Body profile of the train and the wording "little one" suggests Glasgow subway. But I can't remember which of the stations are of the central island layout there!
Partick?
Haworth?
It's a bit late to be stringing us out, don't you think? Knottingley?
Dorchester (either)?
Here's a graph. (once clagmonster has finished his last couple of hundred or so anyway)
Ivo is working on a different job. He can have a graph if he wants, but it would be just me and him. Until MattE2010 gets back to me.
There is no scale on that graph as I haven't been completing a step-by-step record (as perhaps others would have), but it is almost time to reconvene for a very brief set of checking... I'm not actually sure how many I checked.