Congestion degree how to create, congestion degree creating apparatus

摘要

PROBLEM TO BE SOLVED: To provide a traffic information creation system and a traffic information creation device for creating precise traffic information by removing the reduction of a speed due to any factor other than the congestion such as a traffic light or the like.;SOLUTION: This traffic information creation method for creating the traffic information of a road on which a vehicle 2 travels is provided with: a speed detection step (S1) for detecting a speed at certain distances and intervals by a speed sensor 11 and congestion level detection steps (S1 to S3) for referring to a specific speed, specific mileage and connection decision mileage predetermined in association with a congestion level showing the level of congestion, and for detecting the congestion level corresponding to the speed.;COPYRIGHT: (C)2008,JPO&INPIT