[Paianni]

'Smart motorway' is an umbrella term for various traffic control schemes used on motorways since the 90s. The version deemed unsuitable is dynamic hard shoulder running (called 'managed motorway' at inception), first used on the M42 from 2006 on.

All new projects in England since 2013 have used All Lane Running (an alternative to widening, where the HS is permanently converted into a traffic lane). This format is not being killed off.

The A14 Huntingdon Bypass was supposed to open as a smart motorway (A14(M)) but the legislation hasn't passed soon enough, so it will open as an all-purpose road with motorway-style restrictions and smart tech.