Later Upgraded Section (LUS)
The LUS refers to the sections of the M25 between junctions 5 and 7 and between junctions 23 and 27.
These schemes, totalling £317 million, were delivered under the Connect Plus DBFO on behalf of the Highways Agency, with the work carried out by Skanska Balfour Beatty Joint Venture.
These sections of the motorway use technology to manage congestion and are known as “smart” motorways. The hard shoulder has been permanently converted into a traffic lane within these sections, known as “all lane running”. This, together with the introduction of enhanced on-road technology to manage traffic flow is relieving congestion, improving the reliability of journey times and providing a boost for businesses and the wider economy, without reducing safety.
All lane running increases the capacity of the motorway to reduce congestion and improve journey reliability. It does this at a lower cost and with less disruption than a traditional road widening scheme.