Re: "and provide data to help road users be better informed about their journeys."
About 20 miles of the M6 in Staffs in both directions is currently under speed restrictions because of on going work until 2022. But there is no work going on. It appears to have been fully upgraded to "smart motorway".
What is the delay
Why 20 0r MORE MILES AT A TIME. Why not do it in a rolling 2 mile stretch.
The interest on the cones used in this stretch would probably pay for a few hundred nurses.
Any roadworks increase the likleyhood of accidents, especially in such long stretches. Can the HA/HE/whatever justify these extra accidents.