West Anglia Main Line

The West Anglia Main Line is one of the two main line railways that operate out of Liverpool Street; the other is the Great Eastern Main Line to Ipswich and Norwich. It runs generally north through Cheshunt, Broxbourne, Harlow, Bishop's Stortford and Audley End (near Saffron Walden) to Cambridge, with branches between serving Stratford, Hertford and Stansted Airport. The line runs along the boundary between Hertfordshire and Essex for much of its length.

For many years, the line was the main route from London to Cambridge, Ely and Kings Lynn. Following the 1988 electrification of the Cambridge Line, between Hitchin and Cambridge, the West Anglia Main Line is now primarily a commuter route for stations between Cambridge and London; it also took on a new role as the route for express trains to Stansted Airport.

It was an important goods route for many years as the southern end of a route from coalfields in Yorkshire, and there are still freight trains which run occasionally to Harlow and Rye House Power Station, along with a Network Rail base at Broxbourne.