Behavior management device, non-transitory computer-readable storage medium, and behavior management method

A behavior management server includes: a desired behavior specification unit that acquires, from a desiring user included in a plurality of users, a desired behavior including at least a destination desired to be visited by the desiring user; a route determination unit that determines a route to the destination; a congestion prediction unit that predicts whether or not an element included in the route becomes congested; an alternative plan determination unit that determines an alternative plan indicative of at least an alternative element that is an alternative to a congestion element, which is an element predicted to become congested, in order to avoid congestion of the congestion element; a target user decision unit that decides a target user to whom the alternative plan is to be proposed out of the plurality of users; and a proposal unit that proposes the alternative plan to the target user.