Toyota Jidosha Kabushiki Kaisha

Aisin Aw Co., Ltd.

Zenrin Co., Ltd.

Tomohiko Masutani

Motohiro Nakamura

Kazuteru Maekawa

Tomoki Kodan

Atsushi Ikeno

Sadahiro Koshiba

Hiroyuki Tashiro

Yoshitaka Kato

Koichi Ushida

Yukiko Hiroo

Yoichi Mori

Tomoko Arita

A route search apparatus configured to search a route from a set place of departure to a set destination comprises network data that includes nodes and links representing a road network, an average cost value indicating an average of travel time of each of the links, and a variance value indicating a degree of variance of the travel time, and a route searcher configured to determine the route from the place of departure to the destination as a recommended route, based on the average cost value, the variance value and a weight coefficient of the variance value.

Route search apparatus, route search method and computer-readable storage medium storing program

A route search apparatus comprises a road information storage part configured to store road information including link information comprised of single link information and composite link information; and a route searcher configured to search a recommended route between two different points using the link information. The single link information includes information regarding an approach link that is a link approaching to a node at one end of a target link, an exit link that is a link exiting from a node at the other end of the target link, and a cost of the target link for entering from the approach link and exiting to the exit link. The composite link information includes information regarding an approach link that is a link approaching to a node at one end of a target link array, an exit link that is a link exiting from a node at the other end of the target link array, and a cost of the target link array for entering from the approach link and exiting to the exit link.

Route search apparatus, route search method, computer readable storage medium storing a program and data structure

There is provided a method of collecting probe information generated during travel of a vehicle, comprising: (a) receiving probe information including travel time information of a reference area, from a vehicle traveling a reference area that includes at least one of an intersection area that is an area from an approach to an intersection to an exit from the intersection and a road area that connects with the intersection area and is an area from the exit of the intersection to an approach of another intersection adjacent to the intersection in an exit direction; and (b) storing the received probe information.

Method of collecting probe information, computer-readable recording media and travel time calculation apparatus

Route search apparatus, route search method, computer program and data structure

Growing community of inventors

Kitakyushu, Japan

Tomohiko Masutani