Patent ID: 8515665

Claim:
An on-board vehicle navigation device comprising: a current position information acquisition unit that acquires current position information relating to a current position of a host vehicle; a signal information acquisition unit that acquires signal position information relating to positions where plural signals are respectively installed and signal indication information, including a relationship between indications of a signal and time, for determining indication of each signal, each signal changing indications in a timed sequence; a target signal setting unit that sets a specific signal as a target signal based on the signal position information; a route search unit that searches to determine a plurality of routes from the current position to the set target signal based on the current position information and the signal position information; signal indication determination unit that calculates a required travel time for each of the determined plurality of routes and that determines the indication of the target signal at arrival times the vehicle would arrive at the target signal by travel of each of the determined plurality of routes, based on the calculated required travel time for each route of the plurality of routes and the signal indication information; and an announcement unit that notifies a driver of the host vehicle of the indication of the target signal determined by the signal indication determination unit for each of the plurality of routes, the indications of the target signal and arrival times at the target signal differing among the plurality of routes; and wherein the announcement unit displays one route from among the plurality of routes as a candidate route with the determined indication of the target signal at the arrival time for travel of the one route on a map display showing each of a plurality of routes.