Thameslink is a 24-hour mainline route on the British railway network, running from Bedford, Luton, St Albans City, Peterborough, Welwyn Garden City, London Blackfriars and Cambridge via central London to Sutton, Orpington, Sevenoaks, Rainham, Horsham, Three Bridges, Brighton and East Grinstead. The network opened as a through service in 1988, with severe overcrowding by 1998, carrying more than 28,000 passengers in the morning peak. All the services are currently operated by Govia Thameslink Railway.
Wimbledon is a National Rail, London Underground, and Tramlink station located on Wimbledon Bridge, Wimbledon in London, and is the only station in London that provides an interchange between the London Underground and Tramlink. The station serves as a junction for services from the Underground's District line and National Rail operators, as well as Tramlink services. The station is in Travelcard Zone 3. It is 7 miles 19 chains (11.6 km) from London Waterloo on the South West Main Line.
Epsom railway station serves the town of Epsom in Surrey, England. It is located off Waterloo Road and is less than two minutes' walk from the town's high street. It is 14 miles 18 chains (22.9 km) down the line from London Waterloo.
East Croydon is a railway station and tram stop in Croydon, Greater London, England, and is located in Travelcard Zone 5. At 10 miles 28 chains from London Bridge, it is the 17th busiest station in Britain, was the 10th busiest in 2020–21, and is one of the busiest non-terminal stations in the country. It is one of three railway stations in the London Borough of Croydon with Croydon in their name, the others being West Croydon and South Croydon. A Tramlink tram stop is located immediately outside the main station entrance.
Birkbeck is a railway station and light rail stop in the London Borough of Bromley in the southern suburbs of London. On the rail network it is 10 miles 26 chains (16.6 km) measured from London Victoria. It is located on Elmers End Road (A214) and alongside Beckenham Crematorium.
Beckenham Junction is the main railway and tram station in Beckenham in the London Borough of Bromley, south London. The railway stop is on the Chatham Main Line, 8 miles 53 chains (13.9 km) down the line from London Victoria and situated between Kent House and Shortlands. The tram stop is one of the eastern termini of Tramlink.
West Croydon is a combined railway, bus station and tram stop in Croydon, south London. It is served by National Rail, London Overground, Tramlink and London Buses services and is in Travelcard Zone 5.
Cheam railway station serves Cheam in the London Borough of Sutton. It is located on the Sutton & Mole Valley Lines section from Sutton to Epsom with trains to London Victoria and London Bridge both via Mitcham Junction and West Croydon.
Norwood Junction railway station is a National Rail station in South Norwood in the London Borough of Croydon, south London, and is in Travelcard Zone 4. It is 8 miles 55 chains down the line from London Bridge.
Hackbridge railway station is a railway station at Hackbridge in the London Borough of Sutton in South London. The station is served by Southern and Thameslink. It is in Travelcard Zone 4.
Carshalton railway station is a railway station at Carshalton in the London Borough of Sutton in South London. It is located between Sutton and Hackbridge.
Sutton railway station (sometimes referred to as Sutton (Surrey) on tickets and timetables) is in the London Borough of Sutton in South London and is the main station serving the town of Sutton. It is served by Southern and Thameslink trains, and lies in Travelcard Zone 5, 14 miles 75 chains (14.94 miles, 24.04 km) down the line from London Bridge, measured via Forest Hill.
The Arun Valley line, also known as the Mid Sussex line, is part of the Southern- and Thameslink-operated railway services. For the initial part of the route trains follow the Brighton Main Line, and at a junction south of Three Bridges the route turns westwards. It then runs via Crawley, Horsham and Arundel, before meeting the West Coastway line at Arundel Junction. Trains on the Arun Valley line then proceed to either Bognor Regis, Portsmouth & Southsea or Southampon Central.
The Sutton and Mole Valley lines were constructed between 1847 and 1868 by the London, Brighton and South Coast Railway, the London and South Western Railway and the LBSCR-sponsored Horsham, Dorking and Leatherhead Railway.
Horsham railway station serves the town of Horsham in West Sussex, England. It is 37 miles 56 chains (60.7 km) down the line from London Bridge, measured via Redhill, on the Arun Valley Line and the Sutton & Mole Valley Lines, and train services are provided by Southern and Thameslink. Services on the Sutton & Mole Valley Line from London Victoria via Dorking terminate here, as do Thameslink services from Peterborough via London Bridge. The other services continue into the Arun Valley: a half-hourly service from London Victoria to Bognor Regis, and hourly services to Southampton Central or Portsmouth & Southsea. These trains usually divide here with the front (Southampton/Portsmouth) portion travelling fast and the rear half providing stopping services.
Dorking railway station is a railway station in Dorking, Surrey, England. Located on the Mole Valley line, it is 22 miles 8 chains (35.6 km) down the line from London Waterloo. The station is one of three that serve the town of Dorking, alongside Dorking Deepdene and Dorking West stations. Dorking and Dorking Deepdene stations are within walking distance of each other and interchange between them on a through ticket is permitted.
Holmwood railway station serves the villages of Beare Green and South Holmwood in Surrey, England, on the Sutton and Mole Valley Lines between Dorking and Horsham, 27 miles 5 chains (43.6 km) from London Waterloo.
Mitcham Eastfields is a railway station in London, United Kingdom, which opened on 2 June 2008. The station is located at Eastfields Road level crossing, in an area previously poorly served by public transport. The nearest station was Mitcham Junction, which along with Mitcham tram stop, was over 1 mile (1.6 km) from the district. It is in fare zone 3.
Govia Thameslink Railway (GTR) is a train operating company that operates the TSGN rail franchise in England. Within the franchise, GTR runs trains under the sub-brands Thameslink, Great Northern, Southern and Gatwick Express. GTR is a subsidiary of Govia, which is itself a joint venture between the British Go-Ahead Group (65%) and French company Keolis (35%).
The Portsmouth line is a secondary main line originally built by the London, Brighton and South Coast Railway and the London and South Western Railway between 1847 and 1868. It leaves the South London Line at Peckham Rye, with connections to the Victoria branch of the Brighton Main Line at Streatham, and continues via Sutton, Epsom and Dorking to join the Mid-Sussex Line at Horsham.
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London transportportal 
