Drove a few miles on these this weekend, had forgotten how long they were. Seems most sections would be ideal candidates for conversion to an autobahn type road. The roads, the junctions and the surroundings all conducive to much more effective transportation.
As for the cameras cut crashes nonsense, no they don't, the camera vans on the bridges cause Mr frustrated mercedes driver to jam on the anchors from 90 down to a wholly unreasonable 60 just as he swings in front of you. The camera did nothing positive in that situation but we only record their "successes" not their failures, on an otherwise deserted 3 lane motorway in good weather. Annoys me that because that type of situation doesn't appear on anyone's spreadsheet, it doesn't exist when it comes time to make decisions.