基于阻塞角的行人仿真中避碰方法

Collision avoidance method in pedestrian simulation based on blockade-angle

以行人仿真中的避碰问题为研究对象,提出了阻塞角的概念。建立了障碍物对当前行人的阻塞角,进而确定了行人需要绕行的阻塞区域。根据路径最短原则,选择对同向行人和静态障碍物的绕行路径。结合我国行人右侧行走习惯,通过降低阻塞角的终边的优先级实现对向行人避碰。针对行人被阻塞角包围的特殊情况,提出了根据目标方向上距当前行人最近的行人的速度及行走方向,确定当前行人是否行走及行走速度。最后,对该避碰方法的实现过程进行仿真。结果表明,该方法不需要复杂的参数标定,大大简化了行人仿真过程中的建模工作。

Taking the collision avoidance in the pedestrian simulation as the research object,a concept of blockade-angle was introduced.The blockade area that needs to circumambulate by the pedestrian was defined by the introduced blockade-angle of the impediment to the on-going pedestrian.The circumambulation route of the pedestrian around the static impediment was chosen based on the shortest route principle.Considering the right-hand walking custom in China,the colliscon avoidance of the counter-directional pedestrians was realized by reducing the priority of the end-side of the blockdae-angle.It was suggested that for the special case of a pedestrian being limited by all sides of the blockade-angle,the question that whether the pedestrian should move continually and how much is his speed was depended on the speed and direction of the nearest pedestrian on the target direction.The realizing process of the proposed collision avoidance method was simulated,the results showed that this method does not require the complicated calibration process,the modeling process in the pedestrian simulation is also greatly simplified.