Download or read book Evaluation of Blue Confirmation Lights at Signalized Intersections in Overland Park, Kansas, to Reduce Red Light Running Violations written by Tomas Lindheimer and published by . This book was released on 2015 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.