In message , Steve
Dulieu writes

Given that District and Picadilly trains share the same tracks between
Acton Town and Hangar Lane Junction, is there anything to stop
(physically) Picadilly trains going to Ealing Broadway? Has this ever
happened in public service (e.g. last minute diversion because of some
problem north of the junction)?

Last happened last Tuesday evening, off duty copper attempting to arrest 3
yobs for graffiting a train at North Ealing, caused a shut down when 2 of
them legged it down the WB towards Park Royal. T353 was run to Ealing
Broadway to save it being stuck in section.

And why does it never happen when I'm at work?
--
Steve Fitzgerald has now left the building.
You will find him in London's Docklands, E16, UK
(please use the reply to address for email)