If they are anything like the M62 “Smart motorway” well the cams are still there on the overhead stantions. If the speed limits up at 60 the cam will pick up anyone speeding. I travel every morning at 6am between bradford and leeds and its not too busy but they put the 60 limit up and anyone speeding cops for it. They drop it down to 40 sometimes causing havoc when there`s no need for it . In the winter months you can see the cams flash on the other carriageway in the dark when someones been caught. I suppose someones got to pay for the “upgrades”