North Cross Route

North Cross Route (NCR) was a planned motorway-standard road which would have formed the northern section of Ringway 1 (London Motorway Box) and would have formed the innermost circuit of the London Ringways network. The six-lane dual carriageway with grade separated junctions to an extended M1 Motorway was planned during the late 1960s along with the rest of the Ringway scheme. It was never constructed due to large-scale opposition from many quarters.

The NCR would have started in Harlesden with its western end having a junction to the east of Willesden Junction station with the West Cross Route, the western section of Ringway 1 coming north from Shepherds Bush. Also connected to the junction here would have been Harrow Road (A404) and an unbuilt motorway that would have headed south-west along the National Rail North London Line to meet the M4 at Gunnersbury. A spur from this motorway would have connected to the Western Avenue (A40) near Gypsy Corner.

Heading east, the NCR would have run in a cutting along the north side of the North London Line to Brondesbury and Kilburn High Road (A5) . To accommodate the motorway cutting, most of the houses on the south side of the roads lining the railway would have been demolished. Roads that crossed the railway line, such as Willesden Lane, would have also bridged the sunken motorway.

Between Kilburn High Road and West End Lane a major Y-shaped junction would have been constructed where the NCR was to meet the intended end of the M1 motorway. This was originally planned to be continued south of its Staples Corner junction with the North Circular Road (A406) (Ringway 2) along the east side of the St. Pancras mainline through Cricklewood. The M1 junction would have been provided with slip roads allowing traffic movements between the M1 and NCR in each direction and the NCR would also have been provided with additional lanes between this junction and a roundabout to have been built at Finchley Road (A41) between Finchley Road Underground station and Finchley Road & Frognal National Rail station.

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Wikipedia