MIG wrote:
On 23 Dec, 10:58, John B wrote:
On Dec 23, 12:24 am, (Neil Williams)
wrote:

And could selective door opening
be used to allow a decent train length to run on the Circle?

Yes, this is part of the S-stock upgrade plans: 7-car S-stock trains
the length of current District stock will run all District, H&C and
Circle services.

I didn't realise that, and it seems very odd. Doesn't the problem
apply to several stations in a row? Either there will be one coach
not used by anyone on that stretch, or it would have to be a different
end at different stations.

This sort of thing was tried on the Hampstead tube wasn't it, and I
didn't think it had been all that successful?

The Hampstead tube didn't have articulated carriages.

--
We are the Strasbourg. Referendum is futile.