Dudding Hill line

The Dudding Hill Line is a railway line in west and north-west London running from Acton to Cricklewood. It is roughly 4 miles long, with a 30 miles per hour speed limit, and semaphore signalling. The line has no scheduled passenger service, no stations, and is not electrified. It is lightly used by freight trains and, very occasionally, passenger charter trains.

The southernmost point of the Dudding Hill line is in Acton, where it branches north from the North London Line between Acton Central and Willesden Junction stations, immediately to the west of the site of the proposed Old Oak Common High Speed 2 station. From there it heads north then east, passing through Gladstone Park and terminating at a triangular junction with the Midland Main Line between Cricklewood and Hendon.

Wikipedia