M26 motorway the M26 at that time formed part of Ringway 4 and would have been designated as part of the M25. Construction of the first part of the M25 began in 1972 but before it opened, plans for the "London Orbital" motorway were modified to combine the southern and western part of Ringway 4 with the northern and eastern part of Ringway 3. To connect the two separate routes, which together were numbered as the M25, an additional section of road needed to be planned and the M25 route was diverted northwards from junction 5 to meet Ringway 3 at Swanley
London Borough of Sutton provided by Govia Thameslink Railway under the Southern and Thameslink brands. A sizeable bus infrastructure which is part of the London Buses network operates from a main hub on the Sutton one-way system. Services are operated under contract by Abellio London, London General, London United, Metrobus and Quality Line. Route X26 is the longest route in London, operating from Croydon to Heathrow Airport via Kingston. Sutton is linked into the national motorway network via the A217 and M25 orbital motorway at Junction 8. The M25 skirts the south of the borough, linking Sutton with other parts of London and the