Studies, Reports and News
About Photo Enforcement
These are copies of the full length original reports. The first link is to a document that was put together to summarize most of the studies listed. You can read the full text by selecting the study of interest.
A condensed synopsis of a host of major photo enforcement studies that have been done over the past few years.
Photo Enforcement Final Report
City of Winnipeg Audit Departments review of Winnipeg's photo enforcement program
Side
effects of speed cameras and speed camera policy
A British publication listing 40 unstudied side effects to speed camera and associated policy
AAA Of Michigan Road Safety Report
Study done by AAA of Michigan that shows better results are achieved through proper engineering then with photo enforcement with the add bonus of improved traffic flow.
2001 report by the Majority Leader of the House of Representatives
"The changes in the yellow signal timing regulations have resulted in the inadequate yellow times. And these inadequate yellow times are the likely cause of almost 80 percent of red light entries."
2003 Ontario Ministry of Transportation study
"Compared to the average number of reported collisions occurring in the before period, the average yearly number of reported collisions increased 15.1 per cent in the after period."
"The cameras are correlated with an increase in total crashes of 8% to 17%."
"The analysis shows that the number of crashes at locations with cameras more than doubled, from 365 collisions in 1998 to 755 last year. Injury and fatal crashes climbed 81 percent, from 144 such wrecks to 262. Broadside crashes, also known as right-angle or T-bone collisions, rose 30 percent, from 81 to 106 during that time frame."
2004 North Carolina A&T University study
"Our findings are more pessimistic, finding no change in angle accidents and large increases in rear-end crashes and many other types of crashes relative to other intersections."
A 1995 Australian Road Research Board study
"The results of this study suggest that the installation of the RLC at these sites did not provide any reduction in accidents, rather there has been increases in rear end and adjacent approaches accidents on a before and after basis and also by comparison with the changes in accidents at intersection signals."
Reduced Speed Limits in School Zones, Manitoba legislator Sept. 28th 1995
A rejection of a proposed school zone speed reduction due to lack of any evidence showing there is a need or that it would provide any safety improvements.
Fairfax Virginia Yellow light test
Study proving that the lengthening of yellow light cycles has a large and permanent positive effect on reducing red light running violations.
A 2004 Texas Transportation Institute study found:
"An increase in yellow
duration of 1.0 seconds is associated with a [crash frequency] of
about 0.6, which corresponds to a 40 percent reduction in crashes."