Abstract: A communication terminal is connected to a server and transmits a route search request for a destination to the server and obtains a route searched for from the server according to the request. When setting a destination or transmitting the route search request to the server, the terminal requests the server for guidance information targeted for at least an update target area around a current location among update target areas. The guidance information is for providing movement guidance for a mobile unit, and the update target areas are areas whose terminal-side map information included in the terminal is an older version of map information relative to the server's device-side map information. The terminal receives the guidance information transmitted from the server according to the request for the guidance information, and provides the movement guidance for the mobile unit using a route set on the terminal and the received guidance information.

Abstract: A server is connected to a communication terminal and configured to receive a departure point, a destination, and a route retrieval request from the departure point to the destination from the terminal and to deliver a route retrieved in response to the received route retrieval request to the terminal. When the route retrieval request is acquired from the terminal, the server acquires route information related to a target route that is a route corresponding to a predetermined distance from the departure point in a terminal-recommended route that is a route from the departure point to the destination and is retrieved by using terminal-side map information provided in the terminal. The server retrieves a route to the destination that includes at least a part of the target route by using device-side map information provided in the server and the route information, and delivers the retrieved route to the terminal.

Abstract: Navigation systems, methods, and programs output on an output device information on a set normal travel route when a guidance route for providing guidance to a user is not set. The systems, methods, and programs set a reference route satisfying a predetermined first setting condition as the normal travel route, and when the user travels along a temporary route that shares a start point and an end point with the reference route and is different from the reference route, specify a temporary travel factor that is a factor in which the user travels along the temporary route. The systems, methods, and programs set a second setting condition that varies depending on a content of the specified temporary travel factor, and change the normal travel route from the reference route to the temporary route, based on the second setting condition.

Abstract: Route search systems, methods, and programs search for a recommended route using a cost value of a link or a node that constitutes a route. The systems, methods, and programs calculate the cost value of the link or the node on the basis of calculation material information that serves as a material for calculating the cost value, and specify a reliability degree of the calculated cost value of the link or the node on the basis of a number of pieces of the calculation material information used to calculate the cost value of the link or the node. The systems, methods, and programs correct the cost value of the link or the node, the reliability degree of which has been specified, on the basis of the specified reliability degree, and search for the recommended route using the corrected cost value.

Abstract: Route search systems, methods, and programs search for a recommended route for transfer with switching between a plurality of transportation modes. The systems, methods, and programs acquire link information for specifying a link for transfer by each of the plurality of transportation modes and connection information related to connection between links for transfer by different transportation modes, and set a condition for switching from a first transportation mode to a second transportation mode, which is different from the first transportation mode, on the basis of a combination of the first transportation mode and the second transportation mode. The systems, methods, and programs search for the recommended route for transfer with switching between the plurality of transportation modes on the basis of the link information, the connection information, and the set condition, the recommended route connecting links for transfer by different transportation modes.

Abstract: Movement guidance information for performing traveling guidance for a vehicle is requested to a guidance information delivering server device based on an area update table and an area identification table for managing an update state of map information in a communication terminal, and traveling guidance for the vehicle is performed based on the movement guidance information delivered from the guidance information delivering server device in response to the request.

Abstract: A route information transmission system, method and medium that acquire information for transferring a first travel route, on which a terminal device provides guidance, to an in-vehicle device as a second travel route on the basis of information pertaining to the first travel route, and transmit the acquired information.

Abstract: There is provided an in-vehicle device, which is mounted in a vehicle, that receives, from a center device, a traveling route of the vehicle searched for by the center device in response to a request from the in-vehicle device and guides regarding the received traveling route of the vehicle, the in-vehicle device including a calculation unit that calculates a response waiting time during which the in-vehicle device is able to wait from the request until the guidance regarding the traveling route of the vehicle, a determination unit that determines whether to update the traveling route of the vehicle based on the response waiting time calculated by the calculation unit and an update unit that updates the traveling route of the vehicle based on a determination result of the determination unit.

Abstract: A takeover information transmission system includes a takeover information acquisition unit that acquires takeover information for transferring a first travel route, on which a terminal device provides guidance, to an in-vehicle device as a second travel route on the basis of information pertaining to the first travel route, and a takeover information transmission unit that transmits the takeover information acquired by the takeover information acquisition unit to the in-vehicle device.

Abstract: Route search systems, methods, and programs search for a recommended route using a cost value of a link or a node that constitutes a route. The systems, methods, and programs calculate the cost value of the link or the node on the basis of calculation material information that serves as a material for calculating the cost value, and specify a reliability degree of the calculated cost value of the link or the node on the basis of a number of pieces of the calculation material information used to calculate the cost value of the link or the node. The systems, methods, and programs correct the cost value of the link or the node, the reliability degree of which has been specified, on the basis of the specified reliability degree, and search for the recommended route using the corrected cost value.

Abstract: Guidance systems, methods, and programs acquire, from a map information providing device, update information for updating map information that is stored in guidance memory, and update, on the basis of the acquired update information, the stored map information. The systems, methods, and programs acquire, from the map information providing device, temporarily delivered information that is used for guidance until the update is complete. The temporarily delivered information has an identical data structure to the stored map information and is replaceable with the stored map information. Until the update is complete, the systems, methods, and programs provide guidance on the basis of the acquired temporarily delivered information. After the update is compete, however, the systems, methods, and programs provide guidance on the basis of the updated map information.

Abstract: Route search systems, methods, and programs search for a recommended route for transfer with switching between a plurality of transportation modes. The systems, methods, and programs acquire link information for specifying a link for transfer by each of the plurality of transportation modes and connection information related to connection between links for transfer by different transportation modes, and set a condition for switching from a first transportation mode to a second transportation mode, which is different from the first transportation mode, on the basis of a combination of the first transportation mode and the second transportation mode. The systems, methods, and programs search for the recommended route for transfer with switching between the plurality of transportation modes on the basis of the link information, the connection information, and the set condition, the recommended route connecting links for transfer by different transportation modes.

Abstract: Route calculation systems, methods, and programs extract from stored past routes, past routes that at least partly pass through a departure point area and at least partly pass through a destination area, and calculate, for each extracted past route, a new departure point side section route and a new destination side section route. The systems, methods, and programs calculate, for each extracted past route, a new candidate route that sequentially passes through the calculated new departure point side section route, a past section route, and the calculated new destination side section route. The systems, methods, and programs compute a cost of each calculated new candidate route and set the new route as the new candidate route having the smallest computed cost.

Abstract: Route setting systems, methods, and programs set a guide route from a departure location to a destination location, display the set guide route on a display superimposed on a map image, receive an operation by a user designating a location on the displayed map image, acquire a road status of a road in the vicinity of the designated location, and select a pass-through road on the basis of the acquired road status. The pass-through road is a road by which the guide route will pass from the road in the vicinity of the designated location. The systems methods, and programs change the set guide route to a route that leads from the departure location to the destination location by way of the selected pass-through road.

Abstract: Navigation devices, methods, and programs acquire a departure point and a destination, accept a designation of a passing area, and determine a departure-point-side border point on a departure point side and a destination-side border point on a destination side in the designated passing area. The devices, methods, and programs calculate, as a travel route from the departure point to the destination through the passing area: (i) a departure-point-side travel route from the departure point to the departure-point-side border point; (ii) a passing area travel route from the departure-point-side border point to the destination-side border point; and (iii) a destination-side travel route from the destination-side border point to the destination.

Abstract: A takeover information transmission system includes a takeover information acquisition unit that acquires takeover information for transferring a first travel route, on which a terminal device provides guidance, to an in-vehicle device as a second travel route on the basis of information pertaining to the first travel route, and a takeover information transmission unit that transmits the takeover information acquired by the takeover information acquisition unit to the in-vehicle device.

Abstract: Navigation systems, methods, and programs output on an output device information on a set normal travel route when a guidance route for providing guidance to a user is not set. The systems, methods, and programs set a reference route satisfying a predetermined first setting condition as the normal travel route, and when the user travels along a temporary route that shares a start point and an end point with the reference route and is different from the reference route, specify a temporary travel factor that is a factor in which the user travels along the temporary route. The systems, methods, and programs set a second setting condition that varies depending on a content of the specified temporary travel factor, and change the normal travel route from the reference route to the temporary route, based on the second setting condition.

Abstract: Route setting systems, methods, and programs set a guide route from a departure location to a destination location, display the set guide route on a display superimposed on a map image, receive an operation by a user designating a location on the displayed map image, acquire a road status of a road in the vicinity of the designated location, and select a pass-through road on the basis of the acquired road status. The pass-through road is a road by which the guide route will pass from the road in the vicinity of the designated location. The systems methods, and programs change the set guide route to a route that leads from the departure location to the destination location by way of the selected pass-through road.

Abstract: Route calculation systems, methods, and programs extract from stored past routes, past routes that at least partly pass through a departure point area and at least partly pass through a destination area, and calculate, for each extracted past route, a new departure point side section route and a new destination side section route. The systems, methods, and programs calculate, for each extracted past route, a new candidate route that sequentially passes through the calculated new departure point side section route, a past section route, and the calculated new destination side section route. The systems, methods, and programs compute a cost of each calculated new candidate route and set the new route as the new candidate route having the smallest computed cost.

Abstract: Navigation devices, methods, and programs acquire a departure point and a destination, accept a designation of a passing area, and determine a departure-point-side border point on a departure point side and a destination-side border point on a destination side in the designated passing area. The devices, methods, and programs calculate, as a travel route from the departure point to the destination through the passing area: (i) a departure-point-side travel route from the departure point to the departure-point-side border point; (ii) a passing area travel route from the departure-point-side border point to the destination-side border point; and (iii) a destination-side travel route from the destination-side border point to the destination.