 Whilst most of the route is now a six lane dual carriageway with grade separated junctions other parts remain at a much lower standard.At the western end of the North Circular a new section of motorway would have been constructed to take the route of Ringway 2 eastwards from the junction with the M4 at Gunnersbury along the alignment of the railway line through Chiswick to meet and cross the River Thames at Barnes.The route of the eastern section of the North Circular Road south from the A406's junction with the M11 to the junction with the A13 (the ""South Woodford to Barking Relief Road"") was built on the planned motorway alignment and the section between South Woodford and Redbridge roundabout (A12 junction) was, for a time, temporarily designated as part of the M11.