Not a public right-of-way, but perhaps used by people not catching a train: yesterday evening I had to get from Bath Road in Reading to Oxford Road and "followed my nose". When I reached Tilehurst Road and the railway bridge, I noticed a path signposted "Reading West Station" and went down it. It led me on to the south end of the station platform, along which I walked the entire length, to exit at the north end onto Oxford Road, conveniently close to a bus stop.
It's used by people to do all sorts that path