I’m not sure why, but I found this grouping of dots quite appealing. It was probably the damp which created the contrast with the unblemished buttons on the station which made them stand out on a gloomy day.
Perhaps it was the irony. For years our train stations had a solitary yellow painted stripe running the length of each platform, but it appears we needed a less subtle reminder of what a yellow line is.
Personally I find it interesting that in an effort to warn customers of the dangers of being close to trains, you should put a raised trip-hazard.
Any reference to the Chinese film of the same name is purely coincidental, though I have a sneaking suspicion they share something in common.