A4127 Sudbury Court Drive This road appears, both on the ground and on the map, as if it ought to be one of the main arterial routes into and out of London with a through dual carriageway and outer parallel access roads to the housing estates on either side. However the dual carriageway is only about 500 metres long, most of which is visible in this image, and it runs in a north-easterly / south-westerly direction at ninety degrees to an arterial route. Was it originally intended as a section of some sort of new ring road beyond the North Circular?
Anyway this is the northern end of A4127 in North Wembley. The southern end is in Norwood Green about 6 miles or about 10 kilometres away.