tc wrote:With stations like Heathrow T4, and LUL provide a replacement bus service, for that station to count, you must DO that station VIA the bus.
Heathrow Terminal 4 is a bit unique because it is not possible to pass through the station whilst closed hence why you must use the bus.
tc wrote:As far as I am aware, it is fine to pass through a station such as Queensway, but it is not OK to pass through Wembley Park NB (Jubilee) as the station is OPEN, but the train doesnt stop there for the maintenance. Therefore, you'd double-back in the Wembley Park case.
I disagree - when a train passes through a platform that is closed for engineering reasons such as Wembley - the train is supposed to progress the length of the platform at 5mph - this is to ensure saftey for anyone working on the platform and also to keep to the standard timetable (No timetable advantage). So yes, a northbound Jubilee line pass through Wembley would be fine. However, Metropolitain line services are different because some do call at Wembley - therefore if you are travelling through Wembley northbound on the Met then it must stop.