What are Smart Motorways and how they work
Whatever you say about smart motorways, they are a necessary evil in getting us from A to B. On a bog-standard motorway in United Kingdom, the speed limit is 70 mph for cars and 60 mph for PCVs and HGVs. If one section of motorway is designated as a Smart Motorway, the speed limit varies from the default 60 or 70 miles per hour. Speed limits are adjusted in accordance to traffic flows. This is a process known as Active Traffic Management.