Ya know before we start adding more wires to the trucks, I think its time to start enforcing traffic laws we have in place now and go from there, for both 4 wheelers and big trucks. How many times have you come out of a construction zone and said to yourself, Sheet, I cant believe I made it thru there, all the time there was patrol cars at both ends of the construction site. How many times do you see trucks and cars tailgating, improper passing, improper lane changes, high rate of speed, distracted driving, etc etc. Enforce what we have in place now and I'm thinking traffic deaths will drop dramatically.
I'm also thinking I don't see that many rear end collisions into a big truck as much as I see a big truck that has plowed into another vehicle. Speed limiters won't stop rear end collisions but enforcing tailgating laws will certainly slow them down.