Truck air brakes are finicky because they are mechanically designed to distribute brake pressure evenly across the wheels in response to one input -- pressure from the driver&#x27;s foot on the brake pedal. An automated cab could communicate more information: desired speed, tolerance, required stopping distance, and general vehicle stability info, and a microcontroller at each wheel could combine that with sensor info about road conditions and temperature <i>at that wheel</i> to determine how much brake to apply and where -- all with faster reaction times than a human driver would be capable of.