ML20235D801
| ML20235D801 | |
| Person / Time | |
|---|---|
| Site: | Shoreham File:Long Island Lighting Company icon.png |
| Issue date: | 07/23/1987 |
| From: | Jillson G, Snow E NEW YORK, STATE OF |
| To: | |
| References | |
| OL-3-S-002, OL-3-S-2, NUDOCS 8709250353 | |
| Download: ML20235D801 (2) | |
Text
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PLANNING DIVISION ~
NEW YORK STATE DEPARTMENT OF TRANSPORTATION i.
4 l TRANSPORTATION"ANALVSIS F5hRh,
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March 1982
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AUTHOR:
Edward J. Snow and Gloria'Jillson-
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TITLE:;_ Accuracy, Cost, and Respons'iveness.of ConEinuous Traffic ; Counting Systems: 'A Report on the Burnt Hills (Glenville) Rt. 50, Telemetry' 5,3 i "i
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' Demonstration Project ~
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ABSTRACT: This report summarizes a recent field test by the New York Statej
- 47 Department of Transportation to evaluate the accuracy,~ responsive-p,, J ness, and cost of mechanical versus telephone-based' continuous...
count systems.. An existing continuous ' counter was simultaneously, f! [ K
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tested with the existing mechanical system, a modern solid-state I
telephone based system, road tubes, and manual counts. 'Results~a-showed that there is considerable difference among counts obtained by different methods.
For an hour, the variation may; be as much as 20%, daily variation ae uruch as 2%., Road._tubel,,
counters were f,ound t'o oilerc~ount 'veh'icles 'because of the error.
- caused by multi-axle trucks. The telemetry counter delivered.
highly accurate daily / weekly / monthly totals within-24 hours of
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collection, while the mechanical counter using pick-up tapes-was much slower. The telemetry system was equivalent to the' mechanical system in cost of equipment, much cheaper on labor,
l but slightly more expensive on service.
Over the life of the I
system, a telemetry system would be 47% cheaper than the mechanical system, more reliable, and probably easier to maintain.
The analysis suggests that the telemetry system is superior to the existing mechanical based system in all respects, but that further pilot studies should be undertaken to prepare for the implementation of this modern approach.
TRAVEL AND ENVIRONMENTAL STATISTICS TR ANSPORTATION SYSTEMS INVENTORIES l
TRAVEL AND ENERGY FORECASTING UREAN AREATRAVEL ANALYSIS I,
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New York State Department of Transportation William C. Hennessy, Commissioner Planning Division State Campus Albany, New York 12232 TP 442a (1/82) 92 2
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