Purley railway station is in the London Borough of Croydon on the Brighton Main Line, 13 miles 29 chains (21.50 km) measured from London Bridge, in Travelcard Zone 6. It is a junction, with branches to Caterham and Tattenham Corner.
Purley railway station
The Brighton Main Line is a railway line in southern England linking London to Brighton. It starts at two termini in the capital, London Victoria and London Bridge, and the branches from each meet at East Croydon, from where the route continues southwards via Gatwick Airport to the coast. The line serves the suburbs of South London, as well as the towns of Redhill, Horley, Crawley, Haywards Heath, and Burgess Hill.
Ouse Valley Viaduct, West Sussex
Grosvenor Bridge carries the Brighton Main Line over the River Thames between London Victoria and Battersea Park
The approach to London Bridge station looking eastwards: The Brighton Main Line tracks are on the right hand side (south side) of the formation.
South portal of Merstham Tunnel