A method of communication on the automatic highway

The system described is designed around the use of a shift register running the length of the automatic highway. Receiving and transmitting antennas are located along the center-lines of the lanes. Signal formats, data rates, and the general process of providing all automatic cars with the positions and speeds of all other cars, including manually operated cars around them in their own and in adjacent lanes, are described. The design example describes the shift register cycle, data format, and transmission rates of a suggested system. Each automatic car receives the locations of, and information from, all cars within half a mile ahead of and behind its own position in its own and adjacent lanes several hundred times a second. Information from the roadside can also be sent to all the automatic cars.