Abstract
VICS (Vehicle Information and Communication System) Center started traffic information service in 1996, now VICS receiver units are mounted on the navigation systems more than 80%, and 4 million units are shipped annually. And in April 2015, VICS Center added a new service “VICS WIDE”. VICS WIDE service provides advanced traffic information that is aimed for more useful DRGS (Dynamic Route Guidance System). We anticipate that this new service will make a convenience of road traffic in the future. Since last year, we have started the study for estimation of the social benefits and economic effects expected by the spread of VICS WIDE service by using the traffic simulator with near-reality road network data and traffic demand data. As a result, the VICS WIDE service got a prospect of reducing the economic cost of traffic congestion by about 10%.
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