Title page for ETD etd-08122010-124251


Type of Document Master's Thesis
Author Kamalanathsharma, Raj Kishore
URN etd-08122010-124251
Title Traffic Adaptive Offset-Based Preemption for Emergency Vehicles
Degree Master of Science
Department Civil Engineering
Advisory Committee
Advisor Name Title
Hancock, Kathleen L. Committee Chair
Abbas, Montasir M. Committee Member
Rakha, Hesham Ahmed Committee Member
Keywords
  • traffic adaptive
  • preemption
  • priority
  • intersection queues
Date of Defense 2010-08-10
Availability unrestricted
Abstract
This research analyzed and evaluated a new strategy for preemption of emergency vehicles along a corridor, which is route-based and adaptive to real-time traffic conditions. The method uses dynamic offsets which are adjusted using congestion levels to provide uninterrupted preempted green signal for the emergency vehicle throughout its route. By achieving a higher average emergency vehicle speed, this method promises faster emergency response which results in saving life and property as well as larger emergency service radius for the dispatch stations. The research evaluated the effectiveness of two possible algorithms for offset adjustment using measured vehicle queues. It is showed to reduce the emergency vehicle travel-time by 31 percent when compared to cases without preemption and 13 percent when compared to traditional method of individual-intersection preemption.
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