ON-DEMAND VEHICLE OPERATION MANAGEMENT DEVICE, ON-DEMAND VEHICLE OPERATION MANAGEMENT METHOD, AND ON-DEMAND VEHICLE OPERATION MANAGEMENT SYSTEM

An operation management center (20) divides an operation area in which an on-demand bus (10) operates into a plurality of predetermined sub-areas, and searches for candidate routes on which the on-demand bus (10) travels for each divided sub-area. The center (20) sets one of the retrieved routes as a basic route, and sets, as adjustment time for each divided sub-area, time required when the bus (10) passes through a location separated from the basic route. Thus, by setting such adjustment time for each sub-area, and by using the adjustment time set for each sub-area, the center (20) can determine an operation plan that takes into account an additional request while reducing an impact on the determined operation plan.