Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our Diversity statement.

Leave a public comment
Send a private comment to the author(s)
* All users must log in before leaving a comment
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.
We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.