Chapter
Jun 20, 2016
Prioritizing Safety Projects with Confidence Using Two-Step Spatial Screening
Authors: W. Zhang [email protected], K. Hancock [email protected], Y. Wang [email protected], and H. Sardar [email protected]Author Affiliations
Publication: International Conference on Transportation and Development 2016
Abstract
Being able to pinpoint locations on the roadway network that have abnormally high frequency of severe crashes is the first step in developing a strategic plan that ensures high returns on safety investments. This paper presents a refined two-step spatial screening method that can quickly narrow down statewide crash data into a few 0.25 -square-mile areas that have the highest crash frequencies or cost for a selected type crash. The locations identified after the 2-step process are small and specific enough to afford detailed crash causation analysis. The process is simple and intuitive and quickly reveals the spatial trends of the crashes. This paper illustrates the methodology using statewide crash data from Washington, with examples of identifying high value locations in total crashes, rural area crashes, crash costs, and crashes involving teenager drivers.
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Published In
International Conference on Transportation and Development 2016
Pages: 329 - 340
Copyright
© 2016 American Society of Civil Engineers.
History
Published online: Jun 20, 2016
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Authors
Affiliations
Highway Research Engineer/Program Manager, Intersection Safety R&D, Office of Safety R&D, FHWA/Turner Fairbank Highway Research Center, HRDS-10, McLean, VA 22101. E-mail: [email protected]
Associate Professor, Via Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., 7054 Haycock Rd., Falls Church, VA 22043. E-mail: [email protected]
Postdoctoral Fellow, National Research Council, 6300 Georgetown Pike, HRDS-10, McLean, VA 22101. E-mail: [email protected]
Graduate Research Assistant, Via Dept. of Civil and Environmental Engineering, Virginia Polytechnic Institute and State Univ., 7054 Haycock Rd., Falls Church, VA 22043. E-mail: [email protected]
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
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