The first is the iron horse. When the passenger flow is large, the station staff will place the iron horse at the security inspection machine at the station entrance to delay and control the speed of passenger flow into the station;
The second is the security inspection machine, the security inspection machine is generally located at the entrance of the gate, because the passing speed of the security inspection machine directly affects the inbound speed of passenger flow;
The third is the number of gates. If the number of gates is large, the passenger flow residence time is short, the passing rate is high, and the reverse is slow;
The fourth is the ticket buying machine (including network ticket buying machine, scanning gate machine, etc.), which indirectly affects the speed of passenger flow;
Fifth, the number of escalators, ladders and stairs.