Impact evaluation of camera enforcement for traffic violations in Cali, Colombia, 2008-2014

Accident; Analysis and Prevention
Diana Marcela Martínez-RuízMaría Isabel Gutiérrez-Martínez

Abstract

Cameras for detecting traffic violations have been used as a measure to improve road safety in different countries around the world. In Cali, Colombia, fixed cameras were installed in March 2012 on a number of roads and intersections. All camera devices are capable of detecting simultaneously the following traffic violations: driving over the speed limit, running a red light or stop sign, violation of the traffic ban schedule, and blocking the pedestrian crosswalk. To evaluate the impact of camera enforcement of traffic violations in Cali, Colombia. A quasi-experimental difference-in-differences study with before and after measurements and a comparison group was conducted. We observed 38 intervention areas and 50 comparison areas (250 m radius), during 42 months before and 34 months after the installation of cameras. Effects were estimated with mixed negative binomial regression models. In intervention areas, after 12 months, there was a reduction of 19.2% of all crashes and a 24.7% reduction of injury and fatal crashes. In comparison areas, this reduction was 15.0% for all crashes and 20.1% for injury and fatal crashes. After adjusted comparisons, intervention sites outperformed comparison sites with an additional yearly reduc...Continue Reading

Citations

Mar 4, 2021·Journal of Safety Research·Haojie LiGang Ren
Apr 20, 2021·Accident; Analysis and Prevention·Haojie LiHongliang Ding
May 27, 2021·Spinal Cord Series and Cases·Yalisma Andrea GiraldoFrancisco J Bonilla-Escobar
Dec 11, 2020·Burns : Journal of the International Society for Burn Injuries·Alexander Martinez-Blanco
Dec 28, 2019··Imma Widyawati Agustin, Imma Widyawati Agustin

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