Simon:
newmercman:
They’re already doing that GPS cruise control thing, that’ll be the end of the debate on speeds on single and dual carriageways, you won’t have a choice in the matterAmazing technology for sure, but is it necessary? Surely it is taking things a little bit too far? How long before cameras are incorporated and the steering is also controlled by GPS? We already have Adaptive Cruise Control that slows the vehicle or applies the brakes when you get within a certain range of the vehicle in front, how long before the driver is redundant?
Then there’s the lane watching camera in Merc Safety Trucks and probably others. At the moment it beeps at you if you wander too close to the edge of your lane without indicating. It isn’t much of a jump from beeping to steering. So we’ve got trucks that’ll follow in convoy, braking and speeding up, all on their own. They can change gear on their own. They can tell if you are weaving a bit. The only thing they can’t do is reverse onto a tight bay, but there are plenty of shunters.
Next thing will be the suicide lane on motorways will be truck trains only. A trunk driver in the front truck, all the rest just follow it from service area to service area. Drop 3 off, pick 5 up. A local shunter comes in, drives a truck to a delivery, reloads it, does the same with the others, dropping them back at the service area, ready to be collected by the next truck train coming through.
OMG! Can you imagine how hard Carryfast is getting at the thought of that 
Seriously though, it will be here in one form or another before long. I don’t think it will take the form you suggest, not at first, more likely the technology will be used as a safety measure, that will guarantee it gets passed into law in today’s zero risk society, after that, your suggestion will start making more and more sense 