Research Papers

An Impact Assessment of Intersection Design and Operational Elements on Red-light Running

Version 1
Date added June 18, 2019
Downloaded 0 times/fois
Category 2019 CARSP XXIX Calgary
Tags Research and Evaluation, Session 1A
Author/Auteur Henderson
Stream/Volet Research and Evaluation

Slidedeck Presentation Only:



Background/Context: Red-light running is a driver behavior that can lead to collisions involving motorists, cyclists and pedestrians. Angle collisions caused by red-light running typically result in more severe injuries to roadway users (compared to other collision types) and represents 10% of collisions at traffic signals in the Region of Waterloo. Aims/Objectives: This study attempts to identify roadway design elements and operational practices that may contribute to red-light running behaviour at traffic signals. The information resulting from this study may be helpful in altering future intersection design and operational practices resulting in less red-light running, collisions, injuries and fatalities.


Step 1 - Categorize the Region of Waterloo's inventory of 16 intersections operating with red-light cameras by geometric elements (e.g. 3-leg, 4-leg, grade), as well as operational elements (e.g. 1-way, 2-way, speed limit, operating speed, traffic signal mode of operation).

Step 2 (Optional) - Consider additional sample data from other municipalities in Ontario operating red-light cameras.

Step 3 - Obtain historical red-light camera data.

Step 4 - Compare red-light running data (e.g. rate, frequency, intrusion time) within each respective geometric and operational category.

Results/Activities: To be determined

Discussion/Deliverables: To be determined Conclusions: Geometric and operational elements associated with increased red-light running (rate, frequency and intrusion time) will be documented based on the study of intersections operating with red-light cameras.