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

  • Limited places remaining for FIRM15 infrastructure meeting
    March 31, 2015
    The FEHRL Infrastructure Research Meeting 2015 (FIRM15) will be held on 22 and 23 April 2015 at the Diamant Centre in Brussels, Belgium. Held every two years, for the first time FIRM15 is opening up to all transport modes with speakers and participants from the rail sector. With the theme of ‘Innovative maintenance of Transport Infrastructure: Faster, cheaper, more reliable, safer and greener’, FIRM15 aims at mapping the problems and challenges of innovative maintenance of transport infrastructure;
  • User based insurance is helping good drivers and identifying the bad ones
    November 28, 2013
    Thomas Hallauer gives an overview of Usage Based Insurance (UBI), an industry that is putting telematic devices into more vehicles than fleet management ever did. The insurance market is going through a transformation phase never seen before. Insurers have not only started to track individual cars for Usage Based Insurance (UBI), they are also using the technology to enhance consumer services as more drivers join up to these schemes. Progressive Insurance in the US has 1.4 million customers signed up to
  • Signal Group launches C5000 intersection control system
    March 20, 2018
    Signal Group is launching a new traffic control product, called the C5000 intersection control system, here at Intertraffic. The company says it has taken its proven US technology from the ATC line of traffic controllers and SG line of safety monitors and created an all-in-one unit. The new unit, along with its paired power distribution assembly, can deliver world-class traffic control in an integrated card-rack based form factor. This initial launch configuration will drive up to 32 individual signal sets
  • Efkon’s technology aids Asfinag’s digital enforcement
    March 19, 2018
    Efkon arrives in Amsterdam having recently delivered what it says is the first enforcement system to monitor Austrian road operator Asfinag’s new digital motorway vignette. Before legislation came into effect on 1 December, a digital vignette went on sale which proves payment of the Austrian road tax for vehicles weighing less than 3.5t. To support Asfinag’s toll enforcement officers, the system uses video technology to determine whether passing cars have a valid digital vignette. Positioned on the