United States Department of Transportation
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Using archived data to measure operational benefits of ITS investments, volume 2 : region 1 incident response program.
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2004-06-01
[PDF-950.30 KB]
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Alternative Title:Region 1 incident response program
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OCLC Number:501016904
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Edition:Final report; June 2004
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NTL Classification:NTL-INTELLIGENT TRANSPORTATION SYSTEMS-INTELLIGENT TRANSPORTATION SYSTEMS;NTL-INTELLIGENT TRANSPORTATION SYSTEMS-Freeway Management;NTL-HIGHWAY/ROAD TRANSPORTATION-HIGHWAY/ROAD TRANSPORTATION;NTL-OPERATIONS AND TRAFFIC CONTROLS-OPERATIONS AND TRAFFIC CONTROLS;
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Abstract:The objective of this project is to use the existing data, surveillance and communications infrastructure (to the extent possible) to
develop two case study evaluations for Oregon, including an evaluation of the COMET incident management program and the
Portland ramp metering system. The COMET evaluation will include a thorough literature review of other incident management
program evaluations, as well as a determination of the costs and benefits of the program. Benefits will include reduction in
vehicular delay, fuel consumption and emissions due to early incident response, prevention of secondary accidents as well as
benefits stemming from public perceptions. To the extent possible, the existing ITS infrastructure, Oregon State Patrol computer
aided dispatch database and statewide accident database will be used as data sources to minimize the amount of new data
collection required. It is envisioned that one corridor will be selected for a focused analysis, using video surveillance to observe
actual incident durations and COMET response times. The ramp metering system case study will select a corridor (e.g., I-205)
where “before” and “after” data are available. The intent will be to measure savings in delay, emissions and fuel consumption
and safety improvements due to the implementation of the ramp metering system. Existing data sources are the ITS
infrastructure and the statewide accident database, thus no dedicated data collection program is necessary. These two case
studies will set a precedent for future evaluations of ITS programs. These evaluations are immediately feasible using existing
data sources.
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