"Transfer" refers to the behavior of passengers crossing subway lines between different lines through the communication channel set in the payment area, and the stations that support this behavior are called transfer stations. For example, there are 9 stations on Line 3 and Line 4, Line 1 and Line 2 People's Square Station. At the transfer station, passengers don't have to go out to buy tickets, and the mileage is calculated continuously.

"Transfer" refers to the situation that the nearby station does not have the conditions to become a transfer station for various reasons, and passengers need to transfer to other lines of rail transit through communication channels or ground roads in the free zone when crossing the subway. The corresponding station is called "transfer". For example, Yishan Road Station on Lines 3 and 4, Shanghai Station on Lines 3 and 4, and Shanghai Station on Line 1 etc. ?

Transfer at different stations refers to transfer from one station to another. According to the station layout, there are four types of transfer stations: cross transfer station, T transfer station, L transfer station and parallel transfer station. T-shaped, cross-shaped and L-shaped refer to the shape composed of two platforms, among which parallel transfer stations are also called transfer stations in the same direction on the same platform, and transfer at the same platform will transfer to different cars. ? Lujiabang Road Station? Cross-transfer between Line 8 and Line 9 (photos)