Caterham line trains at London Bridge in the peak hours, rather than continuing to Charing Cross or Cannon Street, to avoid complex conflicting movements on the approaches to London Bridge. After 1952 the South Eastern Division of British Railways implemented a widespread scheme to run ten-car trains in the outer suburban area. In many places this involved platform lengthening, although in the case of Caterham, only the Purley platforms required this attention, as the trains always divided at Purley with one portion going to each of Caterham and Tattenham Corner. This operation started in 1955. Current train services The passenger train service (from 11 December 2022) is every thirty minutes from Caterham to London Bridge, seven days a week. The trains combine with a Tattenham Corner portion at Purley, and are operated by Southern. Topography Gradients Caterham is located high in the hills and the line falls steeply from Caterham station to Purley, at a ruling gradient of 1 in 90 and 1 in 110. Locations Caterham; opened 5 August 1856; new station 1 January 1900; still open; Helliloo Platform; opened about 1856; closed by 1899; Warlingham; opened 5 August 1856; renamed Whyteleafe South 11 June 1956; still open; Whyteleafe; opened 1 January 1900; still open; Coulsdon; opened 5 August 1856; renamed Kenley December 1856; still open; Godstone Road; opened 12 July 1841; closed 1 October 1847; reopened 5 August 1856 as Godstone Road Caterham Junction; altered to just Caterham Junction later in 1856; renamed Purley 1 October 1888; still open. External links History of the branch line Notes References Rail transport in Surrey Railway lines opened in 1856 Railway companies disestablished in 1859 Railway lines in London Railway lines in South East England Standard gauge railways in England Transport in the London Borough of Croydon British companies disestablished in 1859