Network Rail owns and operates Britain's rail infrastructure, which covers a vast network of rail, signals, electrified lines and telecommunications. Taking over from the much-maligned Railtrack in 2002, it works to ensure 20,000 miles of track, 20,000 points, 30,000 signals and 10,000 miles of electrified lines are reliable and effective - the network on which 2.75 million people travel every day.