This report examines what impact red light running camera enforcement has had on crashes and related crash severity at intersections. No new data collection or analysis was performed. The information base came from published literature, various websites, and from responses to a questionnaire distributed to those jurisdictions known or believed to have installed red light running camera systems. Based on the information acquired and reviewed for this effort, it appears that red light running automated enforcement can be an effective safety countermeasure. However, there is currently insufficient empirical evidence based on statistically rigorous experimental design to state this conclusively.