OLD OAK COMMON

'Old Oak Common' is an area of London in between Harlesden and Acton best known for its railway depots, particularly Old Oak Common TMD. Further south is an open area, Wormwood Scrubs Park, and Wormwood Scrubs prison.
The area is also the location where two GWR main lines bifurcate: the 1838 route to Reading via Slough, and the 1906 New North Main Line via Greenford to Northolt Junction, the start of the Great Western and Great Central Joint Railway line. The former is in use for regular passenger service; the latter is used overwhelmingly by freight trains and ECS movements, though the timetable (p.15) shows a single workday train from Gerrards Cross via West Ruislip to Paddington.