Abstract
Traffic congestion causes terrible social and economic costs on our society. To reduce traffic congestion, several approaches have already been used.
Among them, Vehicle Information and Communication System (VICS), which provides traffic information such as congestions and restrictions, is now widely and successfully used in Japan.
VICS gathers traffic information for a traffic information center, processes the gathered information, and transmits it toward vehicles.
Two major difficulties about VICS, however, are reported.
One is the necessity of a huge amount of investment on infrastructures such as a traffic information center.
The other is a time lag between the observation of road conditions by VICS and their utilization by each driver.
To resolve these difficulties, several studies discussed the potential ability of wireless communication between vehicles, usually referred to as Inter-Vehicle Communication (IVC).
In this paper, we propose a route guidance method based on traffic information sharing through IVC.
Experimental results show the effectiveness of the proposed method.
