Skip to main content

TTI study underscores safety benefits of red light cameras

New research claims that red light cameras help to reduce the number of crashes at intersections where they are installed. The study, although limited to Texas, is claimed to be one of the most extensive so far in the US, and researchers say the findings demonstrate that the automated enforcement method offers an effective means of preventing crash-related deaths and injuries. The 69-page report, - Evaluation of Photographic Traffic Signal Enforcement Systems in Texas - which is available at this link, is t
March 23, 2012 Read time: 2 mins
New research claims that red light cameras help to reduce the number of crashes at intersections where they are installed. The study, although limited to Texas, is claimed to be one of the most extensive so far in the US, and researchers say the findings demonstrate that the automated enforcement method offers an effective means of preventing crash-related deaths and injuries.

The 69-page report, - Evaluation of Photographic Traffic Signal Enforcement Systems in Texas - which is available at %$Linker: External 0 0 0 oLinkExternal this link Evaluation of Photographic Traffic Signal Enforcement Systems in Texas false http://tti.tamu.edu/wp/wp-content/uploads/2011/07/Evaluation_of_Photographic_Traffic_Signal_Enforcement_Systems_in_Texas.pdf false false%>, is the result of researchers examining more than 11,000 crash records at the 275 intersections statewide where cameras were in place, and comparing crash frequencies one, two and three years before and after installation of the cameras.

An overall reduction of 633 crashes recorded at those intersections represents an 11 per cent decline statewide. Red light-related crashes dropped by 25 per cent, and right-angle crashes (the most severe type) dropped by 32 per cent. The reductions were seen across the board on all types of roadways, including  business/primary roads, farm-to-market roads, interstate access roads, state highways and US highways.

In addition to assessing the cameras’ effectiveness according to roadway type, researchers also compared crash frequencies at different intervals before and after cameras were installed. The examination showed a 23 per cent drop from one year before to one year after cameras were put into use. The two- and three-year comparisons reflected reductions of 27 per cent and 21 per cent, respectively.

“These findings show clearly that red light cameras offer significant safety benefits,” says Troy Walden, the author of the TTI study. “Most important, they help prevent the most severe and deadly type of intersection crashes.”

According to US federal sources, red light running causes more than 100,000 crashes and 1,000 fatalities every year, and right-angle crashes account for 46 per cent of all intersection-related collisions.

Related Content

  • Connected Vehicle Technology Demonstration
    May 1, 2012
    Connected Vehicle Cooperative Safety Systems use 5.9 GHz Dedicated Short Range Communications (DSRC) to enable vehicle active safety systems which may help drivers avoid crashes. The United States Department of Transportation (US DOT) has partnered with the Crash Avoidance Metrics Partnership (CAMP) Vehicle Safety Communications 3 (VSC3) Consortium to research, develop and test the technologies that form the framework for these systems.
  • USDOT makes US$7 million available for multi-state projects
    February 14, 2013
    The US Department of Transportation (USDOT) is making funds available to existing and potential multi-state organisations and other agencies engaged in corridor transportation activities for participation in the Multi-state Corridor Operations and Management (MCOM) Program authorised by the Safe, Accountable, Flexible, Efficient Transportation Equity Act: A Legacy for Users (SAFETEA-LU). The purpose of the investment is to promote regional cooperation, planning, and shared project implementation for program
  • Vehicle tracking in New Hampshire saves time, improves efficiency
    February 2, 2012
    Provider Enterprises is the largest transportation company dedicated to special needs children in New Hampshire, US serving more than 1,500 children daily. Several years ago, the company decided to deploy GPS-based fleet tracking technology primarily to monitor the location of its 178-vehicle fleet for routing and quality-control purposes.
  • Powered two-wheelers and ITS
    April 4, 2012
    FEMA, the Federation of European Motorcycle Associations, has produced a special newsletter devoted to powered two-wheelers and ITS, by opening for the first time its pages to a panel of experts from across the field: top researchers in behavioural science and safety systems, members of the motorcycle industry, and officials from the European Commission in charge of transport and information technology. Together, they provide an in-depth insight to the best way forward to bring about a safer traffic environ