Several routes start at the station including the West Anglia Main Line to London Liverpool Street, the Fen Line to King's Lynn, the Breckland Line to Norwich, services to Ipswich on the Ipswich to Ely Line, and the Cambridge Line, heading southwards and following an alternate route, to London King's Cross, via Hitchin. These routes are electrified at 25 kV AC overhead, except for the Ipswich to Ely and Cambridge to Norwich lines, which are diesel-operated. The station has the third-longest platform in England. Ticket barriers are in operation.