2023 Fiscal Year Final Research Report
Study on traffic accidents involving bicycles carrying children or three-wheeled bicycles
| Project/Area Number |
19K14932
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 20010:Mechanics and mechatronics-related
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| Research Institution | National Research Institute of Police Science |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2024-03-31
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| Keywords | 交通事故 / 幼児同乗自転車 / 三輪自転車 / 衝突 / 頭部傷害 |
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| Outline of Final Research Achievements |
The purpose of this study is to understand the kinematic behavior of bicyclists and bicycles and the risk of injury in accidents between cars and bicycles carrying children, and between cars and three-wheeled bicycles.
The collision tests of bicycles carrying children showed that the risk of head injury to the child passenger tended to be higher in contact with the road surface. In addition, it was found that using the seat belt and the head restraint reduced the risk of the head injury to the child dummy in the contact with the road surface, because the head restraint prevented a direct contact between the head and the road surface. The collision tests of three-wheeled bicycles showed that the interference between the bicyclists and the bicycles may increase the throw distance of the bicyclists.
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| Free Research Field |
交通事故解析、自動車工学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究では，自動車と幼児同乗自転車の事故，自動車と三輪自転車の事故を模擬した実車衝突実験を行い，事故時の乗員および自転車の挙動，傷害リスクを明確にした．研究成果は，これまでの一般的な一人乗りの二輪自転車の交通事故対策では検討されていなかった，幼児同乗自転車，三輪自転車に適した安全教育や今後の自転車乗員の保護技術・保護試験法の研究，開発における土台になると考えられ，子供や高齢者の更なる交通安全対策につながると考えられる．
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