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
M60 motorway 19-24) opening in October. The original plan called for a completely new motorway, but policy change led to the plan which created the current motorway. As soon as it opened, the motorway got close to its projected maximum volume on significant sections. As an orbital motorway, it is equivalent to London's M25 motorway; unlike the M25, the M60 forms a complete loop. In 2004, a section of the northern M60 was the UK's busiest stretch of road, with an average of 181,000 vehicles per day using the stretch between junctions 16 and 17. Usually, the western side of the M25