I thought about this for a while but towing cables (tho high maintenance) are so much simpler. Have some wind propellers and/or solar by the side of the road wi

I thought about this for a while but towing cables (tho high maintenance) are so much simpler. Have some wind propellers and/or solar by the side of the road with very little conversion and transport. Hook up any vehicle. It works when it works, when it doesn't it isn't a big deal. If someone hits the breaks everyone slows down. Make it big for trucks, small for few vehicles or even smaller for bicycles, roller skates, soap boxes, robot taxi's, etc walking dogs, making sure employees arrive at work on time. and so on