Patent ID: 6915207

Claim:
A method for setting a travel time, comprising the steps of: receiving a position detection signal transmitted from a travelling vehicle to detect a position of the vehicle; sensing whether or not the vehicle passes a starting node of a required link on a road network for storage of a passing time when the vehicle passes the starting node; sensing whether or not the vehicle passes an end node of the required link on the road network for storage of a passing time when the vehicle passes the end node; calculating a travel time for the link from the passing times at the starting node and the end node of the link, wherein said step of calculating the travel time is performed during at least one pre-set time slot and, in said step of calculating the travel time, the travel time is calculated by averaging a plurality of data representing the travel times of the vehicles detected within the at least one pre-set time slot; and calculating a travel time in the link from road data and a set speed instead of the travel time measured when the number of data representing the travel times of the vehicles detected within the at least one pre-set time slot is lower than a specified number set in advance.