Conference Interactive Program
To view the 2013 Annual Meeting Interactive Program
TRB 91st Annual Meeting (January 22-26, 2012)
Design and Assessment of Traffic Signal Priority for Transit
Jan 24 2012 8:30AM- 10:15AM
Marriott, Salon 2
Intelligent Preemption Control for Emergency Vehicles in Urban Corridors (12-0683)
Emergency Vehicle Preemption (EVP) has been enabling faster emergency response in 2 communities until congestion and gridlock prevent emergency vehicles from reaching the 3 preemptive detection range at equipped signalized intersections. This condition prevents 4 movement of non-emergency vehicles, which would otherwise move from the right of way 5 allowing emergency vehicles to proceed. Limited research has been done on the use of intelligent 6 preemption control, which has the ability to use real-time traffic information to minimize 7 emergency vehicle delays. The control technique presented in this paper uses vehicular queue-8 based offsets to adjust preemption time at downstream intersections along a response route. Use 9 of microscopic simulation has shown potential reduction in delays approaching 13 percent with 10 respect to traditional preemption techniques during peak-hours on an urban corridor.
Kamalanathsharma, Raj Kishore , Virginia Polytechnic Institute and State University
Hancock, Kathleen L., Virginia Polytechnic Institute and State University
Transportation Research Board. 500 Fifth St. NW, Washington, D.C. 20001
Copyright © 2012. National Academy of Sciences. All Rights Reserved.