M25 motorway the east of Gravesend and Grays, the Lower Thames Crossing, in order to relieve congestion on the A282 Dartford Crossing and connect the M25 at North Ockendon in Essex with the M2 in Kent. At Junction 5, the clockwise carriageway of the M25 is routed off the main north–south dual carriageway onto the main east–west dual carriageway with the main north–south carriageway becoming the A21. In the opposite direction, to the east of the point where the M25 diverges from the main east–west carriageway, that carriageway become the M26 motorway. The radial distance from London (taken as Charing Cross) varies
London Colney London Colney London Colney () is a village and civil parish in Hertfordshire, England. It is located to the north of London, close to Junction 22 of the M25 motorway. It is near St Albans and part of the St Albans District. At the time of the 2001 census the population of London Colney ward was 7,742, increasing to 9,507 at the 2011 Census. It is considered a satellite or dormitory village of St Albans, where some villagers travel to work and shop. The civil parish was formed in 1947 from part of St Peter Rural. London Colney Primary School