_{[| Aperture: ƒ/1.4 | Camera: ILCE-7RM2 | Taken: 8 12月, 2015 | Focal length: 50mm | ISO: 800 | Shutter speed: 1/100s |]}

Because of the heavy traffic of people through the transfer channels, and it’s potentially danger, some metro stations in Shanghai have tried to limit the duration of the channels. Firstly they used the notices and marks on walls and floors, but got few effect. Now they tried to combine those marks with human guides and automatic doors.