Some the floor and the whole environment color toning is really important. I may be wrong here, since the video seems to be taken from a PC screen, but in a glance the rail trail and the next train and the platform that he was walking from, seem to be once piece, especially with the reflection floor.

When people are new to the place/environment, chances of missing the hollow rail in step is high. I remember a trip to Prague, where a friend of almost mis-step onto the rail, we manage to pull him in.