As the government prepares a major reorganisation of Britain's railways, Daniel Brittain asks what are they for. It's a question which has been ignored in previous reorganisations - which typically take place after a crisis or a disaster. So Daniel travels to Greater Manchester, meeting people on trains, people who want to be on trains, and those who run the railways, to understand how the rail industry has changed, and what its place in Britain's society, economy and culture might be in the future.

Producer: Giles Edwards.