Evaluation of blue confirmation lights at signalized intersections in Overland Park, Kansas, to reduce red light running violations.

Details

• Creators:
  Lindheimer, Tomás E. ; Fitzsimmons, Eric J. ; Schrock, Steven D. ; Boakye, Kwaku
• Corporate Creators:
  University of Kansas. Dept. of Civil, Environmental and Architectural Engineering
• Subject/TRT Terms:
  • Signalized intersections
  • Red light running
  • Countermeasures
  • Traffic violations
  • Data analysis
  • Traffic data
  • Evaluation
  • Before and after studies
  • Red interval (Traffic signal cycle)
• Publication/ Report Number:
  K-TRAN: KU-13-5
• Resource Type:
  Tech Report
• Geographical Coverage:
  Kansas
• Corporate Publisher:
  Kansas. Dept. of Transportation. Bureau of Research
• Abstract:
  Red Light Running (RLR) is a safety concern for communities nationwide. The Federal Highway ; Administration (FHWA) reported that a total of 676 fatalities in 2009 were due to RLR. There are many ; strategies to mitigate RLR violations that fall in the categories of engineering, enforcement, or education. ; This research project focused on confirmation lights, a low-cost countermeasure which enhances ; enforcement at four-approach intersections. Confirmation lights were deployed at two intersections in ; Overland Park, Kansas. Traffic was observed at the treatment sites, nearby signalized intersections ; (spillover), and control sites. Traffic was recorded before deployment, 1 month after, and 3 months after ; deployment. A total of 14 intersections were recorded during the morning peak hours (7 a.m. to 9 a.m.) and ; the afternoon peak hours (4 p.m. to 6 p.m.) for a total of 583 hours of traffic video. A test of proportions ; showed that overall the confirmation lights did not significantly reduce RLR violations. A violation analysis ; showed that there was a global increase in RLR violations after deployment, indicating that other factors ; were involved in the increase of violations observed. Time into the red analysis showed that the majority of ; RLR violations occurred within 1 second into the red. The negative binomial regression model re-affirmed ; that the confirmation lights were not a significant factor in the RLR violations observed. The model showed ; that lane volume, presence of a right-turn lane, and traffic movement (left or through movement) were ; significant factors.
  More +
• Format:
  PDF
• Funding:
  C1944
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29493/dot_29493_DS1.pdf
• File Type:
  [PDF - 3.68 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:bc11c20ffa1bbeb4a919929f097b16ba1d0ce69e61590554d6d7150d64e9417a