In almost every case, the number of crashed dropped after cameras began monitoring the intersections. This study confirms the safety aspect of red light cameras, resulting from changes in driver behavior.
To view the full A&M report, copy and paste this address into your browser: http://tti.tamu.edu/wp/wp-content/uploads/2011/07/Evaluation_of_Photographic_Traffic_Signal_Enforcement_Systems_in_Texas.pdf