Skip to main content

Study finds red-light cameras reduce crashes

A study carried out by Baton Rouge, Louisiana’s Department of Public Works shows drops in both traffic crashes and violations at selected intersections in the five years since the city launched a traffic light camera program. The study evaluated intersections where traffic cameras were installed in 2008 and 2009 by comparing the average number of crashes in the years before and after the cameras took effect, and showed a sharp decline in right-angle crashes - considered the most dangerous type of collisions
July 3, 2013 Read time: 2 mins
A study carried out by Baton Rouge, Louisiana’s Department of Public Works shows drops in both traffic crashes and violations at selected intersections in the five years since the city launched a traffic light camera program.

The study evaluated intersections where traffic cameras were installed in 2008 and 2009 by comparing the average number of crashes in the years before and after the cameras took effect, and showed a sharp decline in right-angle crashes - considered the most dangerous type of collisions - but also showed slight increases in rear-end crashes.

There was an average of 69 right-angle crashes in total at intersections in 2006 and 2007; when cameras were installed in 2008, right-angle crashes at those locations dropped to a combined average of 41 per year for the years 2009 through 2011, or a decline of 40 per cent.

In the same time frame, rear-end collisions for the designated intersections increased by 4 percent and total injuries for all collisions dropped 15 per cent.

Of 19 intersections that still have traffic cameras, 13 showed reductions in traffic light violations between the first year they were installed and 2012, according to data provided by 17 American Traffic Solutions, the company overseeing the city-parish camera program.

For more information on companies in this article

Related Content

  • Automating seat belt compliance a priority for road safety
    February 2, 2012
    Finland's VTT is developing a mobile, automated seatbelt compliance system. Here, the organisation's Matti Kutila discusses progress
  • ATS study claims distracted red-light running is on the rise
    April 22, 2016
    Analysis released during National Distracted Driving Awareness Month by American Traffic Solutions (ATS), Distracted on Red, showcases the dangers of distracted driving behaviour and impact on red-light running. ATS sampled data from 67 intersections with red-light safety cameras across the United States over a three-month period. Distractions were coded into several categories, including cell phone use, looking away, eyes closed, smoking, eating/drinking, reading and applying make-up. ATS data showed distr
  • German authorities use CB-radio message to reduce accidents in roadworks
    April 8, 2014
    Citizen Band radio is proving useful to prevent accidents in Germany’s roadworks. In common with other German Länder (federal regions) with large volumes of commercial vehicles using their trunk road networks, Bavaria had been experiencing high levels of road traffic accidents (RTAs) involving heavy trucks in the vicinity of minor motorway maintenance sites. This was despite the extensive visual warning regulations published in the German federal road safety audit (RSA) guidelines for the protection of site
  • ITS technology reduces congestion, improves workzone safety
    July 17, 2012
    As the road-building season gets under way in the US, the Federal Highway Administration has just published a White Paper which deals with the use of ITS technology in work zones. On 30 April 2009, the US Federal Highway Administration (FHWA) published a White Paper which was prepared by the US Department of Transportation (USDOT) to inform public agencies about the use of ITS to manage construction work zones. This is a particularly relevant topic given the large number of construction projects that are ex