The road measures 26.45 miles long and would take a car obeying speed limits 47 minutes to travel its length.
The A406 is a A Road and is located in the Zone 4 Highways Region.
This is a true long-distance route, journeying through numerous towns like Chiswick, Acton, Ealing, Willesden, Wembley, Cricklewood, Golders Green, Hendon, Finchley, East Finchley, North Finchley, Muswell Hill, New Southgate, Southgate, Palmers Green, Wood Green, Upper Edmonton, Chingford, Walthamstow, WOODFORD GREEN, South Woodford, ILFORD, Leytonstone, Manor Park, East Ham, Newham, and BARKING.
The road connects Greater London and Greater London.