 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.East of Finchley Road there were three alternative routes towards Camden Town