TY  - JOUR
PY  - 2019//
TI  - Impact evaluation of camera enforcement for traffic violations in Cali, Colombia, 2008-2014
JO  - Accident analysis and prevention
A1  - Martínez-Ruíz, Diana Marcela
A1  - Fandiño-Losada, Andres
A1  - Ponce de Leon, Antonio
A1  - Arango-Londoño, David
A1  - Mateus, Julio Cesar
A1  - Jaramillo-Molina, Ciro
A1  - Bonilla-Escobar, Francisco Javier
A1  - Vivas, Harvy
A1  - Vanlaar, Ward G. M.
A1  - Gutiérrez-Martínez, María Isabel
SP  - 267
EP  - 274
VL  - 125
IS  - 
N2  - INTRODUCTION: 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. <br><br>OBJECTIVE: To evaluate the impact of camera enforcement of traffic violations in Cali, Colombia. <br><br>METHODS: 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. <br><br>RESULTS: 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 reduction of 5.3% (p = 0.045) for all crashes. <br><br>CONCLUSIONS: The use of cameras for detecting traffic violations seems to have a positive effect on the reduction of crashes in intervention areas. A beneficial spillover effect was found as well in comparison areas; but more evaluations are needed.<br><br>Copyright © 2019 Elsevier Ltd. All rights reserved.<p />  <p>Language: en</p>
LA  - en
SN  - 0001-4575
UR  - http://dx.doi.org/10.1016/j.aap.2019.02.002
ID  - ref1
ER  -