PERFORMANCE EVALUATION OF PASSENGERS' EVACUATION FOR SMOKE-CONTROL MODES IN A SUBWAY STATION

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박 원 희,^*1 장 희 철,² 정 우 성,³ 이 한 수³

P ERFORMANCE E VALUATION OF P ASSENGERS' E VACUATION FOR S MOKE- C ONTROL M ODES IN A S UBWAY S TATION

Won-Hee Park,

^*1

Hee-Chul Chang,

²

Woo-Sung Jung

³

and Han-Su Lee

³

Heat/smoke detectors are installed in most subway platforms in Korea to detect fire. Subway platform is divided by smoke-control zones for efficient smoke-control. Once the detectors detect heat or smoke, the smoke-control ventilation system in the platform and concourse is activated according to the smoke-control ventilation mode. Smoke-control mode during fires in Korean subway platforms is that the smoke zones operate by exhausting smoke while other zones in the platform and in the concourse which is the upper floor of the platform operate by supplying air or stopping any ventilation. This study is conducted to evaluate performance of passengers' evacuation for various smoke control modes in the subway station. Distribution of smoke and heat due to fire on the platform is analyzed by using Fire Dynamics Simulator(FDS V 4.06) of NIST. Various smoke-control ventilation modes and locations of fire are considered. Evacuation and movement of passengers within the platform is simulated by building EXODUS V.4.0.

Key Words : (Subway Station), (Smoke-Control Mode), (Passenger Egress)

Corresponding author, E-mail: [email protected]

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Fig. 1 Skeleton Drawing of the Suyou Station of Seoul Subway Line 4

Time (min.)

Smoke Zone (Platform)

No-Smoke Zone (Platform)

Tunnel The origin of a fire

Case 1 No fire occurred

Case 2 contin

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0 ~ 2 exhaust stop stop

2 ~ 4 exhaust exhaust stop

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2 ~ 4 exhaust exhaust stop

4 ~ stop stop exhaust

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Case 2

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Fig. 2 Visibility contours at 1.7m above the platform floor(t=600sec)[9]

Fig. 3 Visibility distributions along platform center line at 1.7m high above the platform floor(t=600sec)

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Fig. 4 Zone for considering fire hazard in EXODUS

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[10] 2007, , “

(CPaPa ver1.0),” ,

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