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

  • Adaptive cruise control would suppress traffic instability
    March 20, 2014
    Professor Berthold Horn of Massachusetts Institute of Technology believes a modified adaptive cruise control could mitigate phantom traffic jamsthat occur for no apparent reason. The phenomenon of the phantom traffic jam is all too common: they appear for no apparent reason and, having caused frustrating delays for all travelers, evaporate for an equally mystical reason. Phantom traffic jams usually occur on busy highways and often take the form of repeatedly stopping and then accelerating up to near the
  • 15 nominees confirmed for Intertraffic Amsterdam Innovation Award 2018
    January 30, 2018
    An international jury of transportation experts have shortlisted 15 candidates across the five categories: Infrastructure, Traffic Management, Safety, Parking and Smart Mobility for the Intertraffic Amsterdam Innovation Award 2018. The final winners will be announced at the opening ceremony of the three day event, which will take place from 20-23 March. Under Infrastructure, Saedi has been selected for its FlexLight Bollard, which is designed with the intention of combining the advantages of different kind
  • Kapsch piloting in New York
    May 21, 2012
    New York roadways are safer and more secure thanks to a recent deployment of a series of 5.9 GHz vehicle transponders in commercial trucks that travel the state’s highways. Vehicles equipped with the Kapsch Dedicated Short Range Communication (DSRC) Real-Time Clearance system will be able to electronically report the driver’s identity, the fleet company’s safety record and the vehicle’s health and condition.
  • A warm welcome to CARTES Secure Connexions Event 2013
    November 19, 2013
    Welcome to this 28th edition of CARTES Secure Connexions Event - nearly 30 years of enabling global synergies at a human and technological level CARTES is the world’s leading exhibition dedicated to secure solutions for payment, identification and mobility. Since its creation in Paris in 1985, CARTES has become the industry’s premier show – and this 2013 edition brings together more than 450 exhibitors who have come to present their products and services to 20,000 visitors from 140 countries.