Evaluation of the Optimized Policies for Adaptive Control Strategy

Details

• Corporate Creators:
  Farradyne Systems, Inc.
• Contributors:
  Cohen, S.L.
• Corporate Contributors:
  United States. Federal Highway Administration. Office of Safety and Traffic Operations R&D
• Subject/TRT Terms:
  • Field tests
  • Highway traffic control
  • Policy
  • Traffic signal timing
  • Traffic signals
  • Vehicle detectors
• Publication/ Report Number:
  FHWA-RD-89-135
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Highway Administration
• Abstract:
  The OPAC strategy is an on-line traffic signal control algorithm designed to optimize the performance of traffic signals at isolated intersections using delay as the performance criterion. OPAC-RT is a traffic signal control system which implements the OPAC strategy in real time. The system uses traffic data collected from detectors located well upstream (400 to 600 ft) of the stop bar on all approaches to an intersection. Optimum signal timing is determined using minimum and maximum green constraints and does not require a fixed cycle length. This report describes three field tests of the on-line OPAC strategy. The results indicate that OPAC performs better than well timed actuated signals, particularly at greater demand levels.
• Format:
  PDF
• Funding:
  DTFH61-86-C-00054
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/68273/dot_68273_DS1.pdf
• File Type:
  [PDF - 1.82 MB]
• Collection(s):
  Federal Highway Administration
• Main Document Checksum:
  urn:sha-512:5e465c62b467f69133371b562aec074f5491ca001ad2dec23ea67598aeb90aa031427c096e51c59ce9e5d792d36219967c8ec3e0f5d21b8cbfaf54c7de28df98