Roland Perry wrote:

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?
--
http://gallery120232.fotopic.net/p9632982.html
(43 171 at Stockport, 1985)