Terminating at TCR

The train would not necessarily need to run to Holborn as the sidings are just west of the closed Museum Street station. So they could stop there (at a Limit of Shunt board), driver change ends then into sidings. I suspect there could be section switches to isolate traction current just outside Museum Street so Holborn and further east can be isolated for engineering works / other incidents.

FYI Piccadilly Line has something similar at Down St, which is in between Hyde Park Corner and Green Park.

To answer your question on Lancaster Gate, the sidings at Marble Arch are just outside the station and the orientation means that trains going east would have to stop at Marble Arch to reverse.

I got my info on the Central Line from carto.metro.free.fr/cartes/metro-tram-london/index.php?gpslat=51.532474&gpslon=-0.133734&zoom=4 which does show orientation and positions of sidings quite accurately in my opinion.

Before the Central Line was resignalled in the 1990s it was possible to put a train back into British Museum siding by reversing east to west in the vicinity of British Museum disused station. 1962 Stock had "Tottenham Court Rd" on their (last set of) destination blinds (and also "Queensway" and "Bethnal Green").

With the current signalling, trains have to proceed into the eastbound platform at Holborn and then shunt back using shunt signal HOL4354. There is no signalled move back into the siding from the eastbound line from the disused station.

Thanks!

Is it possible to get Grange Hill or Grange Hill via Hainault up as a destination? I'm just curious, because I know you can get Grange Hill via Woodford, but I believe you can also go into Hainault depot from the inner rail platform, judging by the shunt signal at the end of it.

Is this very rare then?

Unless, of course, this is part 2 of today's quiz?

Well that at least solves that mystery. Thanks for that, I enjoyed it

Hi there superteacher, thanks for the clarification As it turns out, the picture was taken at Northolt westbound platform 1. I can only assume the Tottenham Court Road train was to be reversed off platform 1 over the crossover at the 'east' (Greenford) end and tipped out and run up to Holborn and into the sidings as described. Obviously the West Ruislip would just carry on west as normal.

This was fahad's picture, I don't know if any such train arrived, but I hope it did. I'm with you on that, a definite rarity, I'd've loved to've been there to watch, although you probably can't see much at Northolt, I suppose. But you're quite right and even if it did arrive as a TCR and did depart as a TCR, there's still the chance that it was eventually sent somewhere else.