Article
Version 1
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Data-driven Time Model for Subway Emergency Evacuation: A Case Study and Simulation
Version 1
: Received: 28 April 2023 / Approved: 28 April 2023 / Online: 28 April 2023 (08:46:09 CEST)
How to cite: Hui, Y.; Yu, Q.; Peng, H. Data-driven Time Model for Subway Emergency Evacuation: A Case Study and Simulation. Preprints 2023, 2023041151. https://doi.org/10.20944/preprints202304.1151.v1 Hui, Y.; Yu, Q.; Peng, H. Data-driven Time Model for Subway Emergency Evacuation: A Case Study and Simulation. Preprints 2023, 2023041151. https://doi.org/10.20944/preprints202304.1151.v1
Abstract
High density of buildings and the large traffic volume of cities give rise to narrow spaces and high passenger flows in most subway stations. When evacuation is required during an emergency, these problems may trigger issues in operational safety. Therefore, it is imperative to comprehensively assess subway station emergency evacuation times and capacities during the operating process to ensure the design is safe, science-based, and rational. To further enhance safe evacuation capacity, this paper proposes an overall evacuation time model that considers the multielement charac-teristics of subway stations in multiple segments. The evacuation route is decomposed into five stages according to the critical nodes in the evacuation process. An overall emergency evacuation time model is established based on the diversity of bottlenecks in the five stages, integrating elements such as the horizontal movement velocity of passengers, subway equipment parameters, and human density. Taking Xi’an Wulukou Subway Station as an example, this paper verifies the outcomes of the theoretical model against the Pathfinder software and conducts additional anal-yses of the evacuation conditions of stairs and exits. The results show that the error between the theoretical emergency evacuation time and simulation evacuation time was 5.4%, The emergency evacuation model established in this study boasts strong robustness and stability.
Keywords
emergency evacuation; complex building; theoretical model; numerical simulation
Subject
Physical Sciences, Applied Physics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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