Trajectory-based Study on the Conflict Characteristics of Pedestrians and Non-motor Vehicles at Bus Stops
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更新:2021-12-03 14:40:20 浏览:102次
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摘要
To analyze the conflict characteristics between pedestrians and non-motor vehicles in the bus station area, this paper uses traffic conflict technology and conflict indicators to explore non-motor vehicle-pedestrian conflict at bus stops. Most of the current researches are mainly aimed at the conflict between motor vehicles and non-motor vehicles while ignoring the impact of non-motor vehicles on pedestrian safety. In this paper, three bus stations, along with the motor vehicle and non-motor vehicle isolation strip in Xi'an, are taken as examples. Through field survey and video collection, Traffic Analyzer George 2.1 is used to extract relevant data such as velocity, acceleration, and trajectory of both parties in the traffic conflict. Non-motor vehicle-pedestrian conflicts are divided into three types according to the form of avoidance. This paper analyzes the trajectory characteristics of non-motor vehicle lateral offset under the influence of pedestrians, and the severity of conflict under different avoidance forms. The conflict distance and Time to Collision (TTC) are selected as evaluation indicators, and the k-means cluster analysis method and cumulative frequency analysis method are used to respectively determine appropriate thresholds for judging the severity of non-motor vehicle-pedestrian conflict at bus stops. The results show that: 0 < TTC≤1.0s means serious conflict, 1.0s < TTC≤1.9s means general conflict, and TTC≥1.9s is not considered to constitute a conflict.
稿件作者
Boyu Yang
Chang'an University
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