Bicycle and pedestrian safety in the highway safety manual : final report.
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2016-07-01
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Abstract:An accurate understanding of the expected effectiveness of bicycle and pedestrian safety
countermeasures is needed to support decisions about how to best allocate limited public
resources to increase safety for non-motorized users. However, the kind of data necessary for
developing Highway Safety Manual (HSM)–style safety performance functions for bicycle and
pedestrian treatments are not currently available. Limited research has been done to date about
the impact of bicycle and pedestrian treatments, and most studies are not robust enough to draw
broad conclusions. Most agencies surveyed valued safety as a key component of their decision to
implement infrastructure, but most did not collect enough exposure and crash data to adequately
assess the safety impacts. The two major challenges in using crash records for bicycle safety
research are that crashes in general and cyclist crashes specifically are underreported, and
pedestrian and bicycle crashes are rare events. Therefore, GDOT should pursue case-control
approaches in the immediate and build toward more robust data collection, including new sources
for bicycle and pedestrian crash data, counts for exposure data, and site-specific before-and-after
treatment data collection.
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