Kwan, I. and Mapstone, J. (2004) "Visibility aids for pedestrians and cyclists: a systematic review of randomised controlled trials", Accident Analysis & Prevention, Volume 36, Issue 3, May 2004, Pages 305-312. Research paper available for purchase from Science Direct
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This study aims to quantify the effect of visibility aids on the occurrence of pedestrian and cyclist–motor vehicle collisions and injuries, and drivers’ responses in detection and recognition. Trial reports were systematically reviewed according to predefined eligibility criteria, including randomised controlled trials or controlled before-and-after trials comparing visibility aids and no visibility aids, and of different visibility aids on pedestrian and cyclist safety, and drivers’ responses in detection and recognition. This included trials in which the order of interventions was randomised, or balanced using a Latin square design.