Chatham Main Line
While travelling between Bromley South and London Victoria, the trains can either travel on the Main Line, through Beckenham Junction, Herne Hill and Brixton, or can go via the Catford Loop Line, travelling through  and , and then just past  it either picks up the Southeastern line all the way, or can follow the Southern (Atlantic) Line through  before crossing back over to the Southeastern Line to London Victoria. Some services travelling via  now stop at .