Safe and Efficient Automated Freeway Traffic Control

Details

• Alternative Title:
  Safe and Efficient Automated Freeway Traffic Control - Phase 1 Final Report
• Creators:
  Coifman, Benjamin ; Yuan, Lu
• Corporate Creators:
  Ohio State University ; Carnegie Mellon University. Traffic21 Institute. Safety21 University Transportation Center (UTC)
• Corporate Contributors:
  United States. Department of Transportation. University Transportation Centers (UTC) Program ; United States. Department of Transportation. Office of the Assistant Secretary for Research and Technology
• Subject/TRT Terms:
  Connected And Automated Vehicles Connected Vehicles Emissions Reduction Freeways Highways Intelligent Transportation Systems Microscopic Traffic Flow Operations And Traffic Management Safety Safety And Human Factors Stop Waves Traffic Congestion Vehicle Emissions Vehicles And Equipment Vehicle Trajectories

  More +
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  Carnegie Mellon University. Traffic21 Institute. Safety21 University Transportation Center (UTC)
• Abstract:
  The goal of this work is to eliminate unexpected stops to improve safety with the added benefit of reducing accelerations to improve fuel efficiency and reduce vehicle emissions. Congested traffic is characterized by signals and waves propagating upstream through the queued traffic. Freeway drivers do not expect to encounter abrupt drops in speed or stopped traffic, as a result, shockwaves sharply increase the accident rates, particularly in the context of rear end collisions. This work seeks to use connected and automated vehicles (CAV) to smooth out traffic disturbances on a freeway. The CAV integrates the instantaneous state information from the downstream vehicles to forecast the trajectory of the CAV's leader and proactively respond to changes in state that have not yet reached the lead vehicle. Using empirical vehicle trajectory data, it is shown that the methodology can rapidly nullify stop and slow waves and yield large reduction in vehicle emissions.
• Format:
  PDF
• Funding:
  69A3552344811
• Collection(s):
  University Transportation Centers
• Main Document Checksum:
  urn:sha-512:33ff1d8619389124df4cc7645a5a94eecc49750da5890fe6c23023e02d065ad0cbc03cbfadb7d4de761c8688fd61abb2e4440f4047baa15f8d12ffd02096ea49
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/77501/dot_77501_DS1.pdf
• File Type:
  [PDF - 4.30 MB ]