First, this paper focuses on classification of near-miss incidents with pedestrian into typical scenarios, and then incident data are analyzed under the assumption that pedestrian detection system has a pre-determinant sensing performance.The data of 220 near-miss incidents with pedestrian when own vehicle goes straight are employed. We proposed a set of eight scenarios which structure is not necessarily hierarchical. The eight scenarios cover about 75% of the incidents.To highlight the characteristics of the eight scenarios, two kinds of vector-diagrams are introduced which illustrate the transition of relative position between pedestrian and own-vehicle, and TTC-TTV (Time To Collision - Time To Vehicle) relation respectively. For example, in a relative position diagram, we can grasp the pedestrian's relative position which the detection system finds the pedestrian first when he/she appeared with pre-determinant wide detection angle. In TTC-TTV diagram, we can observe that the own-vehicle and the pedestrian approach each other maintaining a safe collision gap (difference between TTC and TTV) or not. After the analysis of the scenarios using vector diagram, we also discuss the effectiveness of these scenarios from the aspects of speed profile of own-vehicle, because the car speed is one of the most important factors which characterize near-miss incidents.From these analyses and discussions using the vector diagrams, the characters of each scenario become apparent. Scenario analysis shown in this paper must contribute to development of pedestrian collision warning system which aims to reduce pedestrian accidents.


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    Title :

    Scenario Analysis of Near-miss Incidents to Enhance Pedestrian Collision Warning System


    Additional title:

    Sae Technical Papers



    Conference:

    18th Asia Pacific Automotive Engineering Conference ; 2015



    Publication date :

    2015-03-10




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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