Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/10922
Title: Fire hazard assessment for a green railway station
Authors: Chow, WK 
Qu, L
Keywords: Available safe egress time (ASET)
Computational fluid dynamics
Green railway station
Required safe egress time (RSET)
Timeline analysis
Issue Date: 2014
Publisher: John Wiley & Sons
Source: Fire and materials, 2014, v. 38, no. 4, p. 451-461 How to cite?
Journal: Fire and materials 
Abstract: A green railway station adopting natural ventilation was built in Hong Kong to promote sustainable architectural design. Similar to many other green or sustainable projects, such design failed to comply with the local fire safety codes. There are potential fire hazards due to the adopted green features. Better ventilation provision would supply more air to burn the combustibles in case of fire. Performance-based design was applied using the timeline analysis to determine the fire safety provisions. In this paper, fire simulations were carried out to predict the available safe egress time (ASET) under low design fires with smoke toxicity including only the carbon monoxide concentration. Evacuation simulations were conducted to predict the required safe egress time (RSET) under low passenger loadings. Studies on human behaviour under big fires and heavy passenger loadings were not included. Problems to be encountered in this green railway station using the timeline analysis will be pointed out in this paper. ASET was estimated by computational fluid dynamics with bigger fires resulted from the green features. RSET was estimated by evacuation software under local passenger loadings. The results indicated that ASET are less than RSET under big fires with heavy passenger loadings.
URI: http://hdl.handle.net/10397/10922
ISSN: 0308-0501
EISSN: 1099-1018
DOI: 10.1002/fam.2189
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