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A modified universal pedestrian motion model: Revisiting pedestrian simulation with bottlenecks

Building simulation 2022年第4期15卷 631-644页

作者： Jianyu Wang Majid Sarvi Jian Ma Milad Haghani Abdullah Alhawsawi Juan Chen Peng Lin School of Transportation and Logistics Notional Engineering Laboratory of Integrated Transportation Big Data Application TechnologySouthwest Jiaotong UniversityChengdu 610031China Transport Engineering Group Melbourne School of Engineering&ITThe University of MelbourneVictoria 3070Australia Institute of Transport and Logistics Studies Business SchoolThe University of SydneyNSWAustralia Faculty of Geosciences and Environmental Engineering Southwest Jiaotong UniversityChengdu 610031China

pedestrian flow through narrow exits is one the most important features of crowd dynamics and *** is a particularly important aspect of pedestrian simulation models in that the accuracy is highly dependent on their ability to produce realistic exit flow *** firstly identified the four parameters that are most critical for physical interactions of the social force model and then calibrated them against two well-controlled pedestrian *** these calibrated parameters,we discussed the reasonable settings of sensitive parameters for different levels of pedestrian ***,we revisited the basic questions about the effect of the exit location,the bottleneck length,and the effect of obstacles on pedestrian *** simulation results indicated that:(1)The effect of the exit location on the pedestrian egress efficiency is uncertain,and the evacuation efficiency is also related to the exit width and the level of urgency.(2)The"pass-way"after the exit also named as the bottleneck length has a negative impact on the evacuation performance only in the scenarios that the bottleneck length is not more than 2.0 *** the bottleneck length exceeds 2.0 meters,pedestrian outflow efficiency reaches an asymptotic.(3)Setting an obstacle near an exit is not leading to a longer pedestrian evacuation time,instead,it is effectively improving pedestrian evacuation.

关键词： bottleneck pedestrian crowd simulation exit location bottleneck length obstacles location

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