Basil Jet wrote on 13 November
2009 03:21:14 ...
Richard J. wrote:
David of Broadway wrote on 13 November
2009 00:38:44 ...

I wonder why a different service pattern wasn't used, specifically to
avoid this problem. For instance: H&C operates from Hammersmith to
Edgware Rd (with one lap around the circle) and Wimbleware
(Wimbleking?) is extended to Whitechapel/Barking; the Circle is
eliminated entirely. That maintains most existing one-seat rides
that make sense, and the new two-seat rides (Gloucester Road and
vicinity to Baker Street and vicinity, Royal Oak and beyond to
Aldgate East and beyond) all have easy transfers. Edgware Road also
doesn't end up with two terminating services. Only the west end of
the H&C loses out, but I don't know if the planned doubling of
frequencies was a deliberate design goal or a side effect of the
service plan chosen. So - am I missing something?

Yes, you've lost the increased frequency between Hammersmith and
Paddington, which I believe was one of the requirements of the new
timetable in order to meet increased demand on that section.

But if you take David's plan and extend the Edgware Road terminators back to
Hammersmith (i.e. Hamm - KX - Vic - Edg Road - Hammersmith, running in both
directions) then you have ...

.... confusion! Since your "extension" is actually a reversal, you
effectively have (a) a Hammersmith - Edgware Road shuttle, (b)
Hammersmith - KX - Vic - Edgware Road in both directions. You now have
two services terminating at Edgware Road, which is what David's plan was
trying to avoid. In addition, both David's plan and yours pollute the
reliability of the Wimbleware service by extending it over another three
flat junctions. Back to the drawing board!

--
Richard J.
(to email me, swap 'uk' and 'yon' in address)