Intelligent Preemption Control for Emergency Vehicles in Urban Corridors
Emergency Vehicle Preemption (EVP) has been enabling faster emergency response in communities until congestion and gridlock prevent emergency vehicles from reaching the preemptive detection range at equipped signalized intersections. This condition prevents movement of non-emergency vehicles, which would otherwise move from the right of way allowing emergency vehicles to proceed. Limited research has been done on the use of intelligent preemption control, which has the ability to use real-time traffic information to minimize emergency vehicle delays. The control technique presented in this paper uses vehicular queue-based offsets to adjust preemption time at downstream intersections along a response route. Use of microscopic simulation has shown potential reduction in delays approaching 13 percent with respect to traditional preemption techniques during peak-hours on an urban corridor.
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Supplemental Notes:
- This paper was sponsored by TRB committee AHB25 Traffic Signal Systems
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Corporate Authors:
500 Fifth Street, NW
Washington, DC United States 20001 -
Authors:
- Kamalanathsharma, Raj Kishore
- Hancock, Kathleen L
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Conference:
- Transportation Research Board 91st Annual Meeting
- Location: Washington DC, United States
- Date: 2012-1-22 to 2012-1-26
- Date: 2012
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: 16p
- Monograph Title: TRB 91st Annual Meeting Compendium of Papers DVD
Subject/Index Terms
- TRT Terms: Clearance interval (Traffic signal cycle); Emergency vehicles; Microsimulation; Real time information; Traffic congestion; Traffic signal preemption
- Subject Areas: Data and Information Technology; Highways; Operations and Traffic Management; I71: Traffic Theory; I73: Traffic Control;
Filing Info
- Accession Number: 01368388
- Record Type: Publication
- Report/Paper Numbers: 12-0683
- Files: TRIS, TRB
- Created Date: Apr 25 2012 8:00AM