A cellular automata model for high-density crowd evacuation using triangle grids

• Published in: Physica A Vol. 509; pp. 1034 - 1045
• Main Authors: Ji, Jingwei, Lu, Ligang, Jin, Zihao, Wei, Shoupeng, Ni, Lu
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.11.2018
• Subjects: Cellular automata; Evacuation; High density crowd; Triangle grid; High density crowd; Cellular automata; Evacuation; Triangle grid
• ISSN: 0378-4371; 1873-2119
• DOI: 10.1016/j.physa.2018.06.055

In this paper, according to the characteristics of evacuation in high-density crowd, a new triangular grid cellular automata model is proposed. In this model, the maximum density of crowd can reach to 8 person/m2 which is measured by the experiment. And pedestrians can move to 14 directions if there are no obstructions around them. Meanwhile, this paper proposes the concept and calculation rules of moving potential in the moving field. The moving potential provides reference for the movement of a pedestrian. Through the comparison of the measured values and the simulated values of an evacuation process in a building, it is proved that the model can accurately simulate the evacuation process of high density crowd. •Maximum crowd density of 8 people/m2 can be simulated.•The triangular mesh makes the model have better spatial adaptability.•Pedestrians have more movement directions in the model.•Experiments proved that the simulation results have high reliability.