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Consistent evidence: Speed cameras do reduce injuries and deaths, Australian study finds

Date:
October 8, 2010
Source:
Wiley-Blackwell
Summary:
Placing speed cameras on roads reduces the number of road traffic injuries and deaths, concludes a team of researchers from Australia.

Placing speed cameras on roads reduces the number of road traffic injuries and deaths, concludes a team of researchers from The University of Queensland, in Brisbane, Australia. Their findings are published this month in The Cochrane Library. Preventing road traffic injuries is of global public health importance.

The World Health Organization predicts that by 2020 road traffic crashes will have moved from ninth to third in the rank of causes of poor health. Speed cameras are one of the measures that authorities can use to reduce traffic speed in the hope of preventing road injuries. Their use has supporters and detractors, so the research team set out to investigate whether they are effective. They looked for studies that had assessed the impact of speed cameras on speeding, road crashes, crashes causing injury and fatalities.

After searching available literature, they identified 35 relevant studies. "While there is variation in the results, the overall finding is clear -- speed cameras do reduce injuries and deaths," says lead researcher Cecilia Wilson.

Compared with controls, the average speed fell as did the percentage of vehicles that exceeded local speed limits. The numbers of crashes in the areas of the cameras also fell, as did the numbers of people killed or injured.

Speed is a critical issue. Driving faster than the posted limit, or too fast for the prevailing conditions, increases the risk of crashes, and also the chance of those crashes causing more serious injury.

"Even though some of the studies were not conducted as carefully as others, the consistency in the way that vehicle speeds, crashes, road traffic injuries and deaths all reduced in places where speed cameras were operating shows that these cameras do a good job," says Wilson.

She points out that none of these studies were carried out in low-income countries, where most road traffic crashes occur, and calls for further research in these settings.


Story Source:

The above story is based on materials provided by Wiley-Blackwell. Note: Materials may be edited for content and length.


Journal Reference:

  1. Cecilia Wilson, Charlene Willis, Joan K Hendrikz, Robyne Le Brocque, Nicholas Bellamy. Speed cameras for the prevention of road traffic injuries and deaths. Cochrane Database of Systematic Reviews, 2010 (10): CD004607 DOI: 10.1002/14651858.CD004607.pub3

Cite This Page:

Wiley-Blackwell. "Consistent evidence: Speed cameras do reduce injuries and deaths, Australian study finds." ScienceDaily. ScienceDaily, 8 October 2010. <www.sciencedaily.com/releases/2010/10/101006085231.htm>.
Wiley-Blackwell. (2010, October 8). Consistent evidence: Speed cameras do reduce injuries and deaths, Australian study finds. ScienceDaily. Retrieved October 2, 2014 from www.sciencedaily.com/releases/2010/10/101006085231.htm
Wiley-Blackwell. "Consistent evidence: Speed cameras do reduce injuries and deaths, Australian study finds." ScienceDaily. www.sciencedaily.com/releases/2010/10/101006085231.htm (accessed October 2, 2014).

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