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Journal article
Evaluation of road safety policies and their enforcement in Mexico City, 2015–2019: an interrupted time-series study
Injury prevention
12 Sep 2022
PMID: 36096653
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
BackgroundMexico City approved new road safety policies in 2015, which included lower speed limits and higher fines for traffic offences. In 2019, economic fines were replaced by a point penalty system among other changes. This study evaluates these policies on road traffic collisions, injuries and deaths.MethodsCollisions data came from insurance collision claims (January 2015 to December 2019) and road traffic deaths from vital registrations (January 2013 to December 2019). We conducted an interrupted time series analysis for each outcome using negative binomial regression models with an offset of insured vehicles (collisions) or total population (deaths). Then, we classified the 16 municipalities in the city into enforcement and no-enforcement groups based on presence or absence of automated traffic enforcement devices and conducted a controlled interrupted time series analysis.ResultsThe 2015 road safety policies had no effect on total collisions and collisions resulting in injury but were associated with a 0.2% (95% CI −0.3 to 0.0) decline in the mortality trend. The 2019 policies had no effect on total collisions but were associated with a 1.5% increase in the trend of collisions resulting in injuries and with a 2.7% (95% CI 1.0 to 4.5) increase in the mortality trend. Postpolicy trends in enforcement versus no-enforcement municipalities were not significantly different.ConclusionPolicies that included high economic penalties for speeding and dangerous behaviours were effective in decreasing traffic mortality while removing economic penalties and replacing them with a point penalty system were associated with an increase in collisions, resulting in injury and mortality.
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Details
- Title
- Evaluation of road safety policies and their enforcement in Mexico City, 2015–2019: an interrupted time-series study
- Creators
- Carolina Quintero Valverde - Center for Research in Nutrition and Health, National Institute of Public Health, Cuernavaca, MexicoCarolina Perez-Ferrer - Center for Research in Nutrition and Health, National Institute of Public Health, Cuernavaca, Mexico carolina.perez@insp.mx.Luis Chías Becerril - Institute of Geography, National Autonomous University of Mexico (UNAM), Mexico City, MexicoArmando Martínez Santiago - Institute of Geography, National Autonomous University of Mexico (UNAM), Mexico City, MexicoHéctor Reséndiz Lopez - Institute of Geography, National Autonomous University of Mexico (UNAM), Mexico City, MexicoJavier Prado Galbarro - Center for Research in Population Health, National Institute of Public Health, Cuernavaca, MexicoD. Alex Quistberg - Drexel UniversityAna V Diez Roux - Drexel UniversityTonatiuh Barrientos-Gutierrez - National Institute of Public Health
- Publication Details
- Injury prevention
- Publisher
- BMJ Publishing Group Ltd
- Grant note
- 205177/Z/16/Z / Wellcome Trust (http://dx.doi.org/10.13039/100010269) K01TW011782 / Fogarty International Center of the National Institutes of Health
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Urban Health Collaborative
- Web of Science ID
- WOS:000853817500001
- Scopus ID
- 2-s2.0-85140230413
- Other Identifier
- 991019187080204721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Public, Environmental & Occupational Health