On No, It Isn't!!
Posted: Tue 17 Dec 2013, 19:56
Wandering around St Katherine's Dock earlier today, I came across this bridge with a sign alongside which seemed to be saying the opposite of what was happening. 
Croydon Camera Club online discussion forum
https://www.forum.croydoncameraclub.org.uk/
https://www.forum.croydoncameraclub.org.uk/viewtopic.php?f=2&t=842