Congestion-based emergency vehicle preemption.

Details

• Creators:
  Kamalanathsharma, Raj Kishore ; Hancock, Kathleen L.
• Corporate Creators:
  Virginia Polytechnic Institute and State University
• Corporate Contributors:
  United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Traffic congestion
  • Emergency vehicles
  • Traffic signal preemption
  • Emergency response time
  • Offsets (Traffic signal timing)
  • Algorithms
  • Travel time
  • Emergency vehicles
  • Traffic signal preemption
  • Travel time (Traffic engineering)
• Publication/ Report Number:
  VT-2009-04
• Resource Type:
  Thesis
• Geographical Coverage:
  United States
• Edition:
  Final report.
• Corporate Publisher:
  Mid-Atlantic Universities Transportation Center
• 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.
• Format:
  PDF
• Funding:
  DTRT07-G-0003
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/25651/dot_25651_DS1.pdf
• File Type:
  [PDF - 2.74 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ff71c206ba5c0286e55004420f1519b4eb85e58539074c1f60b108704324a8d712be2b6ba4d6195fc06907fb87e88cc06faeaaa15ebbb0ab185055ca0b173cb1