Crash history after installation of traffic signals : warranted vs. unwarranted.

Details

• Creators:
  Agent, Kenneth R. ; Green, Eric R.
• Corporate Creators:
  University of Kentucky Transportation Center ; Kentucky. Transportation Cabinet
• Subject/TRT Terms:
  • Traffic signals
  • Intersections
  • Warrants (Traffic control devices)
  • Right angle collisions
  • Rear end collisions
  • Crash analysis
  • Installation
  • Traffic signals
  • warrants
  • crashes
  More +
• Publication/ Report Number:
  KTC-08-01/SPR328-07-1I
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kentucky
• Corporate Publisher:
  University of Kentucky Transportation Center
• Abstract:
  The objective of this study was to determine the change in crash history at intersections after installation of a traffic signal. Signals installed based on the warrants from an engineering study resulted in a decrease in angle collisions with an increase in the less severe rear end collisions. At intersections where signal warrants were not met, there was a smaller decrease in angle collisions and a larger increase in rear end collisions. The removal of unwarranted traffic signals did not result in a crash problem. The analysis shows that the warrants given in the MUTCD should be followed when determining the need for a traffic signal installation with the installation based on an engineering study.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/21700/dot_21700_DS1.pdf
• File Type:
  [PDF - 237.36 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:4b007f57b7588ab89fce3e981b0e390ee311f9b757e2ae1e320e9c4cf92547ae5efa229032a280963e2836ef015ae3b6893b1d7f625e9ce0c157b16605b34173