ML20092E233
| ML20092E233 | |
| Person / Time | |
|---|---|
| Site: | Catawba  |
| Issue date: | 05/07/1984 |
| From: | Kulash W, Lutes J PLANNING RESEARCH CORP. |
| To: | Jun Lee DUKE POWER CO. |
| References | |
| I-EP-023, I-EP-23, OL, NUDOCS 8406220341 | |
| Download: ML20092E233 (4) | |
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inte Office pre Correspondence m-, =moe.,
3 00l % Trn To John Lee, Duke Power Co.
Date February 4, % 3"'
-EA e From Walter Kulash and Jer Ref.:
1; 4 Sl l$9 Lutes, PRC Voorhees
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,i Subject Results of Evacuation Time Studies for Catawba EPZ i
The attached exhibit sunanarizes the results of our Catawba evacuation studies to date. We looked at two cases -- one in which people try to leave the area as quickly as they can, and another in which they try to drive to their. designated reception center.
In both cases we assume that traffic is centrolled in accordance with measures suggested on January 18 by representatives of the South Carolina Highway Patrol and the York County Sheriff's Department. The routes used to the reception center were those reconsnanded on January 18 by Bill McSwain, plus a route from Sectors B-1 and B-2 to Lancaster via I-77.
We found that if people try to, get out of the EPZ as quickly as possible (which means some South Carolineans crossing into North Carolina), the EPZ can be cleared in about four hours. All parts except the Rock Hill area will be evacuated in three hours or less. In this scenario, the Rock Hill area is the only part of the EPZ in which traffic congestion significantly affects evacuation time.
If all South Carolina residents travel directly to their reception centers,-
the time to evacuate the entire EPZ increases by half an hour, a 12 percent increase. Congestion is much more widespread in this case than in the first case, so the nu::.ber of person-hours of potential exposure is considerably greater. For the western half of the EPZ, evacuation time increases by about an hour and a half due to the small number of lanes leading toward the reception centers. The most cr.,ngestion in the western part of.the EPZ occurs in downtown Clover, where over 4,000 cars crowd onto SC 55, a single-lane road leading to Bethany. Comparable congestion occurs in the eastern half of the EPZ on all four routes leading from Rock Hill to Lewisville; but since congestion occurs on those routes in any event, assuming all evacuees travel directly to their evacuation centars adds only half an hour to the evacuation time from Rock Hill.
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Planning Research Corporation PRC Voorhees Duision of PRC Engineering 1500 Planning Research Drive McLean.VA 22102 703 556-2M0 TWX 710-8330966 t
Telex 248372.
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March 4, 1e33 Ref.:
- 719 Mr. John Lee, Jr.
Duke Power Ca v ny P. O. Box 33189 Charlotte, NC 28242 I
Dear Mr. Lee:
Attached are the evacuation times for individual sectors and groups of sectors, as requested by the South Carolina Emergency Preparedness j
Division. Times are given for both normal and adverse weather.
Very truly yours, l
l-Gerald S. Lutes Senior Associate i
GSL:he Enclosures O
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SECTOR COMBINATIONS FOR EVACUATION IN SOUTH CADOLINA l
Normal Weather Se' vere Weather 1.
AO by itself 3:25 3:25 AO plus B1 3:25 3:25 3:25 3:25 l
AO plus C1 3:25 3:25 AO plus D1 3:25 3:25 AO plus El 3:25' 3:25 AO plus F1 2.
B2 3:25 4:00 C2 4:00 6:15 D2 3:25 3:25 E7 3:25 3:25 3:25 3:25 F2 3.
B2 and C2 4:00 6:15 C2 and D2 4:00 6:15 3:25 3:25 D2 and E2 3:25 3:25 E2 and F2 3:25 3:25 4.
AO plus 31 and C1 3:25 3:25 AO plus C1 and D1 3:25 3:25 AO plus D1 and El 3:25 3:25 AO plus El and F1 5.
Ao plus B1, B2, C1 and C2 4:00 6:15 4:00 6:15 AO plus C1, C2, D1 and D2 3:25 3:25 AO plus Dl, D2, El and E2 3:25 3:25 AO plus El, E2, F1 and F2
- NOTE:
These times will be needed for normal an'd adverse weathers.
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