None of the above are correct.
Time for a clue I think.
I'm tempted to say it's a station in the SWT area with at least two platforms, but I think you have all worked that out already...
So...
A more suitable clue... not far from this station, the numbers between two consecutive mileposts "jump" a noticable distance.
As stated earlier, I will be back online at or shortly after 22.00. If there is a consensus on the answer between now and then, please do feel free to have one of your interim entries until I can confirm the answer.
