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

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. The authors 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 reduction of 5.3% (p = 0.045) for all crashes. 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.

• Record URL:
  https://doi.org/10.1016/j.aap.2019.02.002
• Record URL:
  http://www.sciencedirect.com/science/article/pii/S0001457519301964
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00014575
• Supplemental Notes:
  • © 2019 Elsevier Ltd. All rights reserved. Abstract reprinted with permission of Elsevier.
• Authors:
  • Martínez-Ruíz, Diana Marcela
  • 0000-0003-3205-0785
  • Fandiño-Losada, Andrés
  • 0000-0002-3385-7380
  • Ponce de Leon, Antonio
  • Arango-Londoño, David
  • Mateus, Julio Cesar
  • 0000-0001-7760-7423
  • Jaramillo-Molina, Ciro
  • Bonilla-Escobar, Francisco Javier
  • 0000-0002-0224-3482
  • Vivas, Harvy
  • Vanlaar, Ward
  • Gutiérrez-Martínez, María Isabel
• Publication Date: 2019-4

Language

• English

Media Info

• Media Type: Web
• Features: Appendices; Figures; References; Tables;
• Pagination: pp 267-274
• Serial:
  • Accident Analysis & Prevention
  • Volume: 125
  • Issue Number: 0
  • Publisher: Elsevier
  • ISSN: 0001-4575
  • Serial URL: http://www.sciencedirect.com/science/journal/00014575

Subject/Index Terms

• TRT Terms: Impact studies; Traffic law enforcement; Traffic safety; Traffic violations; Video cameras
• Uncontrolled Terms: Photo enforcement
• Geographic Terms: Cali (Colombia)
• Subject Areas: Highways; Operations and Traffic Management; Safety and Human Factors;

Filing Info

• Accession Number: 01703161
• Record Type: Publication
• Files: TRIS
• Created Date: Apr 26 2019 4:59PM