There are benefits of digital technology, but the right hon. Gentleman will be aware that this is a difficult week on the railways, as I have explained. It has happened because of the late delivery of the timetable. This is the second time that it has happened in six months. I have already had discussions with Network Rail about this. It must not happen again. What the digital railway will do is create a railway that can run more trains more reliably. It gets rid of the risk of traditional signal failures, which are a big part of the frustrations that many commuters face, and I want to see, over the next few years, our stopping replacing old-fashioned traffic-light signals and using digital technology instead.