But yeah 50mph limits across are motorways are being considered.
Which is only going to have the result of pushing traffic onto A Roads which have 60 limits and no average speed cameras, so people will exceed those limits...!
And, for anyone who hasn't experienced the joys of 50mph average speed controlled motorways, come down here to Hampshire where a long section of M27 is currently being "upgraded" to a "smart" motorway.
My FZ6 will easily cruise at 70 mph, trying to keep the speed down to 50 on a long piece of road with barely a turn on it is mind-numbingly tedious and it is so easy for your concentration to drift and suddenly Oops! You're doing over 50, so then you've got to slow to 45 to avoid tripping the cameras.
And, of course, all those cagers who normally drive around with their brains on autopilot will switch off, so you've got to remind yourself to watch out for them suddenly changing lanes for an exit that they've only just noticed...
There are so many reasons why this is a stupid idea that sounds really great if you don't think it through