DEVICE, METHOD, COMPUTER PROGRAM AND COMPUTER READABLE RECORDING MEDIUM FOR ROUTE GUIDANCE

Disclosed herein is a route guidance method. The route guidance method includes calculating a driving route from a current location of a moving body to a destination, determining whether an intersection or a forked road exists at a predetermined distance from the current location of the moving body on the calculated driving route, checking, when the intersection or the forked road exists, link information corresponding to a lane in which the moving body is located and determining a moving direction toward the intersection or the forked road, determining an entry route for entering the intersection or the forked road according to the determined moving direction, and transmitting the determined entry route to the moving body, wherein the determining of an entry route includes: determining whether a lane for the moving body to run in is to be changed according to the moving direction toward the intersection or the forked road, if the lane for the moving body to run in is to be changed, determining a traffic flow on a redirection lane in which the moving body is to run and a lane adjacent to the redirection lane according to the moving direction, and determining an entry spot of the moving body according to the determined traffic flow.