Determining collision points from tire marks and falling objects in accidents involving pedestrians

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Other Title
  • 歩行者事故における路面痕跡や落下物からの衝突地点の推定

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Description

Determining collision points is quite important for the investigation of accidents between pedestrians and vehicles. Firstly, because the position of the pedestrians, for example if they are walking on a pedestrian crossing or not, has a great influence on determining if drivers are responsible for accidents. Secondly, because from collision points we can estimate the speed of the striking cars. One of the methods to determine collision points is to carefully observe the skid marks on the road. When vehicles hit pedestrians after applying the brakes, the skid marks sometimes bent slightly at the collision points. We verified with crash tests using dummies and the computer simulation PC-Crash that skid marks begin to bend at a point 0 to 2 meters past the collision points. Hats or caps of hit pedestrians are sometimes found on the crash site. We verified with crash tests using dummies that the hats or caps tend to fall near the collisionpoints. In the tests, caps come off from the dummies heads at the moment of the collision and fall vertically. However when caps come in to contact with the car body such as the roof edge while falling, the caps can fly a few meters away from the collision point. Crash tests also show that umbrellas held by pedestrians tend to fall near the collision points.

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Details 詳細情報について

  • CRID
    1390001205742633984
  • NII Article ID
    130006410101
  • DOI
    10.24597/jcts.11.2_18
  • ISSN
    24334545
    21883874
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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