"Peter Masson" wrote in message
...

Between Harrow and Moor Park the lines are paired by use, southern pair
are
the fast lines, used by Amersham/ Chesham fasts, and by Chiltern Railways
Aylesbury trains, and the northern pair are used by stopping trains to
Watford (and occasionally Amersham). At least at Northwood, the slow lines
were new with new platforms, while the original tracks became the fast
lines, and the original down platform was abandoned. The original up
platform had a wall built along its original platform face, and a new face
built the other side as the new down (slow) platform - Photo in 'London
and
its Railways' by r Davies and M D Grant.

Thanks. That was the bit I wasn't sure about. How does the up (Met) fast
coming from North Harrow cross over the slows to get to the north side of
the formation in Harrow-on-the-Hill station? Is this done as part of the
flying junction arrangement for the Uxbridge line?

Regards

Jonathan