Reductions in injury crashes associated with red light camera enforcement in oxnard, california

Am J Public Health. 2002 Nov;92(11):1822-5. doi: 10.2105/ajph.92.11.1822.


Objectives: This study estimated the impact of red light camera enforcement on motor vehicle crashes in one of the first US communities to employ such cameras-Oxnard, California.

Methods: Crash data were analyzed for Oxnard and for 3 comparison cities. Changes in crash frequencies were compared for Oxnard and control cities and for signalized and nonsignalized intersections by means of a generalized linear regression model.

Results: Overall, crashes at signalized intersections throughout Oxnard were reduced by 7% and injury crashes were reduced by 29%. Right-angle crashes, those most associated with red light violations, were reduced by 32%; right-angle crashes involving injuries were reduced by 68%.

Conclusions: Because red light cameras can be a permanent component of the transportation infrastructure, crash reductions attributed to camera enforcement should be sustainable.

Publication types

  • Evaluation Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Accidents, Traffic / classification
  • Accidents, Traffic / prevention & control*
  • Accidents, Traffic / statistics & numerical data*
  • Automobile Driving / legislation & jurisprudence*
  • California / epidemiology
  • Control Groups
  • Humans
  • Law Enforcement*
  • Liability, Legal
  • Photography*
  • Program Evaluation
  • Regression Analysis
  • Risk Reduction Behavior
  • Social Control Policies
  • Wounds and Injuries / epidemiology
  • Wounds and Injuries / prevention & control