AUTONOMOUS DRIVING SYSTEM, AUTONOMOUS DRIVING CONTROL METHOD, AND NON-TRANSITORY STORAGE MEDIUM

A system (10) includes: one or more storage devices (120) that store specific position information (220) indicating a specific position where an autonomous vehicle (1) has a possibility to require remote support; and one or more processors (110) configured to set a first target route as a target route, determine whether an abnormality has occurred in a remote support system (4), when the abnormality is detected in the remote support system (4), search for an alternative route that is a route to the destination based on the specific position information (220), the alternative route having a smaller number of the specific positions to be passed through by the autonomous vehicle (1) than the first target route, when the alternative route is found, change the target route from the first target route to the alternative route, and control the autonomous vehicle (1).