More people are using trains than at any time since the second world war, when the network was twice the size, according to the Association of Train Operating Companies. Last year there were an estimated 1.14bn journeys, an increase of 6.7% over 2005. Growth in the last six months has been 10%. In the past 10 years the number of rail journeys has doubled and around 3.2m are made every day. George Muir, director general of the association, said: "For the first time we are seeing the environmental benefits of rail becoming a significant factor in how people choose to travel around the UK."