I have actually driven truck, and when I stopped, had over one million safe millions, I would trade couple hours from inside, was fun. I don't ever see driverless trucking cause of safety reasons, GPS does and will always have problems, I have used them since 1998, they will say to turn right and end up feet from the ocean or docks, you will lose signal during storms and tall buildings, it can't tell when driving black or regular ice, sometimes a football field away from next vehicle is not far enough, I have hauled three trailers few times, never been as scared in my life doing that, so easy to hurt 4 wheelers-when there is more weight in end trailer-it fish tails, there are safety features now that will slow truck down when people cut in front, but if they aimed wrong you slow down going under a bridge. Eventually government will have more electronics so if company does not put on governors on engines, they will rule. I don't mind them doing that at all, better wages for truckers then and better fuel economy as best speed for trucks is like 52mph but I doubt they ever get that low, would clog up all the roads. More accidents occur when there are split speeds for car and trucks. Many Car people DO NOT know rules of the road and driving in LA, people are much more friendly to truck drivers and slowing down to let trucks onto expressways than most much smaller towns. There can be many improvements in industry but the wages have to go up, unless you are smart and read much where the good companies are, you end up working for $35k a year but most new truckers who start, won't be there year later, you have to love not being home 26 days of the month. And good companies pay $75k to $120k as company driver with tons of bennies.
"18 Speed manual transmissions are pretty much the industry standard" not even close in USA, ten speed bought by almost every huge company, unless you hauling over weight, all those gears not needed, Jake brakes can do much slowing with 80,000 lb load going down the likes of Cabbage Pass on I-84.
I have seen the trailers with the automatic chain devices, but what happens when it breaks or put on when missing links. I don't ever see electric trucks, have to carry couple thousand pounds of batteries to tackle 8% grades out west? LOL and all the switchbacks, have a huge number of trucks in right hand lane run out of power and no shoulder to pull over, LOL I doubt the truck be able to see mile in front of you of tornadoes or sheet of snow barreling down mountain. No way in 20% fuel cost saving, just no way, transmission and right gear is just matter of speed, each gear has a speed, speed is controlled by weight of load and speed laws, traffic, spring time is pot hole season and soft dirt roads, summer is construction time which means if I see rocks on shoulder, they will be in road and go slower and not drive over rocks as tires will fling the rocks can be over 100mph at vehicles to side and back of truck. Have no clue how without driver going to fuel, truckstops have reduced staffs. Many states have idling laws like Ca, more trucking companies going with battery heaters and cooling, almost all have drivers go for CPAP tests.
Either way, more regulation will mean higher prices when you buy something. Just remember though, it only takes one accident to wipe out YOUR family, so regardless of driver free or driver in cab, trucks can't slow down quickly, you have to yield when on ramp to freeway, there is less tailgating then ten years ago, better to move out of the way, driving is no game for anyone. The are more weird people driving a car than a truck.