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.

The Thameslink Programme was a major £7billion scheme to increase capacity on the central London section by accommodating more frequent and longer trains, and providing additional routes and destinations. The programme was divided into three key phases, with the final Key Output 2 introducing world-first Automatic Train Operation (ATO) technology over European Train Control System (ETCS) Level 2, enabling 24 trains per hour through the core section. The new services began operating in 2018, though the full projected timetable of 24 trains per hour has never been achieved. In 2016, new trains started operating on the route and replaced the , and trains which were withdrawn and transferred elsewhere.