What might driving on an automated highway be like The answer depends on what kind of system is ultimately adopted. Two distinctive (1) ______ types are on the drawing board. The fast is a special-purpose lane system, which certain lanes are reserved for automated vehicles. The second is a (2) ______ mixed traffic system; fully automated vehicles would share the road with particularly automated or manually driving cars. A special-purpose lane (3) ______ system would require more expensive physical modifications to existing highways, and it promises the greatest gains in freeway capacity. (4) ______ Under either schemes, the driver would specify the desired, (5) ______ destination furnishing it to a computer in the car in the beginning of the trip. If a mixed traffic system was in the place, automated driving (6) ______ could begin whenever the driver was on suitably equipped roads. Whenever special-purpose lanes were available, the car could join (7) ______ existing traffic in two different ways. One method would use a special onramp. As the driver approached the point of entry for the highway, devices installed on the roadside would electronically check the vehicle to determine their destination and to ascertain that it had the proper (8) ______ automation equipment in good working order. Either approach would harmonize the movement of new entering (9) ______ vehicles with those already traveling. Automatic control here should allow smooth merging. And once a vehicle had settled into automated (10) ______ travel, the driver would be free to release the wheel, open the morning paper or just relax.