Earticle

초록

영어

This study evaluates the evacuation efficiency of conventional static emergency exit signs compared with dynamic exit signage incorporating congestion monitoring in order to enhance public safety measures. To support the analysis, both fire and evacuation simulations were conducted based on a reconstructed model of a Daegu subway station in South Korea as a case study. Fire scenarios were simulated using PyroSim and Fire Dynamics Simulator (FDS), while evacuation behavior was analyzed using Pathfinder. The station geometry was reconstructed as a three-level underground structure with corrected parameters, including floor heights and slab thickness, to improve realism. Conventional emergency exit signs are unable to respond to dynamic congestion conditions, often resulting in bottlenecks that hinder evacuation flow. In contrast, the proposed dynamic exit signage detects congestion and dynamically redirects occupants toward safer and less crowded routes, thereby enhancing evacuation performance. Three simulation scenarios were considered: (1) conventional static emergency exit signs, (2) dynamic exit signage, and (3) optimized dynamic exit signage applied assuming that the doors of both trains are open. Performance was evaluated using total evacuation time and maximum evacuee throughput. The results indicate that dynamic exit signage significantly reduces evacuation time and increases evacuation capacity compared to conventional systems. Furthermore, the optimized system demonstrates additional improvements by adaptively responding to congestion patterns during evacuation. These findings suggest that dynamic exit signage can substantially improve life safety in underground transit facilities and provide valuable insights for future subway design and emergency planning.

저자

• Ahyoon Gong [ Korea University ]
• Donghyuk Jung [ Korea University ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국재난정보학회 학술발표대회

• 간기

  부정기

• 수록기간

  2005~2026

• 십진분류

  KDC 338 DDC 361