Ya know, I was gonna say (the dots were) for blind people, but had nothing to back it up, so I left it out of my post. But nothing pisses me off more than some shithead standing at the outer edge of the dots (or worse yet, walking along them) when a train is arriving... Partly because the conductor usually rants about it when they open the doors, but mostly because I don't want my trip delayed due to track pizza.