There is no emergency stop
because stopping underground would cause a lot more problems than needed.
( SuperMatt, Tue 2 Jun 2009, 9:39, archived)

thought they had that red handle thing either behind glass or above the doors
do not use unless in a emergency or get fined 200 quid
( Tyronne Get To Falkirk, Tue 2 Jun 2009, 9:42, archived)