We will be taking Z train to Xian from Zhangye West Railway Station.

Sorry to tell you that it is a little hard to find the floor plan of the station. But I can tell you that the station has two floors on the ground and a basement floor. The 1F has waiting hall, ticket windows, and enter and exit halls; the 2F is flatform floor. All signs are marked both in Chinese and English, so you can find your way. Don't worry!