M4/M5 Smart Motorway
We delivered south west England’s first Smart Motorway, installing state-of-the-art technology to improve journeys.
As Smart Motorways, the M4 and M5 now respond to traffic conditions to ensure road safety and increase traffic capacity. Innovative cables beneath the road relay information to responsive signs, varying speed limits according to the driving conditions. The hard shoulder is also made available to traffic at particularly busy times of the day.