Engineering Countermeasures to Reduce Red-Light-Running

摘要

This report describes the factors that are associated with red-light running as well as several countermeasures that have been used to reduce its frequency. Initially, there is an examination of the red-light-running process in terms of the events necessary to precipitate a red-light-running event. Then, various engineering countermeasures are identified. Next, a before-after study is described. This study is intended to facilitate the evaluation of selected countermeasures and to calibrate a model for predicting the frequency of red-light-running. The data are then analyzed and the findings used to develop guidelines for selecting and evaluating engineering countermeasures.