Catford Loop Line

The Catford Loop Line is a railway line in southeast London. Incorporated as the Shortlands and Nunhead Railway in 1889 it was opened by the London, Chatham and Dover Railway on 1 July 1892. It carries a suburban stopping service from central London to Sevenoaks and is a relief route for trains from London Victoria to the Kent coast (see Chatham Main Line). The line leaves the former Crystal Palace High Level branch and the link to Lewisham (the former Greenwich Park branch) at a junction east of Nunhead. In some usage the line from the main line at Brixton to Nunhead, with stations at Denmark Hill and Peckham Rye, is also included in "The Catford Loop".

The five stations on the original route are:
 * Crofton Park
 * Catford
 * Bellingham
 * Beckenham Hill
 * Ravensbourne

The line rejoins the main line at Shortlands Junction, west of Shortlands. The length of the Catford Loop from Nunhead is almost five miles (8 km), and from Brixton nearly eight miles (12.5 km). The line was electrified with the other SECR urban routes on 12 July 1925 by the Southern Railway on its 660 DC third rail system.