A Study on Traffic Information Sharing Through Inter-Vehicle Communication

We propose a route guidance method for guiding automobiles in road traffic systems, which is based on traffic information sharing through inter-vehicle communication (IVC). The proposed method does not require a centralized traffic information system. That is, a huge infrastructure is not required in the proposed method. Each driver, however, can utilize the latest traffic information using IVC. Through computational experiments, we show that good results are obtained from traffic information sharing when the percentage of drivers with the proposed method is low. When the percentage of such drivers is high, good results are not obtained because the same traffic information is shared by many drivers. In this case, many drivers tend to choose the same route, which degrades the overall traffic flow.