Standard metro stations are common, whereas invertedhall
metro stations are uncommon in China, particularly in a comprehensive
transportation hub with multiple lines. To overcome the difficulties in the
design of inverted-hall metro stations, a case study is
conducted on the design of an invertedhall metro
station of a comprehensive transportation hub for the interchange between Xi′an intercity railway airport line and metro line 4. The design
methods and concepts of the inverted-hall metro station
are thoroughly examined and summarized. It is suggested that the input
conditions and control factors should be carefully analyzed in the design of
similar invertedhall metro stations, with special
consideration to the fire compartment division and fire evacuation design.
Moreover, the unconventional evacuation mode should be optimized into the
conventional evacuation mode, resulting in a more rational metro station design
scheme.
