Is it something like Swindon - Sailsbury - Swindon?
Showing how you were able to get a direct train between them today.
Yes ...it is indeed "something like" that ... but not quite.
It's the bay platform at Swindon, and the bay platform at Salisbury ... and in between them a depot where there were a whole lot of 158 / 159s sitting. So the caption / story board reads "
Wouldn't it be nice to get from here, carried by these, to there".
The Salisbury pictures were taken yesterday, and the whole time that we were there looking around (about for about 25 minutes before our return service was due out, an
SWT▸ 158 was sitting in one of the platforms too. Could have made it halfway to Warminster and back, and if it had crossed another train coming south then you have the basis of a two hourly Salisbury - Swindon, run from a depot on the line, with just a single extra train needed. And there were plenty yesterday.
Now - to complete the picture - I am aware that it was Good Friday, so some trains could have been running short to cope with a smaller passenger flow, and that there are major engineering works in the Wimbledon area which have probably served to cut services / supress demand too.