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Date
10-31-2025
Description
One of the most common locations for fatal motor vehicle-bicyclist crashes is at intersections, which inherently have a large number of turning conflicts. Reducing these conflicts is a key objective in improving intersection safety across all modes. Of particular concern for bicyclists’ safety at intersections are the conflicts between straight-through bicyclists and motor vehicle right-turns and opposing left-turns. The objective of this research was to develop guidance and tools for transportation practitioners to use to reduce turning conflicts between motor vehicles and bicycles at controlled intersections and improve the safety and comfort of intersections for bicyclists.
Biographical Information
Jason C. Anderson is a senior research associate and adjunct instructor at Portland State University. Dr. Anderson’s expertise is in data analytics, with an emphasis on transportation safety, travel behavior, big data, and transportation policy. His work on policy-related research has led Oregon and local agencies to develop and maintain safety programs and treatments for freight transportation, active transportation, and speeding mitigation. Dr. Anderson’s research on transportation safety has helped advance fundamental knowledge on various factors that influence the risk and severity of freight and active transportation-related crashes, and the impacts of speed limit regulatory changes on driver behavior and safety. Dr. Anderson focuses on innovative strategies to generate multidisciplinary solutions to technology-driven questions related to transportation engineering.
Dr. Sirisha Kothuri is a senior research associate in the Department of Civil and Environmental Engineering at Portland State University. Dr. Kothuri's primary research interests are in the areas of multimodal traffic operations, bicycle and pedestrian counting, and safety.
Subjects
Bicycle lanes -- Safety measures, Traffic safety -- Research, Traffic conflicts -- Transportation -- Prevention, Cyclists -- Accidents -- Prevention
Disciplines
Transportation | Urban Studies | Urban Studies and Planning
Persistent Identifier
https://archives.pdx.edu/ds/psu/44248
Recommended Citation
Anderson, Jason C. and Kothuri, Sirisha, "Reducing Motor Vehicle – Bicycle Conflicts at Controlled Intersections" (2025). PSU Transportation Seminars. 265.
https://archives.pdx.edu/ds/psu/44248