Category
page 1Rail transport in Hertfordshire
Metropolitan line
London Underground line
West Coast Main Line
long-distance main railway line in the United Kingdom
Thameslink
Thameslink is a main line route on the British railway network, running from , , , , , and via Central London to , , , Rainham, , , and . The initial network opened as a through service in 1988 and, as of 2025, currently calls at 135 stations in regular service. The entire route is currently operated by Govia Thameslink Railway. A part of the route, from to , runs 24 hours a day, except on early Sunday mornings and during maintenance periods.
East Coast Main Line
railway line between London and Edinburgh in the United Kingdom

Watford DC Line
commuter railway line from London Euston to Watford Junction
Midland Main Line
long-distance main railway line in the United Kingdom
West Anglia Main Line
mainline railway line in East Anglia, England
Baker Street and Waterloo Railway
underground railway company in London
Croxley Rail Link
plan to re-route part of a London Underground line