Abstract: Standard metro stations are common, whereas invertedhall 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 invertedhall 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 invertedhall 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.

Key words: invertedhall metro station, interchange station, integrated transportation hub, fire evacuation