Quote Originally Posted by Steve Smith View Post
There are some stations on the London Underground now which are totally sealed off between the platform and the track with sliding doors which only open when a train is present. I expect to see a lot more of these in the future.

http://www.flickriver.com/photos/news46/3404145349/

Obviously the train driver now has to stop in exactly the right place!


Steve.
As it is for trams in all the airports I've been to.