| Title |
Simulation-based Evacuation Risk Assessment Framework of Deep Subway Station ? Case Study of Guryong Station |
| Authors |
Ji-Won Jeong ; Fansheng Kong ; Seung-Jun Ahn |
| DOI |
https://dx.doi.org/10.6106/KJCEM.2026.27.2.051 |
| Keywords |
Simulation; Vulnerability Assessment; Risk Assessment; Deep Subway Station; IMO |
| Abstract |
This study proposes a generalized analysis framework to quantitatively evaluate latent evacuation vulnerabilities within the complex vertical egress system of deep-depth subway stations by adapting the International Maritime Organization (IMO) passenger ship evacuation analysis guidelines (IMO MSC/Circ.1238). Departing from conventional evaluations centered on single macroscopic indicators, this research establishes a probabilistic scenario-setting procedure and introduces the Bottleneck Sensitivity Index (BSI) as a key metric to quantify the bottleneck levels experienced by users based on their initial departure locations. A case study conducted on Guryong Station (Suin-Bundang Line) demonstrated that the proposed framework can specifically identify localized vulnerability points for users on lower floors when vertical path availability changes due to obstructions on upper levels. By successfully adapting recognized maritime guidelines for land transportation facilities, this study lays the foundation for objective and consistent safety diagnostic standards. Furthermore, the standardized procedures and intuitive analysis methods ensure high practical utility for designers and regulators, making the framework a vital decision-support tool for future safety design and the development of efficient evacuation guidance strategies in deep-depth subway stations. |