 The purpose of the Balham Loop motorway was to provide a connection between Ringway 1 and the M23 motorway running through south London.Other incoming motorways, such as the M1 and M11, were intended to terminate directly on the innermost Ringway, but the route of the M23 through south London was considerably more difficult than the M1's route through north London and there was no simple or direct route for the M23 to reach Ringway 1 in Clapham.Instead, the Balham Loop would have acted as a distributor road connecting to the West Cross Route and SCR at Battersea and to the SCR at Brixton, via the "South Cross Route to Parkway D Radial".