NAVIGATION SYSTEM, NAVIGATION SERVER, NAVIGATION METHOD, AND PROGRAM

PROBLEM TO BE SOLVED: To provide a navigation system, a navigation server, a navigation method, and a program, which enable re-searching for a user desiring route in consideration of a pre-search route, thereby providing the desired route.SOLUTION: A method includes: obtaining reference route information related to a reference route to display the reference route information overlapped on map information; setting, as an origin of change, a stopping point, a route or a pedestrian path in a guide route corresponding to selected given spot included in displayed route information on the basis of the route information, in a case where the given spot is selected; setting, as a destination of the change, a stopping point, a route or a pedestrian path corresponding to designated given geographical spot included in displayed map information on the basis of network information in a case where the given geographical spot is designated; obtaining post-change route information related to a changed route to be used after the change on the basis of a result of comparing between the change origin and change destination; and displaying the post-change route information.