ticket barrier 0:06 , 22:52 train 1:12 (doors only open at other platform) , 6:22 escalator 23:00 - recorded with Sony a6500 (firmware 1.04), Samyang 12mm, Zhiyun Crane v1.0 (firmware v1.60), Sony ECM-XYST1M March 2018
I think they do but poor security at the line 1 depot means they just get covered again. Not a problem on line 2/3 depots as they’re newer with very strong security, happens much less often and no trains go out with graffiti on those lines
