Bicycle Infrastructure Safety: A Review and Application of the Case-Control Methodology

Abstract

As of 2013 the City of Seattle has 44 miles of bike lanes installed on city roadways. The 2014 Seattle Bicycle Master Plan calls for many new miles of bike lanes, cycle tracks, and neighborhood greenways. This report examines the safety of each type of infrastructure and evaluates the pros and cons of the case-control methodology as a tool for determining the risk of bicycle-motor vehicle collisions. It is important to understand the safety implications of each type of infrastructure so that the City of Seattle can make informed decisions when planning for the bicycle network.