Mr Thant wrote on 28 October
2009 13:24:18 ...
On 28 Oct, 11:42, "Richard J." wrote:
On the current track alignment, an extension to 8 cars would have a very
narrow platform at the eastern end. You'd have to move the tracks
further apart

I'm not sure I follow. The tracks don't converge until a considerable
distance east, and in fact they go under Harrow Road bridge through
completely separate spans.

You're right. Sorry, I withdraw my earlier comment. I made it after a
quick look at the satellite image, but having got my ruler out I realise
that there is in fact plenty of room for an 8-car island platform, both
lengthwise and widthwise. So I don't know why Nick/D7666 thought that
an 8-car platform would have to be on a bridge over the WCML.

I'm assuming that, as an extension of an existing curved platform, it
would be allowed to continue the curve.
--
Richard J.
(to email me, swap 'uk' and 'yon' in address)