Pedestrian Evacuation with Asymmetrical Exit Based on an Improved Cellular Automata

DOI

10.2991/ammsa-18.2018.52How to use a DOI?

Keywords

cellular automata; pedestrian evacuation; evacuation time; asymmetrical exit layout

Abstract

Simulation of pedestrian evacuation flow from a room with asymmetrical exit layout is presented based on cellular automata (CA) in this paper. Pedestrian moving rules were established, according to two-dimensional cellular automaton Moore neighborhood. The dynamic parameters: Direction-parameter, Empty-parameter and Cognition-parameter are formulated to simplify tactically the decision-making process of pedestrians, considering the effects of pedestrian jam around exits and the width of exits on evacuation path selection in order to reduce evacuation imbalance caused by the asymmetry of exits layout, which can reflect the pedestrian judgment on the surrounding conditions and decide the pedestrian’s choice of action. The simulation results of the improved and previous models are compared and analyzed. Simulation results show that evacuation time T increases nonlinearly (exponential distribution) when system size is increased, there is a linear relationship between evacuation time and pedestrian density, however, there is a negative exponential relationship between evacuation time and exit width. At last, the best exit layout is given in this paper. The simulation results correspond with the actual, it is instructional significant for pedestrian evacuation.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Nuo Zhu
PY  - 2018/05
DA  - 2018/05
TI  - Pedestrian Evacuation with Asymmetrical Exit Based on an Improved Cellular Automata
BT  - Proceedings of the 2018 2nd International Conference on Applied Mathematics, Modelling and Statistics Application (AMMSA 2018)
PB  - Atlantis Press
SP  - 254
EP  - 257
SN  - 1951-6851
UR  - https://doi.org/10.2991/ammsa-18.2018.52
DO  - 10.2991/ammsa-18.2018.52
ID  - Zhu2018/05
ER  -