"Welwyn North station, with Up train, ECML 1992." View northward from footbridge, towards Hitchin and the North: ex-GNR London - Doncaster section of the East Coast Main Line. This is a very busy section needing widening, but which has to remain two-track only because of the expense of the widening over the Welwyn Viaduct and two Tunnels. Electrification King's Cross - Hitchin dates from 1976 and the local train approaching is a Class 317 EMU.