Analysis of Potential Co-Benefits for Bicyclist Crash Imminent Braking Systems

dc.contributor.authorGood, David H.
dc.contributor.authorKrutilla, Kerry
dc.contributor.authorChien, Stanley
dc.contributor.authorLi, Lingxi
dc.contributor.authorChen, Yaobin
dc.contributor.departmentElectrical and Computer Engineering, School of Engineering and Technologyen_US
dc.description.abstractIn the US, the number of traffic fatalities has had a long term downward trend as a result of advances in the crash worthiness of vehicles. However, these improvements in crash worthiness do little to protect other vulnerable road users such as pedestrians or bicyclists. Several manufacturers have developed a new generation of crash avoidance systems that attempt to recognize and mitigate imminent crashes with non-motorists. While the focus of these systems has been on pedestrians where they can make meaningful contributions to improved safety [1], recent designs of these systems have recognized mitigating bicyclist crashes as a potential co-benefit. This paper evaluates the performance of one system that is currently available for consumer purchase. Because the vehicle manufacturer does not claim effectiveness for their system under all crash geometries, we focus our attention on the crash scenario that has the highest social cost in the US: the cyclist and vehicle on parallel paths being struck from behind. Our analysis of co benefits examines the ability to reduce three measures: number of crashes, fatalities, and a comprehensive measure for social cost that incorporates morbidity and mortality. Test track simulations under realistic circumstances with a realistic surrogate bicyclist target are conducted. Empirical models are developed for system performance and potential benefits for injury and fatality reduction. These models identify three key variables in the analysis: vehicle speed, cyclist speed and cyclist age as key determinants of potential co-benefits. We find that the evaluated system offers only limited benefits for any but the oldest bicycle riders for our tested scenario.en_US
dc.eprint.versionAuthor's manuscripten_US
dc.identifier.citationGood, D. H., Krutilla, K., Chien, S., Li, L., & Chen, Y. (2017). Analysis of potential co-benefits for bicyclist crash imminent braking systems. In 2017 IEEE 20th International Conference on Intelligent Transportation Systems (ITSC) (pp. 1–6).
dc.relation.journal2017 IEEE 20th International Conference on Intelligent Transportation Systemsen_US
dc.rightsPublisher Policyen_US
dc.subjectvehicle crash testingen_US
dc.subjectcomputer crashesen_US
dc.titleAnalysis of Potential Co-Benefits for Bicyclist Crash Imminent Braking Systemsen_US
dc.typeConference proceedingsen_US
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