In message , at 16:10:03 on
Sun, 3 Aug 2008, Chris Tolley remarked:
The through platform at Cambridge needs extending by about half a
carriage (either end) to accommodate 12-car trains in the Thameslink
plan [maybe they were originally designed for a loco +10]. But if they
are thinking of running 12-car trains then presumably these will be made
of 4-cars from Kings Lynn joining the rear of a fresh 8-cars, and the
northern half of the platform will therefore be blocked by this
operation for five minutes. [And the converse in the evening].

How about building another platform, as at Wolverhampton and Rugby, or
is there something sacred about the Cambridge layout?

There are apparently plans for an island platform, but that may be more
because they want to shift the terminus a couple of miles north to
Chesterton Sidings.
--
Roland Perry