• J Safety Res · Feb 2018

    Built environment effects on bike crash frequency and risk in Beijing.

    • Peng Chen, Feiyang Sun, Zhenbo Wang, Xu Gao, Junfeng Jiao, and Zhimin Tao.
    • Department of Transportation Engineering, Tongji University, Shanghai, China; Department of Urban Design and Planning, University of Washington, Seattle, USA.
    • J Safety Res. 2018 Feb 1; 64: 135-143.

    IntroductionBuilding a safe biking environment is crucial to encouraging bicycle use. In developed areas with higher density and more mixed land use, the built environment factors that pose a crash risk may vary. This study investigates the connection between biking risk factors and the compact built environment, using data for Beijing.MethodIn the context of China, this paper seeks to answer two research questions. First, what types of built environment factors are correlated with bike-automobile crash frequency and risk? Second, how do risk factors vary across different types of bikes? Poisson lognormal random effects models are employed to examine how land use and roadway design factors are associated with the bike-automobile crashes.ResultsThe main findings are: (1) bike-automobile crashes are more likely to occur in densely developed areas, which is characterized by higher population density, more mixed land use, denser roads and junctions, and more parking lots; (2) areas with greater ground transit are correlated with more bike-automobile crashes and higher risks of involving in collisions; (3) the percentages of wider streets show negative associations with bike crash frequency; (4) built environment factors cannot help explain factors contributing to motorcycle-automobile crashes.Practical ApplicationsIn China's dense urban context, important policy implications for bicycle safety improvement drawn from this study include: prioritizing safety programs in urban centers, applying safety improvements to areas with more ground transit, placing bike-automobile crash countermeasures at road junctions, and improving bicycle safety on narrower streets.Copyright © 2018 National Safety Council and Elsevier Ltd. All rights reserved.

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