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

  • ITF study: shared mobility can cut congestion and CO2 emissions
    October 12, 2017
    A new ITF mobility study in Helsinki confirms that a combination of 6-seater shared taxis and taxi buses can carry out all of today’s car journeys in the city area with just 4% of the current number of privately owned vehicles. These shared mobility platforms also mean fewer changes, less waiting and shorter travel times compared to traditional public transport. In addition, the results confirm improved access to jobs and public services, most notably for citizens in areas with few such offers.
  • FSB responds to RAC Foundation figures on 8 million local authority parking penalties issued in UK
    October 26, 2017
    The Federation of Small Businesses (FSB) has responded to a report from the RAC Foundation which showed that 8 million local authority parking penalties are issued annually across England and Wales. This figure is included in the Automated Road Traffic Enforcement: Regulation, Governance and Use - for the RAC Foundation report by Dr Adam Snow, a lecturer in criminology at Liverpool Hope University.
  • ITS America appoints new technical editor
    April 24, 2013
    ITS America has chosen Dr John Miles as technical editor for a new web-based resource on ITS. With funding from the US Department of Transportation (USDOT), the society plans to publish in mid-2014 in partnership with the World Road Association (PIARC) on the latter’s website.
  • Here Technologies: location data sharing needs fundamental rethink
    March 7, 2018
    76% of 8,000 individuals surveyed across eight countries feel stressed or vulnerable about sharing their location data, according to a new study by Here Technologies (Here). The report highlighted concerns that companies are abusing public trust in how they gather and use location data, which it claims will mean a fundamental rethink is necessary to help consumers embrace new services such as autonomous cars. The respondents stated that insufficient controls for management of personal data along with