"asdf" wrote in message
...

Do Chiltern not also run services that run non-stop between Amersham
and Marylebone?

They do - in addition to some that run non-stop between Great Missenden and
Marylebone - but only up in the morning peak and down in the evening peak.

But wouldn't Chiltern then run into capacity problems south of
Neasden?

Track capacity is not a problem but the signalling of the existing
infrastructure is the constraint at present. However, Evergreen 2 will
address many of the problems, installing additional sections and upgrading
two-aspect to three-aspect and some three-aspect to four-aspect throughout
the Chiltern system.

It's not cross-platform, unless some major remodelling goes on at
Harrow...

True - in the pure sense. I wasn't actually using the term to mean
cross-platform-face but to mean crossing from one platform to another at the
same station.

In any case, the through-running-to-City problems would be largely
solved by Chiltern's proposal for an enhanced West Hampstead
interchange.

Agreed. The sooner that this comes about, the better.