Camera accident studies 'lack rigour'

Most speed camera studies across the world fail to provide robust evidence about their effectiveness in reducing accidents, according to a review published in the British Medical Journal. "The level of evidence is relatively poor, as most studies lack adequate comparison groups," conclude Paul Pilkington, a lecturer in public health at the University of the West of England, and Sanjay Kinra, a lecturer in epidemiology at the University of Bristol. Effectiveness of speed cameras in...

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