Study Details

Study Title: In-Service Evaluation of the Detection-Control System for Isolated High-Speed Intersections

Authors: Zimmerman and Bonneson

Publication Date: 2006

Abstract: An innovative detection-control system was developed for the Texas Department of Transportation to reduce both delay and crash frequency at rural intersections. This system was subsequently implemented at several intersections in Texas and its safety and operational benefits evaluated. This report documents the findings and conclusions reached as a result of a three-year implementation project. The Detection-Control System was installed and evaluated at each of five intersections in Texas during the three-year period. An evaluation of the before-and-after data indicated that the new detection-control system was able to reduce approach delay by 14 percent, stop frequency by 9 percent, red-light violations by 58 percent, heavy vehicle red-light violations by 80 percent, and severe crash frequency by 39 percent.

Study Citation: Zimmerman, K. and Bonneson, J., "In-Service Evaluation of the Detection-Control System for Isolated High-Speed Intersections." 2006 TRB 85th Annual Meeting: Compendium of Papers CD-ROM, Vol. TRB#06-1252, Washington, D.C., (2006)


CMFs Associated With This Study

Category: Intersection traffic control

Countermeasure: Provide Advanced Dilemma Zone Detection for rural high speed approaches

CMF CRF(%)QualityCrash TypeCrash SeverityRoadway TypeArea Type
0.61391 StarAllK,A,B,CNot specifiedRural