitesWilliamsburg Historic
515BypassRd
York
(757)2299990
240
192
20A
8.2
N
HomewoodSuitesbyHiltonWilliamsburg
601BypassRd
York
(757)2591199
400
187
20A
8.2
N
KnightsInnWilliamsburg
725BypassRd
York
(800)4770629
247
184
SurryPowerStation
E9
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
PAZ
Dist ance
(miles)
Dire
ction
FacilityName
StreetAddress
City/County
Phone
Tran sients
Vehicles
20A
8.1
N
SleepInnHistoric
220BypassRd
York
(757)2591700
156
52
20A
8.3
N
TravelodgeInnandSuitesHistoricArea
120BypassRd
York
(800)5447774
244
98
20A
9.1
N
WyndhamGovernor'sGreen
4600MooretownRd
York
(757)5642420
610
280
20A
8.6
N
WyndhamKingsgate
619GeorgetownCrescent
York
(757)2205702
1,804
838
20A
8.3
N
WyndhamPatriot'sPlace
725BypassRd
York
(866)3233087
451
209
TOTAL:
28,202
13,109
SurryPowerStation
E10
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
TableE5.CorrectionalFacilitieswithintheEPZ
PAZ
Distance
(miles)
Dire
ction
FacilityName
StreetAddress
City/County
Phone
Cap
acity
18C
6.1
NE
VirginiaPeninsulaRegionalJail
9320MerrimacTrail
JamesCity
(757)8203900
595
TOTAL:
595
SurryPowerStation
E11
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE1.SchoolsandDaycareswithintheEPZOverview
SurryPowerStation
E12
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE2.SchoolsandDaycaresNorthernEPZ
SurryPowerStation
E13
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE3.SchoolsandDaycaresEasternEPZ
SurryPowerStation
E14
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE4.MedicalFacilitieswithintheEPZ
SurryPowerStation
E15
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE5.RecreationalAreaswithintheEPZ
SurryPowerStation
E16
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE6.LodgingwithintheEPZOverview
SurryPowerStation
E17
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE7.LodgingwithintheEPZ-NorthernEPZ
SurryPowerStation
E18
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE8:LodgingwithintheEPZ-NorthernWilliamsburg
SurryPowerStation
E19
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE9.LodgingCentralWilliamsburg
SurryPowerStation
E20
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureE10.CorrectionalFacilitieswithintheEPZ
APPENDIXF
TelephoneSurvey
SurryPowerStation
F1
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
F. TELEPHONESURVEY
F.1 Introduction
ThedevelopmentofevacuationtimeestimatesfortheSPSEPZrequirestheidentificationof
travel patterns, car ownership and household size of the population within the EPZ.
DemographicinformationcanbeobtainedfromCensusdata.Theuseofthisdatahasseveral
limitationswhenappliedtoemergencyplanning.First,theCensusdatadonotencompassthe
range of information needed to identify the time required for preliminary activities
(mobilization)thatmustbeundertakenpriortoevacuatingthearea.Secondly,Censusdatado
notcontainattitudinalresponsesneededfromthepopulationoftheEPZandconsequentlymay
notaccuratelyrepresenttheanticipatedbehavioralcharacteristicsoftheevacuatingpopulace.
Theseconcernsareaddressedbyconductingatelephonesurveyofarepresentativesampleof
the EPZ population. The survey is designed to elicit information from the public concerning
familydemographicsandestimatesofresponsetimestowelldefinedevents.Thedesignofthe
surveyincludesalimitednumberofquestionsoftheformWhatwouldyoudoif?andother
questionsregardingactivitieswithwhichtherespondentisfamiliar(Howlongdoesittakeyou
to?)
SurryPowerStation
F2
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
F.2 SurveyInstrumentandSamplingPlan
AttachmentApresentsthefinalsurveyinstrumentusedinthisstudy.Adraftoftheinstrument
was submitted to stakeholders for comment. Comments were received and the survey
instrumentwasmodifiedaccordingly,priortoconductingthesurvey.
Followingthecompletionoftheinstrument,asamplingplanwasdeveloped.Asamplesizeof
approximately500completedsurveyformsyieldsresultswithasamplingerrorof+/-4.5%atthe
95%confidencelevel.ThesamplemustbedrawnfromtheEPZpopulation.Consequently,alist
ofzipcodesintheEPZwasdevelopedusingGISsoftware.ThislistisshowninTableF1.Along
witheachzipcode,anestimateofthepopulationandnumberofhouseholdsineachareawas
determinedbyoverlayingCensusdataandtheEPZboundary,againusingGISsoftware.The
proportionalnumberofdesiredcompletedsurveyinterviewsforeachareawasidentified,as
shown in Table F1. Note that the average household size computed in Table F1 was an
estimate for sampling purposes and was not used in the ETE study. The survey was also
conductedinSpanishtoaccountforthesignificantSpanishspeakingpopulationwithintheEPZ.
Tomakesurethesurveywasasinclusiveaspossible,10%ofthesampleswereobtainedby
callingcellphonenumbers.
Thecompletedsurveyadheredtothesamplingplan.
TableF1.SPSTelephoneSurveySamplingPlan
ZipCode
Populationwithin
EPZ(2010)
Households
Required
Sample
23185
42,062
17,274
152
23186
41
17
0
23188
20,945
9,004
79
23430
1,532
623
5
23602
24,817
9,553
83
23603
3,644
1,364
12
23604
2,853
754
7
23606
0
0
0
23608
42,744
16,280
143
23690
2,602
956
8
23692
49
21
0
23839
108
41
0
23846
407
156
1
23881
603
282
2
23883
2,432
957
8
Total
144,839
57,282
500
AverageHouseholdSize:
2.53
SurryPowerStation
F3
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
F.3 SurveyResults
Theresultsofthesurveyfallintotwocategories.First,thehouseholddemographicsofthearea
canbeidentified.Demographicinformationincludessuchfactorsashouseholdsize,automobile
ownership,andautomobileavailability.Thedistributionsofthetimetoperformcertainpre evacuationactivitiesarethesecondcategoryofsurveyresults.Thesedataareprocessedto
developthetripgenerationdistributionsusedintheevacuationmodelingeffort,asdiscussedin
Section5.
Areviewofthesurveyinstrumentrevealsthatseveralquestionshaveadontknow(DK)or
refused entry for a response. It is accepted practice in conducting surveys of this type to
accept the answers of a respondent who offers a DK response for a few questions or who
refusestoanswerafewquestions.ToaddresstheissueofoccasionalDK/refusedresponses
fromalargesample,thepracticeistoassumethatthedistributionoftheseresponsesisthe
same as the underlying distribution of the positive responses. In effect, the DK/refused
responsesareignoredandthedistributionsarebaseduponthepositivedatathatisacquired.
F.3.1 HouseholdDemographicResults
HouseholdSize
FigureF1presentsthedistributionofhouseholdsizewithintheEPZ.Theaveragehousehold
contains2.47people.The estimated household size (2.53 persons) used to determine the
survey sample (Table F1) was drawn from Census data. The close agreement between the
averagehouseholdsizeobtainedfromthesurveyandfromtheCensusisanindicationofthe
reliabilityofthesurvey.
FigureF1.HouseholdSizeintheEPZ
0%
10%
20%
30%
40%
50%
60%
1 2
3 4
5 6
7 8
9 10+
%ofHouseholds HouseholdSize SurryHouseholdSize
SurryPowerStation
F4
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
AutomobileOwnership
TheaveragenumberofautomobilesavailableperhouseholdintheEPZis1.90.Itshouldbe
notedthatapproximately3.2percentofhouseholdsdonothaveaccesstoanautomobile.The
distribution of automobile ownership is presented in Figure F2. Figure F3 and Figure F4
present the automobile availabilityby household size. Note that the majority of households
withoutaccesstoacararesinglepersonhouseholds.Asexpected,nearlyallhouseholdsof2or
morepeoplehaveaccesstoatleastonevehicle.
FigureF2.HouseholdVehicleAvailability
0%
10%
20%
30%
40%
50%
60%
0 1
2 3
4 5
6 7
8 9+
%ofHouseholds NumberofVehicles SurryVehicleAvailability
SurryPowerStation
F5
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureF3.VehicleAvailability1to5PersonHouseholds
FigureF4.VehicleAvailability6to9+PersonHouseholds
0%
20%
40%
60%
80%
100%
0 1
2 3
4 5
6 7
8 9+
%ofHouseholds Vehicles DistributionofVehiclesbyHHSize 15PersonHouseholds 1Person 2People 3People 4People 5People 0%
20%
40%
60%
80%
100%
0 1
2 3
4 5
6 7
8 9+
%ofHouseholds Vehicles DistributionofVehiclesbyHHSize 69+PersonHouseholds 6People 7People 8People 9+People
SurryPowerStation
F6
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Ridesharing
85%ofthehouseholdssurveyedwhodonotownavehiclerespondedthattheywouldsharea
ride with a neighbor, relative, or friend if a car was not available to them when advised to
evacuateintheeventofanemergency.Note,however,thatonlythosehouseholdswithno
accesstoavehicle-20totaloutofthesamplesizeof500-answeredthisquestion.Thus,the
resultsarenotstatisticallysignificant.Assuch,theNRCrecommendationof50%ridesharingis
usedthroughoutthisstudy.FigureF5presentsthisresponse.
FigureF5.HouseholdRidesharingPreference
0%
20%
40%
60%
80%
100%
Yes No
%ofHouseholds SurryRidesharewithNeighbor/Friend
SurryPowerStation
F7
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Commuters
Figure F6 presents the distribution of the number of commuters in each household.
Commutersaredefinedashouseholdmemberswhotraveltoworkorcollegeonadailybasis.
Thedatashowsanaverageof0.96commutersineachhouseholdintheEPZ,and57.0%of
householdshaveatleastonecommuter.
FigureF6.CommutersinHouseholdsintheEPZ
0%
10%
20%
30%
40%
50%
0 1
2 3
4+
%ofHouseholds NumberofCommuters SurryCommuters
SurryPowerStation
F8
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
CommuterTravelModes
FigureF7presentsthemodeoftravelthatcommutersuseonadailybasis.Thevastmajorityof
commutersusetheirprivateautomobilestotraveltowork.Thedatashowsanaverageof1.08
employeespervehicle,assuming2peoplepervehicle-onaverage-forcarpools.
FigureF7.ModesofTravelintheEPZ
F.3.2 EvacuationResponse
Severalquestionswereaskedtogaugethepopulationsresponsetoanemergency.Theseare
nowdiscussed:
Howmanyofthevehicleswouldyourhouseholduseduringanevacuation?Theresponseis
showninFigureF8.Onaverage,evacuatinghouseholdswoulduse1.19vehicles.
0.4%
4.4%
0.8%
87.1%
7.2%
0%
20%
40%
60%
80%
100%
Rail Bus Walk/Bike DriveAlone Carpool(2+)
%ofCommuters ModeofTravel SurryTravelModetoWork
SurryPowerStation
F9
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureF8.NumberofVehiclesUsedforEvacuation
Wouldyourfamilyawaitthereturnofotherfamilymemberspriortoevacuatingthearea?
Ofthesurveyparticipantswhoresponded,60percentsaidtheywouldawaitthereturnofother
family members before evacuating and 40 percent indicated that they would not await the
returnofotherfamilymembers.
Emergencyofficialsadviseyoutotakeshelterathomeinanemergency.Wouldyou?This
questionisdesignedtoelicitinformationregardingcompliancewithinstructionstoshelterin
place.Theresultsindicatethat81percentofhouseholdswhoareadvisedtoshelterinplace
woulddoso;theremaining19percentwouldchoosetoevacuatethearea.Notethebaseline
ETEstudyassumes20percentofhouseholdswillnotcomplywiththeshelteradvisory,asper
Section2.5.2ofNUREG/CR7002.Thus,thedataobtainedaboveisingoodagreementwiththe
federalguidance.
Emergencyofficialsadviseyoutotakeshelterathomenowinanemergencyandpossibly
evacuatelaterwhilepeopleinotherareasareadvisedtoevacuatenow.Wouldyou?This
question is designed to elicit information specifically related to the possibility of a staged
evacuation.Thatis,askingapopulationtoshelterinplacenowandthentoevacuateaftera
specified period of time. Results indicate that 74 percent of households would follow
instructionsanddelaythestartofevacuationuntilsoadvised,whilethebalanceof26percent
wouldchoosetobeginevacuatingimmediately.
Whattypeofpetsdoyouhaveandhowmanyofeachtype?Basedontheresponsestothe
survey,48%ofhouseholdshaveatleastonefamilypet.34%ofhouseholds(172)haveatleast
onedog;19%(93)haveatleastonecat(FigureF9).
Whatwouldyoudowithyourpet(s)ifyouhadtoevacuate?Ofthehouseholdswithpets,33
0%
20%
40%
60%
80%
100%
0 1
2 3
4
%ofHouseholds NumberofVehicles VehiclesUsedforEvacuation
SurryPowerStation
F10
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
percent of them indicated that they would take their pets with them to a public assembly
centerorshelter,asshowninFigureF10,59%saidtheywouldevacuatewiththeirpettosome
otherdestinationand8%saidtheywouldleavethepetathome.
FigureF9.PetOwnership
FigureF10.DestinationsHouseholdswithPets
0%
10%
20%
30%
40%
50%
60%
Dog Cat Fish Other small mammal Bird Reptile Horse NoPets NumerofHouseholds PercentofHouseholdswithEachType
ofPet 0%
10%
20%
30%
40%
50%
60%
70%
PublicShelter SomewhereElse LeaveHome PercentofHouseholdsWithPets PetEvacuation
SurryPowerStation
F11
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
F.3.3 TimeDistributionResults
Thesurveyaskedseveralquestionsabouttheamountoftimeittakestoperformcertainpre evacuationactivities.Theseactivitiesinvolveactionstakenbyresidentsduringthecourseof
theirdaytodaylives.Thus,theanswersfallwithintherealmoftherespondersexperience.
The mobilization distributions provided below are the result of having applied the analysis
describedinSection5.4.1onthecomponentactivitiesofthemobilization.
SurryPowerStation
F12
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Howlongdoesittakethecommutertocompletepreparationforleavingwork?FigureF11
presentsthecumulativedistribution;inallcases,theactivityiscompletedbyabout75minutes.
Ninetypercentcanleavewithin40minutes.
FigureF11.TimeRequiredtoPreparetoLeaveWork/School
Howlongwouldittakethecommutertotravelhome?FigureF12presentstheworkto
hometraveltimefortheEPZ.About85percentofcommuterscanarrivehomewithinabout40
minutesofleavingwork;allwithin90minutes.
FigureF12.WorktoHomeTravelTime
0%
20%
40%
60%
80%
100%
0 20 40 60 80 100 120 140
%ofCommuters PreparationTime(min)
TimetoPreparetoLeaveWork 0%
20%
40%
60%
80%
100%
0 20 40 60 80 100 120 140
%ofCommuters TravelTime(min)
WorktoHomeTravel
SurryPowerStation
F13
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Howlongwouldittakethefamilytopackclothing,securethehouse,andloadthecar?
FigureF13presentsthetimerequiredtoprepareforleavingonanevacuationtrip.Inmany
ways this activity mimics a familys preparation for a short holiday or weekend away from
home.Hence,theresponsesrepresenttheexperienceoftheresponderinperformingsimilar
activities.
ThedistributionshowninFigureF13hasalongtail.About80percentofhouseholdscanbe
readytoleavehomewithin75minutes;theremaininghouseholdsrequireuptoanadditional
twohours.
FigureF13.TimetoPrepareHomeforEvacuation
0%
20%
40%
60%
80%
100%
0 60 120 180 240 300 360 420
%ofHouseholds PreparationTime(min)
TimetoPreparetoLeaveHome
SurryPowerStation
F14
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Howlongwouldittakeyoutoclear6to8inchesofsnowfromyourdriveway?During
adverse,snowyweatherconditions,anadditionalactivitymustbeperformedbeforeresidents
can depart on the evacuation trip. Although snow scenarios assume that the roads and
highwayshavebeenplowedandarepassable(albeitatlowerspeedsandcapacities),itmaybe
necessarytoclearaprivatedrivewaypriortoleavingthehomesothatthevehiclecanaccess
thestreet.FigureF14presentsthetimedistributionforremoving6to8inchesofsnowfroma
driveway.Thetimedistributionforclearingthedrivewayhasalongtail;about90percentof
drivewaysarepassablewithin90minutes.Thelastdrivewayisclearedthreehoursafterthe
startofthisactivity.Notethatthoserespondents(33%)whoansweredthattheywouldnot
taketimetocleartheirdrivewaywereassumedtobereadyimmediatelyatthestartofthis
activity.Essentiallytheywoulddrivethroughthesnowonthedrivewaytoaccesstheroadway
andbegintheirevacuationtrip.
FigureF14.TimetoClearDrivewayof6"8"ofSnow
F.4 Conclusions
The telephone survey provides valuable, relevant data associated with the EPZ population,
whichhavebeenusedtoquantifydemographicsspecifictotheEPZ,andmobilizationtime
whichcaninfluenceevacuationtimeestimates.
0%
20%
40%
60%
80%
100%
0 20 40 60 80 100 120 140 160 180 200
%ofHouseholds TravelTime(min)
TimetoRemoveSnowfromDriveway
SurryPowerStation
F15
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
ATTACHMENTA
TelephoneSurveyInstrument
SurryPowerStation
F16
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
Hello, my name is Telephone Survey Instrument and Im working on a survey for COL. 1 Unused Dominion Virginia Power to identify local behavior during emergency situations. This information will be used for emergency planning and will be shared with local officials to enhance emergency response plans in your area for all hazards; emergency planning for some hazards may require evacuation. Your responses will greatly contribute to local emergency preparedness. I will not ask for your name or any personal information, and the survey will take less than 10 minutes to complete.
COL. 2 Unused COL. 3 Unused COL. 4 Unused COL. 5 Unused Sex COL. 8 1 Male 2 Female INTERVIEWER:
ASK TO SPEAK TO THE HEAD OF HOUSEHOLD OR THE SPOUSE OF THE HEAD OF HOUSEHOLD. (Terminate call if not a residence.)
DO NOT ASK:
1A.
Record area code. To Be Determined COL. 9-11 1B.
Record exchange number. To Be Determined COL. 12-14 2A.
What is your home zip code? (DO NOT READ ANSWERS)
COL. 15-16 23185 01 23186 02 23188 03 23430 04 23602 05 23603 06 23604 07 23606 08 23608 09 23690 10 23692 11 23839 12 23846 13 23881 14 23883 15 All Other Zip Codes or Dont Know/Refused Out of Study Area - (Let respondent know that they are not in the study area, thank them for their time then terminate call) 3A.
In total, how many running cars, or other vehicles are usually available to the household?
(DO NOT READ ANSWERS)
COL. 20 1
ONE 2
TWO 3
THREE 4
FOUR 5
FIVE SKIP TO Q. 4 Q. 4 Q. 4 Q. 4 Q. 4
SurryPowerStation
F17
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
3B.
In an emergency, could you get a ride out of the area with a neighbor or friend?
6 SIX 7
SEVEN 8
EIGHT 9
NINE OR MORE 0
ZERO (NONE)
X DONT KNOW/REFUSED COL. 21 1
YES 2
NO X DONT KNOW/REFUSED Q. 4 Q. 4 Q. 4 Q. 4 Q. 3B Q. 3B
- 4.
How many people usually live in this household?
(DO NOT READ ANSWERS)
- 5.
How many people in the household commute to a job, or to college on a daily basis?
COL. 22 1
ONE 2
TWO 3
THREE 4
FOUR 5
FIVE 6
SIX 7
SEVEN 8
EIGHT 9
NINE COL. 24 0
ZERO 1
ONE 2
TWO 3
THREE 4
TEN 1
ELEVEN 2
TWELVE 3
THIRTEEN 4
FOURTEEN 5
FIFTEEN 6
SIXTEEN 7
SEVENTEEN 8
EIGHTEEN 9
NINETEEN OR MORE X DONT KNOW/REFUSED SKIP TO Q. 9 Q. 6 Q. 6 Q. 6 Q. 6 5
DONT KNOW/REFUSED Q. 9 INTERVIEWER:
For each person identified in Question 5, ask Questions 6, 7, and 8.
- 6.
Thinking about commuter #1, how does that person usually travel to work or college? (REPEAT QUESTION FOR EACH COMMUTER)
Commuter #1 COL. 25 Commuter #2 COL. 26 Commuter #3 COL. 27 Commuter #4 COL. 28 Rail 1
1 1
1 Bus 2
2 2
2 Walk/Bicycle 3
3 3
3 Drive Alone 4
4 4
4 Carpool-2 or more people 5
5 5
5 Dont know/Refused 6
6 6
6
- 7.
How much time on average, would it take Commuter #1 to travel home from work or college? (REPEAT QUESTION FOR EACH COMMUTER) (DO NOT READ ANSWERS)
COMMUTER #1 COMMUTER #2
SurryPowerStation
F18
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
1 5 MINUTES OR LESS 1
46-50 MINUTES 1
5 MINUTES OR LESS 1
46-50 MINUTES 2 6-10 MINUTES 2
51-55 MINUTES 2
6-10 MINUTES 2
51-55 MINUTES 3 11-15 MINUTES 3
56 - 1 HOUR 3
11-15 MINUTES 3
56 - 1 HOUR 4
16-20 MINUTES 4
OVER 1 HOUR, BUT LESS THAN 1 HOUR 4
16-20 MINUTES 4
OVER 1
- HOUR, BUT LESS THAN 1 15 MINUTES HOUR 15 MINUTES 5
21-25 MINUTES 5
BETWEEN 1 HOUR 16 MINUTES AND 1 5
21-25 MINUTES 5
BETWEEN 1 HOUR 16 MINUTES AND 1 HOUR 30 MINUTES HOUR 30 MINUTES 6
26-30 MINUTES 6
BETWEEN 1 HOUR 31 MINUTES AND 1 6
26-30 MINUTES 6
BETWEEN 1 HOUR 31 MINUTES AND 1 HOUR 45 MINUTES HOUR 45 MINUTES 7
31-35 MINUTES 7
BETWEEN 1 HOUR 46 MINUTES AND 2 7
31-35 MINUTES 7
BETWEEN 1 HOUR 46 MINUTES AND 2 HOURS HOURS 8 36-40 MINUTES 8
OVER 2 HOURS (SPECIFY
)
8 36-40 MINUTES 8
OVER 2 HOURS (SPECIFY
)
9 41-45 MINUTES 9
9 41-45 MINUTES 9
0 0
X DONT KNOW
/REFUSED X
DONT KNOW
/REFUSED
COMMUTER #3 COMMUTER #4
SurryPowerStation
F19
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
COL. 33 COL. 34 COL. 35 COL. 36 1 5 MINUTES OR LESS 1
46-50 MINUTES 1
5 MINUTES OR LESS 1
46-50 MINUTES 2 6-10 MINUTES 2
51-55 MINUTES 2
6-10 MINUTES 2
51-55 MINUTES 3 11-15 MINUTES 3
56 - 1 HOUR 3
11-15 MINUTES 3
56 - 1 HOUR 4
16-20 MINUTES 4
OVER 1 HOUR, BUT LESS THAN 1 HOUR 4
16-20 MINUTES 4
OVER 1
- HOUR, BUT LESS THAN 1 15 MINUTES HOUR 15 MINUTES 5
21-25 MINUTES 5
BETWEEN 1 HOUR 16 MINUTES AND 1 5
21-25 MINUTES 5
BETWEEN 1 HOUR 16 MINUTES AND 1 HOUR 30 MINUTES HOUR 30 MINUTES 6
26-30 MINUTES 6
BETWEEN 1 HOUR 31 MINUTES AND 1 6
26-30 MINUTES 6
BETWEEN 1 HOUR 31 MINUTES AND 1 HOUR 45 MINUTES HOUR 45 MINUTES 7
31-35 MINUTES 7
BETWEEN 1 HOUR 46 MINUTES AND 2 7
31-35 MINUTES 7
BETWEEN 1 HOUR 46 MINUTES AND 2 HOURS HOURS 8 36-40 MINUTES 8
OVER 2 HOURS (SPECIFY
)
8 36-40 MINUTES 8
OVER 2 HOURS (SPECIFY
)
9 41-45 MINUTES 9
9 41-45 MINUTES 9
0 0
X DONT KNOW
/REFUSED X
DONT KNOW
/REFUSED
- 8. Approximately how much time does it take Commuter #1 to complete preparation for leaving work or college prior to starting the trip home? (REPEAT QUESTION FOR EACH COMMUTER) (DO NOT READ ANSWERS)
COMMUTER #1 COMMUTER #2 COL. 37 COL. 38 COL. 39 COL. 40 1 5 MINUTES OR LESS 1
46-50 MINUTES 1
5 MINUTES OR LESS 1
46-50 MINUTES 2 6-10 MINUTES 2
51-55 MINUTES 2
6-10 MINUTES 2
51-55 MINUTES 3 11-15 MINUTES 3
56 - 1 HOUR 3
11-15 MINUTES 3
56 - 1 HOUR 4
16-20 MINUTES 4
OVER 1 HOUR, BUT LESS THAN 1 HOUR 4
16-20 MINUTES 4
OVER 1
- HOUR, BUT LESS THAN 1 15 MINUTES HOUR 15 MINUTES 5
21-25 MINUTES 5
BETWEEN 1 HOUR 16 MINUTES AND 1 5
21-25 MINUTES 5
BETWEEN 1 HOUR 16 MINUTES AND 1 HOUR 30 MINUTES HOUR 30 MINUTES 6
26-30 MINUTES 6
BETWEEN 1 HOUR 31 MINUTES AND 1 6
26-30 MINUTES 6
BETWEEN 1 HOUR 31 MINUTES AND 1 HOUR 45 MINUTES HOUR 45 MINUTES 7
31-35 MINUTES 7
BETWEEN 1 HOUR 46 MINUTES AND 2 7
31-35 MINUTES 7
BETWEEN 1 HOUR 46 MINUTES AND 2 HOURS HOURS 8 36-40 MINUTES 8
OVER 2 HOURS (SPECIFY
)
8 36-40 MINUTES 8
OVER 2 HOURS (SPECIFY
)
9 41-45 MINUTES 9
9 41-45 MINUTES 9
X DONT KNOW /REFUSED X
DONT KNOW /REFUSED
SurryPowerStation
F20
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1 6
7 0
COMMUTER #3 COMMUTER #4 COL. 41 COL. 42 COL. 43 COL. 44 1 5 MINUTES OR LESS 1
46-50 MINUTES 1
5 MINUTES OR LESS 1
46-50 MINUTES 2 6-10 MINUTES 2
51-55 MINUTES 2
6-10 MINUTES 2
51-55 MINUTES 3 11-15 MINUTES 3
56 - 1 HOUR 3
11-15 MINUTES 3
56 - 1 HOUR 4
16-20 MINUTES 4
OVER 1 HOUR, BUT LESS THAN 1 HOUR 4
16-20 MINUTES 4
OVER 1 HOUR, BUT LESS THAN 1 HOUR 15 15 MINUTES MINUTES 5
21-25 MINUTES 5
BETWEEN 1 HOUR 16 MINUTES AND 1 5
21-25 MINUTES 5
BETWEEN 1 HOUR 16 MINUTES AND 1 HOUR HOUR 30 MINUTES 30 MINUTES 6
26-30 MINUTES 6
BETWEEN 1 HOUR 31 MINUTES AND 1 6
26-30 MINUTES 6
BETWEEN 1 HOUR 31 MINUTES AND 1 HOUR HOUR 45 MINUTES 45 MINUTES 7
31-35 MINUTES 7
BETWEEN 1 HOUR 46 MINUTES AND 2 7
31-35 MINUTES 7
BETWEEN 1 HOUR 46 MINUTES AND 2 HOURS HOURS 8 36-40 MINUTES 8
OVER 2 HOURS (SPECIFY
)
8 36-40 MINUTES 8
OVER 2 HOURS (SPECIFY
)
9 41-45 MINUTES 9
9 41-45 MINUTES 9
0 0
X DONT KNOW /REFUSED X
DONT KNOW /REFUSED
- 9. If you were advised by local authorities to evacuate, how much time would it take the household to pack clothing, medications, secure the house, load the car, and complete preparations prior to evacuating the area?
(DO NOT READ ANSWERS)
LESS THAN 15 MINUTES 1
3 HOURS TO 3 HOURS 15 MINUTES 2
15-30 MINUTES 2
3 HOURS 16 MINUTES TO 3 HOURS 30 MINUTES 3
31-45 MINUTES 3
3 HOURS 31 MINUTES TO 3 HOURS 45 MINUTES 4
46 MINUTES - 1 HOUR 4
3 HOURS 46 MINUTES TO 4 HOURS 5
1 HOUR TO 1 HOUR 15 MINUTES 5
4 HOURS TO 4 HOURS 15 MINUTES 1 HOUR 16 MINUTES TO 1 HOUR 30 MINUTES 6
1 HOUR 31 MINUTES TO 1 HOUR 45 MINUTES 7
4 HOURS 16 MINUTES TO 4 HOURS 30 MINUTES 4 HOURS 31 MINUTES TO 4 HOURS 45 MINUTES 8
1 HOUR 46 MINUTES TO 2 HOURS 8
4 HOURS 46 MINUTES TO 5 HOURS 9
2 HOURS TO 2 HOURS 15 MINUTES 9
5 HOURS TO 5 HOURS 30 MINUTES 2 HOURS 16 MINUTES TO 2 HOURS 30 MINUTES 0
5 HOURS 31 MINUTES TO 6 HOURS X
2 HOURS 31 MINUTES TO 2 HOURS 45 MINUTES X
OVER 6 HOURS (SPECIFY
)
Y 2 HOURS 46 MINUTES TO 3 HOURS Z
WILL NOT EVACUATE COL. 47 1
DONT KNOW/REFUSED
SurryPowerStation
F21
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
- 10. If there is 6-8 of snow on your driveway or curb, would you need to shovel out to evacuate? If yes, how much time, on average, would it take you to clear the 6-8 of snow to move the car from the driveway or curb to begin the evacuation trip? Assume the roads are passable. (DO NOT READ RESPONSES)
LESS THAN 15 MINUTES 1
OVER 3 HOURS (SPECIFY
)
2 15-30 MINUTES 2
DONT KNOW/REFUSED 3
31-45 MINUTES 4
46 MINUTES - 1 HOUR 5
1 HOUR TO 1 HOUR 15 MINUTES 6
1 HOUR 16 MINUTES TO 1 HOUR 30 MINUTES 7
1 HOUR 31 MINUTES TO 1 HOUR 45 MINUTES 8
1 HOUR 46 MINUTES TO 2 HOURS 9
2 HOURS TO 2 HOURS 15 MINUTES 0
2 HOURS 16 MINUTES TO 2 HOURS 30 MINUTES X
2 HOURS 31 MINUTES TO 2 HOURS 45 MINUTES Y
2 HOURS 46 MINUTES TO 3 HOURS Z
NO, WILL NOT SHOVEL OUT
- 11.
Please choose one of the following (READ ANSWERS):
A.
I would await the return of household commuters to evacuate together.
B.
I would evacuate independently and meet other household members later.
COL. 50 1
A 2
B X
DONT KNOW/REFUSED
- 12.
How many vehicles would your household use during an evacuation? (DO NOT READ ANSWERS)
COL. 51 1
ONE 2
TWO 3
THREE 4
FOUR 5
FIVE 6
SIX 7
SEVEN 8
EIGHT 9
NINE OR MORE 0
ZERO (NONE)
X DONT KNOW/REFUSED
SurryPowerStation
F22
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
13A.
Emergency officials advise you to take shelter at home in an emergency. Would you: (READ ANSWERS)
A. SHELTER; or B. EVACUATE 13B.
Emergency officials advise you to take shelter at home now in an emergency and possibly evacuate later while people in other areas are advised to evacuate now. Would you: (READ ANSWERS)
A. SHELTER; or B. EVACUATE COL. 52 1
A 2
B X DONT KNOW/REFUSED COL. 53 1
A 2
B X DONT KNOW/REFUSED 13C.
Emergency officials advise you to evacuate in an emergency. Where would you go?: (DO NOT READ ANSWERS)
COL 54 1
A FAMILY MEMBER OR RELATIVES HOME 2
A PUBLIC ASSEMBLY CENTER OR SHELTER 3
A HOTEL OR MOTEL 4
A SECOND HOME 5
OTHER (specify) 6 WOULD NOT EVACUATE X
DONT KNOW REFUSED 14A.
What type of pets do you have, and how many of each type? (DO NOT READ ANSWERS)
COL 55-59 COL 60: (For species listed in COL 55 list number of pets) 1 DOG COL 61: (For species listed in COL 56 list number of pets) 2 CAT COL 62: (For species listed in COL 57 list number of pets) 3 OTHER SMALL MAMMAL COL 63: (For species listed in COL 58 list number of pets) 4 BIRD COL 64: (For species listed in COL 59 list number of pets) 5 REPTILE 6
HORSE 7
FISH 8
OTHER (specify) 9 NO PETS (GO TO END OF SURVEY)
X DONT KNOW/REFUSED 14B.
What would you do with your pet (s) if you had to evacuate? (READ ANSWERS)
COL. 65 1
TAKE IT WITH ME TO A PUBLIC ASSEMBLY CENTER OR SHELTER 2
TAKE IT WITH ME SOMEWHERE ELSE 3
LEAVE IT AT HOME X
DONT KNOW/REFUSED Thank you very much.
(TELEPHONE NUMBER CALLED)
SurryPowerStation
F23
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
IF REQUESTED:
For additional information, contact your (City or County) Emergency Management Agency during normal business hours.
City/County EMA Phone SurryCounty
7572945205
IsleofWightCounty
7573656308
YorkCounty
7578903600
JamesCityCounty
7575642141
CityofNewportNews
7572692900
CityofWilliamsburg
7572206225
Dominion
(800)8148262
APPENDIXG
TrafficManagementPlan
SurryPowerStation
G1
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
G. TRAFFICMANAGEMENTPLAN
NUREG/CR7002 indicates that the existing TCPs and ACPs identified by the offsite agencies
shouldbeusedintheevacuationsimulationmodeling.Thetrafficandaccesscontrolplansfor
theEPZwereprovidedbyeachcity/county.
TheseplanswerereviewedandtheTCPsandACPswhichareactivatedfortheevacuationof
thefullEPZwereidentifiedandmodeledaccordingly.
G.1 TrafficControlPoints
As discussed in Section 9, traffic control points at intersections (which are controlled) are
modeledasactuatedsignals.Ifanintersectionhasapretimedsignal,stop,oryieldcontrol,and
the intersection is identified as a traffic control point, the control type was changed to an
actuatedsignalintheDYNEVIIsystem.TableK2providesthecontroltypeandnodenumber
forthosenodeswhicharecontrolled.Iftheexistingcontrolwaschangedduetothepointbeing
atrafficcontrolpoint,thecontroltypeisindicatedasaTCPinTableK2.
Figure G1 maps the TCPs identified in theemergency plans. According to the plans, theses
TCPswouldhaveaminimumof1officerpertrafficcontrolpoint,whowoulddirectevacueesin
theproperdirectionandfacilitatetheflowoftrafficthroughtheintersections.AttheAlertlevel
orabove,trafficbarrierswouldbedistributed,asneeded.
G.2 AccessControlPoints
It is assumed that ACPs will be established within 2 hours of the advisory to evacuate to
discourage through travelers from using major through routes which traverse the EPZ. As
discussed in Section 3.6, external traffic was only considered on I64, in this analysis. The
generation of these external trips ceased at 2 hours after the advisory to evacuate in the
simulation.
SurryPowerStation
G2
KLDEngineering,P.C.
EvacuationTimeEstimate
Rev.1
FigureG1.TrafficandAccessControlPointsfortheSPSSite
APPENDIXH
EvacuationRegions