We study the pedestrian dynamics with the consideration of two heuristic mechanisms of anticipation and attraction. The former enables the individuals to anticipate potential collisions in terms of the state of surrounding environment and slow down their moving speed accordingly, while the latter reflects the tendency of the individuals following (or being attracted by) those peer partners with high moving speeds, trying to reach their destinations as quickly as possible. By tuning the interaction ranges of anticipation and attraction, we explore the collection motion behavior of the pedestrians in three common movement scenarios, i.e., the bidirectional pedestrian flows in a straight corridor, the crossing pedestrian flows in a square and the crowd evacuation in a room. Interestingly, with appropriate combinations of the anticipation distance and attraction distance, we reproduce the typical collective motion patterns of the pedestrians observed in the empirical studies, such as the formation and separation of global pedestrian flow lanes, the stop-and-go waves, and the vortexlike patterns as well. Particularly, we find that a strong attraction effect by the fast-moving pedestrian flows benefits the efficient passing only in the corridor case, whereas in the case of crossing pedestrians the avoidance behavior due to anticipation will play a dominating role in guaranteeing an ordered collective motion.

中文翻译：

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具有预期和吸引力机制的行人动力学

我们考虑了预期和吸引力的两种启发式机制来研究行人动力学。前者使人们能够根据周围环境的状态来预测潜在的碰撞并相应地减慢其移动速度，而后者则反映了人们跟随那些以高移动速度与之同行伙伴（或被其吸引）的趋势，尽快到达目的地。通过调整预期和吸引力的交互作用范围，我们研究了行人在三种常见运动场景下的集合运动行为，即双向行人在笔直的走廊中流动，交叉的行人在广场中流动以及人群在房间中疏散。有趣的是 通过适当地结合预期距离和吸引距离，我们再现了在经验研究中观察到的典型行人集体运动模式，例如全球行人流动车道的形成和分离，走走停停的波浪以及类似漩涡的运动模式。特别是，我们发现，快速移动的人流产生的强大吸引力仅在走廊情况下才有效通过，而在横穿行人的情况下，由于预期而产生的回避行为将在保证有序集体运动中起主导作用。以及漩涡状图案。特别是，我们发现，快速移动的人流产生的强大吸引力仅在走廊情况下才有效通过，而在横穿行人的情况下，由于预期而产生的回避行为将在保证有序集体运动中起主导作用。以及漩涡状图案。特别是，我们发现，快速移动的人流产生的强大吸引力仅在走廊情况下才有效通过，而在横穿行人的情况下，由于预期而产生的回避行为将在保证有序集体运动中起主导作用。