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An explanatory mechanism for right-hook crashes at signalized intersections
Oregon State University.
Portland State University.
Oregon State University.
Oregon State University.
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2016 (English)Conference paper (Refereed)
Abstract [en]

Bicycle-motor vehicle conflicts are common at intersections and one of the most common conflict is with right-turning vehicles and through bicycles. At intersections in the U.S. without space for both a separate right-turn and bicycle lane, bicyclists are often to the right of motorists as they approach an intersection. In these situations, motorists often fail to search for bicyclists, search but don’t notice approaching bicyclists, or misjudge the gap of the approaching bicyclist. In addition, bicyclists do not always position themselves to be readily seen or approach at high rates of speed. Bicycle-motor vehicle crashes involving right-turning vehicles and through-moving bicycles have been typed as “the right-hook.” The overall goal of the research in this presentation was to quantify the safety performance of alternative traffic control strategies to mitigate right-turning vehicle-bicycle crashes at signalized intersections. The ultimate aim was to provide useful design guidance to potentially mitigate these collision types at the critical intersection configurations. The research was focused on design situations present in Oregon, U.S.A. though the work is applicable to many other jurisdictions and countries with similar configurations. The objectives of the research were: 1. To comprehensively analyze the literature and to develop an understanding of the known crash mechanisms; 2. To analyze crash records and to develop an understanding of the frequency of the crash problem at intersections and guide the design of the simulator experiment; 3. To address the identified gaps in the literature and develop a fundamentally better understanding of driver and bicyclist interactions during right-turning events at signalized intersections in a driving simulator; 4. To validate the driver performance and gap selection in the driving simulator with field observations.

Place, publisher, year, edition, pages
Linköping: Statens väg- och transportforskningsinstitut, 2016. 1-3 p.
National Category
Vehicle Engineering
Research subject
URN: urn:nbn:se:vti:diva-10625OAI: diva2:927794
17th International Conference Road Safety On Five Continents (RS5C 2016), Rio de Janeiro, Brazil, 17-19 May 2016
Available from: 2016-05-13 Created: 2016-05-13 Last updated: 2016-05-13Bibliographically approved

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Vehicle Engineering

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