East Coast Main Line - Infrastructure

Infrastructure

The line is mainly four tracks from London to Stoke Tunnel, south of Grantham, except for two twin-track sections; the first of these is near Welwyn North Station as it crosses the Digswell Viaduct and passes through two tunnels, the second is between Huntingdon and Peterborough near 'Stilton Fen'. North of Grantham the route is twin track except for four-track sections at Retford around Doncaster, between Colton Junction (which is south of York), Thirsk and Northallerton, and another at Newcastle.

The main route is electrified along the full route and only the line between Leeds and York (Neville Hill Depot to Colton Junction) is non-electrified.

With most the of the line rated for 125 mph (200 km/h) operation, the ECML was the fastest main line in the UK until the opening of High Speed 1. These relatively high speeds are possible because much of the ECML travels on fairly straight track on the flatter, eastern regions of England, through Lincolnshire and Cambridgeshire, though there are significant speed restrictions (due to curvature) particularly North of Darlington and between Doncaster and Leeds. By contrast, the West Coast Main Line has to traverse the Trent Valley and the mountains of Cumbria, leading to many more curves and a lower general speed limit of 110 mph (180 km/h). Speeds on the WCML have been increased in recent years with the introduction of tilting Pendolino trains and now match the 125 mph speeds available on the ECML.