"variable speed limit" . "Through-junction running" . "Smart Motorways" . "Controlled motorway" . . "smart motorway" . . "dynamic hard shoulder running" . "hard shoulder running" . "Smart Motorway" . "smart motorways" . "smart freeway" . "all-lane-running motorway" . . "Smart motorways" . . "all lane running" . "Smart motorway" . "variable mandatory speed limit" . "managed motorway project" . "Smart motorway" .