Network Rail spends the other £6.6 billion on maintaining and upgrading track, stations, tunnels, signals and bridges.
[2] The train operating companies collect money from the passengers via fares (£9.4 billion in 2015/16) and other forms of income (e.g. parking and catering) and spend it on running trains.
[2] Passenger income is made up of fares as well as car parking charges and on-board catering.
[3] Currently price rises on regulated fares can increase by at most RPI inflation.
[2] Since becoming a public sector body in September 2014, Network Rail borrows directly from government.