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Technical Report Documentation Page
|1. Report No.
|2. Government Accession No.||3. Recipient's Catalog No.|
|4. Title and Subtitle
GUIDE FOR SCALABLE RISK ASSESSMENT METHODS FOR PEDESTRIANS AND BICYCLISTS
|5. Report Date
|6. Performing Organization Code
Shawn Turner, Ipek Sener, Michael Martin, L.D. White, Subasish Das, Robert Hampshire, Mike Colety, Kay Fitzpatrick, and Ravi Wijesundera
|8. Performing Organization Report No.
|9. Performing Organization Name and Address
Texas A&M Transportation Institute, College Station, TX 77843-3135
University of Michigan Transportation Research Institute
Kimley-Horn and Associates, Inc.
|10. Work Unit No. (TRAIS)
|11. Contract or Grant No.
DFTH6116D00004, TTI Task
|12. Sponsoring Agency Name and Address
U.S. Department of Transportation
Federal Highway Administration
Office of Safety
1200 New Jersey Ave SE
Washington, DC 20590
|13. Type of Report and Period Covered
Task 4 Guide:
March 2017 - July 2018
|14. Sponsoring Agency Code
|15. Supplementary Notes
Government Task Manager: Tamara Redmon
This guide describes scalable risk assessment methods for pedestrians and bicyclists, wherein risk is a measure of the probability of a crash to occur given exposure to potential crash events. This guide outlines eight sequential steps to develop risk values at various desired geographic scales, and describes the scope and nature of each step, including any guiding principles.
Exposure to risk is an integral element of risk, and as such, an integral element of the pedestrian and bicyclist risk assessment methods in this guide. Exposure is a measure of the number of potential opportunities for a crash to occur, and is often directly related to the number of people who walk and bike. This guide provides information on analytic methods to estimate pedestrian and bicyclist exposure, and identifies other relevant guides and resources that provide supplemental information for exposure estimation. Depending upon the desired geographic scale, one or more of these three analytic methods can be used to estimate pedestrian and bicyclist exposure: 1) site counts; 2) travel demand estimation models (several different types); and, 3) travel surveys.
|17. Key Words
Pedestrian and bicyclist risk assessment, exposure, geographic scale, risk factors, pedestrian and bicyclist counts, demand estimation, national travel surveys
|18. Distribution Statement
|19. Security Classif.
(of this report)
|20. Security Classif.
(of this page)
|21. No. of Pages