In message , Brimstone
writes
So the other way to do the sums is to guess the platforms are 170m
long (room for 10 cars), which makes the middles 429m apart (and the
ends 599m apart, which is exactly where the roads are).

480m doesn't fit that quite so well, unless the platforms are actually
even longer than that. Maybe someone can let us know if the platforms
extend under the roads at all.

Here's the diagram.

http://www.piccadillypilot.co.uk/bit...ing%201974.gif

Northfields 425ft = 129m
South Ealing 427ft = 130m
Gap 878ft = 268m
C2C 1255ft = 383m

Total length including both platforms = 527m
Gap + half of each platform = 398m

C2C = from most central point marked on each platform
--
Roland Perry