I started an accessible site on the Railway and Tube stations in London before the 2012 Olympics. It was never great or updated because no one showed an interest in it.
I was able to walk around the stations, ofetn doing a number of stations in one day. I could walk quite well in those days. Not so much at present, and I rely on a carer to push me around if I need to travel any distance. I have just recently had a lung reduction operation, and further stays in hospital for coplications.
Anyway, I am now busy updating the site, and adding the rest of the country, starting in the South and lines from London. I am promoting step free rather than accessible keywords, and I am adding a picture of the Station where I can, this is usually in a map format which you can visiyt the area in thee dimensions.
The header will change over time but here is https://stepfreerail.com/index.shtml ; please enjoy and also any updates are very welcome.
Kevan