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

  • MetSense camera aids winter road maintenance
    March 10, 2014
    Swedish company MetSense will be at Intertraffic Amsterdam to highlight its complete sensor solutions for winter road maintenance, and will present MetSense 2DRoad, a multi-pixel camera system for detection of road status in two dimensions. When installed on a road weather station, the camera system can offer a visual image of one or several lanes of road with a semi-transparent overlay of current road condition, such as dry, wet, ice, or snow, in thousands of points on the road surface.
  • Impact of new European Directive on toll concessions: ASECAP conference
    February 5, 2015
    ASECAP, the European association of operators of toll road infrastructures is organising a high level conference to analyse the impact of the new European Directive on the award of concession contracts across Europe, focusing specifically on the transport sector. The conference, whose theme is Concession model, an efficient tool to foster growth across Europe: how to build a level-playing field to attract private investors, will be held on 30 March 2015 from 1030 to 1630 at the European Economic and Soc
  • Versatile cameras from Lumenera
    October 29, 2014
    Lumenera offers a wide range of cameras specifi cally designed for use in advanced transportation systems. Compact, lightweight, versatile, with onboard memory buffering, a choice of data interface and ruggedised for harsh environments, Lumenera’s cameras are ideally suited for transportation applications such as tolling, red light and speed enforcement and automated parking. Lumenera has selected the most innovative sensor technology, paired with unique optimisation to deliver excellent imag
  • Xerox makes transportation simple
    May 16, 2012
    To many, Xerox is nothing more than the ‘copy company’. For those who know better, they are now the largest provider of transportation services to governments around the world. Xerox is appearing in all sorts of unexpected places after their acquisition of Affiliated Computer Services (ACS) in 2010 and dropping the ACS name earlier this year. To help establish the company as a key player in the intelligent transportation world, Xerox chairman and CEO Ursula Burns will be the featured speaker at the 2012 ITS