CONTROL METHOD, SERVER, AND SYSTEM

A control method for controlling a plurality of vehicles automatically traveling to follow an operation schedule includes judging, by a server, whether a first vehicle is delayed relative to the operation schedule, judging, by the server, whether passing of the first vehicle by a second vehicle has occurred when the first vehicle is judged to be delayed relative to the operation schedule, and setting, by the server, a limit on a vehicle speed of the first vehicle when the passing is judged to have occurred.