WORK AREA MANAGEMENT METHOD, WORK AREA MANAGEMENT SYSTEM, AND WORK AREA MANAGEMENT PROGRAM

[Problem] To reduce workload related to preparatory work for work by autonomous traveling. [0002] [Solution] A work area management method includes storing first area information that represents a first work area 640 that determines a first work route 650 along which a first work device 100 moves to perform a first work in a field 500, and that is determined on the basis of a positioning position of the first work device 100. The work area management method also includes outputting the first area information as information that represents an area for determining a second work route 750 along which a second work device 300 different from the first work device 100 moves to perform a second work in the field 500. The outputting the first area information may include outputting warning information representing that the first area information is unsuitable for determining the second work route 750 when the first area information does not satisfy a predetermined condition.