Evacuation safety risks in subway interval tunnelsInter-district tunnels are relatively closed spaces, connected to the station at both ends of the tunnel, with a general length of 1200m and various pipelines set up on both sides of the tunnel side walls. Due to the constraints of the tunnel section

Evacuation safety risks in subway interval tunnelsInter-district tunnels are relatively closed spaces, connected to the station at both ends of the tunnel, with a general length of 1200m and various pipelines set up on both sides of the tunnel side walls. Due to the constraints of the tunnel section

Safety signs are to warn staff of the dangerous condition of the workplace or the surrounding environment, to guide people to take reasonable behavior signs. Safety signs can remind staff to prevent danger, so as to avoid accidents; when the danger occurs, can instruct people to escape as soon as po