Most people do not assume that autopilot systems on commercial aircraft are entirely capable of performing a flight including take-off and landing with out any pilot intervention. Furthermore, autopilot is a broad term for partially autonomous systems in many other aircraft. Some autopilot systems may have been demonstrated capability of performing specific flight maneuvers, but many only perform simple tasks such as holding altitude and/or heading. Pilotage is defined in the FAA’s Pilot’s Handbook of Aeronautical Knowledge as navigation by reference to landmarks or checkpoints. Therefore autopilot literally means [continous] automatic navigation by waypoints. It does not specifically deal with collision avoidance or interactions with traffic control devices.