 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.