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Published, Version of Record (VoR)CC BY V4.0, Open
Journal article
Bicycle safety in Bogotá: A seven-year analysis of bicyclists’ collisions and fatalities
Accident analysis and prevention, v 144, 105596
Sep 2020
PMID: 32603927
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
•Standardized bicycling collision rates have decreased in Bogotá in the last 7 years.•Seven main geographic areas of bicycling risk were identified in Bogotá.•Risk factors associated with bicycling mortality differ by sex.•Findings support policy-making to implement targeted interventions to improve safety.•Methodology based on open-data sources to permit replication and monitoring.
Road safety research in low- and middle-income countries is limited, even though ninety percent of global road traffic fatalities are concentrated in these locations. In Colombia, road traffic injuries are the second leading source of mortality by external causes and constitute a significant public health concern in the city of Bogotá. Bogotá is among the top 10 most bike-friendly cities in the world. However, bicyclists are one of the most vulnerable road-users in the city. Therefore, assessing the pattern of mortality and understanding the variables affecting the outcome of bicyclists’ collisions in Bogotá is crucial to guide policies aimed at improving safety conditions. This study aims to determine the spatiotemporal trends in fatal and nonfatal collision rates and to identify the individual and contextual factors associated with fatal outcomes. We use confidence intervals, geo-statistics, and generalized additive mixed models (GAMM) corrected for spatial correlation. The collisions’ records were taken from Bogotá’s Secretariat of Mobility, complemented with records provided by non-governmental organizations (NGO). Our findings indicate that from 2011 to 2017, the fatal bicycling collision rates per bicyclists’ population have remained constant for females while decreasing 53 % for males. Additionally, we identified high-risk areas located in the west, southwest, and southeast of the city, where the rate of occurrence of fatal events is higher than what occurs in other parts of the city. Finally, our results show associated risk factors that differ by sex. Overall, we find that fatal collisions are positively associated with factors including collisions with large vehicles, the absence of dedicated infrastructure, steep terrain, and nighttime occurrence. Our findings support policy-making and planning efforts to monitor, prioritize, and implement targeted interventions aimed at improving bicycling safety conditions while accounting for gender differences.
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Details
- Title
- Bicycle safety in Bogotá: A seven-year analysis of bicyclists’ collisions and fatalities
- Creators
- Germán A. Carvajal - Universidad de Los AndesOlga L. Sarmiento - Universidad de Los AndesAndrés L. Medaglia - Department of Industrial Engineering, Center for Optimization and Applied Probability, Universidad de los Andes, Bogotá, Colombia.Sergio Cabrales - Department of Industrial Engineering, Center for Optimization and Applied Probability, Universidad de los Andes, Bogotá, Colombia.Daniel A. Rodríguez - Department of City and Regional Planning, Institute for Transportation Studies, University of California, Berkeley, USA.D. Alex Quistberg - Drexel UniversitySegundo López - World Resources Institute
- Publication Details
- Accident analysis and prevention, v 144, 105596
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Urban Health Collaborative
- Web of Science ID
- WOS:000564232200023
- Scopus ID
- 2-s2.0-85086895149
- Other Identifier
- 991019168477604721
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InCites Highlights
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Ergonomics
- Public, Environmental & Occupational Health
- Social Sciences, Interdisciplinary
- Transportation