This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Traffic Accidents Involving Cyclists Identifying Causal Factors Using Questionnaire Survey, Traffic Accident Data, and Real-World Observation
Technical Paper
2016-22-0008
Annotation ability available
Sector:
Language:
English
Abstract
The purpose of this study is to clarify the mechanism of traffic accidents involving cyclists. The focus is on the characteristics of cyclist accidents and scenarios, because the number of traffic accidents involving cyclists in Tokyo is the highest in Japan. First, dangerous situations in traffic incidents were investigated by collecting data from 304 cyclists in one city in Tokyo using a questionnaire survey. The survey indicated that cyclists used their bicycles generally while commuting to work or school in the morning. Second, the study investigated the characteristics of 250 accident situations involving cyclists that happened in the city using real-world bicycle accident data. The results revealed that the traffic accidents occurred at intersections of local streets, where cyclists collided most often with vehicles during commute time in the morning. Third, cyclists’ behavior was observed at a local street intersection in the morning in the city using video pictures. In one hour during the morning commute period, 250 bicycles passed through the intersection. The results indicated that one of the reasons for traffic accidents involving cyclists might be the combined effect of low visibility, caused by the presence of box-like building structures close to the intersections, and the cyclists’ behavior in terms of their velocity and no confirming safety. It was observed that, on average, bicycle velocity was 3.1 m/s at the initial line of an intersection. The findings from this study could be useful in developing new technologies to improve cyclist safety, such as alert devices for cyclists and vehicle drivers, wireless communication systems between cyclists and vehicle drivers, or advanced vehicles with bicycle detection and collision mitigation systems.
Recommended Content
Technical Paper | Anti-Lock Braking System for Commercial Vehicles |
Technical Paper | Wireless Vehicle to Vehicle Warning System |
Technical Paper | Simplifying the Possibilities: Properties and Prioritization of Driver Interface Design |
Authors
Citation
Oikawa, S., Hirose, T., Aomura, S., and Matsui, Y., "Traffic Accidents Involving Cyclists Identifying Causal Factors Using Questionnaire Survey, Traffic Accident Data, and Real-World Observation," SAE Technical Paper 2016-22-0008, 2016, https://doi.org/10.4271/2016-22-0008.Also In
References
- Aoyama , Y. , Minamida , N. , Tsuboya , H. , and Hirabayashi , T. 2015 Development of vehicle-to-pedestrian communication technology Journal of the ITU Association of Japan 45 7 17 19
- Behera , R. , Gangadharan , J. , Kutty , K. , Nair , S. , and Vaidya , V. 2015 A novel method for day time pedestrian detection SAE Int. J. Passenger Cars - Electron. Electric System 8 2
- DITECT Digital image technology 2014 http://www.ditect.co.jp/products/software_000014.php
- Handa , S. , Omar , B. , Matsui , Y. , Oikawa , S. , and Mitobe , K. 2015 Development of bicycle simulator and study of the factors which cause traffic accident of elderly people Journal of the Japanese Council of Traffic Science 15 3 44 51
- Institute for Traffic Accident Research and Data Analysis of Japan (ITARDA) 2014 Annual traffic accident report in 2013 Tokyo
- Institute for Traffic Accident Research and Data Analysis of Japan (ITARDA) 2016 Annual traffic accident report in 2015 Tokyo
- Japan Bicycle Promotion Institute (JBPI) 2015 Domestic sales trend survey: Electric bicycle sales report Tokyo http://www.jbpi.or.jp/statistics/internal-motor-assisted/
- Ljung , M. , Jakobsson , L. , Lindman , M. , and Coelingth , E. 2015 Collision avoidance systems -Advancements and efficiency Paper presented at SAE 2015 World Congress & Exposition SAE Technical paper no. 2015-01-1406 Detroit, USA
- Makabe , S. 2012 Active safety system new eyesight version 2 Journal of the Society of Automotive Engineers of Japan 66 3 88 93
- Matsui , Y. , and Tanahashi , M. 2004 Development of JAMA-JARI pedestrian headform impactor in compliance with ISO and IHRA standards International Journal of Crashworthiness 9 2 129 139
- Matsui , Y. 2011 Improvement of accelerometers for pedestrian headform impactors in testing following Japanese vehicle safety regulations International Journal of Vehicle Safety 5 4 307 318
- Matsui , Y. , Oikawa , S. , Aoki , Y. , Sekine , M. , and Mitobe , K. 2014 Safety assessment characteristics of pedestrian legform impactors in vehicle-front impact tests Stapp Car Crash Journal 58 233 250
- Matsui , Y. , and Oikawa , S. 2015a Features of fatal cyclist injuries in vehicle-versus-cyclist accidents in Japan SAE Paper 2015-01-1415 SAE International Congress & Exposition Society of Automobile Engineers Detroit, USA
- Matsui , Y. , and Oikawa , S. 2015b Risks of serious injuries and fatalities of cyclists associated with impact velocities of cars in car-cyclist accidents in Japan Stapp Car Crash Journal 59 385 400
- Matsui , Y. , Oikawa , S. , and Hitosugi , M. 2016 Analysis of car-to-bicycle approach patterns for developing active safety devices Traffic Injury Prevention 17 4 434 439
- Sony 2013 http://www.sony.jp/handycam/products/HDR-PJ790V/spec.html
- Tahmasbi-Sarvestani , A. , Kazemi , H. , Fallah , Y. , Naserian , M. , and Lewis , A. 2015 System architecture for cooperative vehicle-pedestrian safety applications using DSRC communication SAE Technical Paper 2015-01-0290 10.4271/2015-01-0290
- Tokyo Metropolitan Police Department (TMPD) 2014 Municipalities by bicycle accident situation in Tokyo http://www.keishicho.metro.tokyo.jp/about_mpd/jokyo_tokei/tokei_jokyo/bicycle.files/005_26.pdf
- Tokyo Metropolitan Area Transportation Planning Council (TMATPC) 2010 5th Tokyo metropolitan area person trip survey results: View of Tokyo metropolitan area from people commute means Special issue of News from the Tokyo Metropolitan Area Transportation 22