InterJournal Complex Systems, 890
Status: Accepted
Manuscript Number: [890]
Submission Date: 2004
Effective Information Sharing based on Mass User Support for Reduction of Traffic Congestion
Author(s): Tomohisa Yamashita ,Koichi Kurumatani ,Kiyoshi Izumi

Subject(s): CX.6



Control of traffic flow is one of important research areas for complex systems because an interdependence of individual route choice behaviors has a dramatic effect on the performance of the whole system. Although personal information support systems have been developed for maximizing the utility of individual users by providing the route with the shortest travel time, they often cause traffic congestion, and then decrease the system performance. The reason for this is that drivers following these support systems choose a recommended route simultaneously and concentrate this route. In this research, our aim is the increase of both individual utility and social welfare in road transportation systems by reducing traffic congestion. For this purpose, based on the concept of mass user support, we propose a route choice mechanism that makes a mutual concession among users autonomously. In our proposed mechanism, drivers notify their routes to information server, and then information server provides accumulative route information to the drivers notifying their route. In order to examine the effect of our proposed mechanism in some map structures, we apply multiagent simulation on our traffic flow model. As a result of simulation, we confirm that our proposed mechanism has an effect on the reduction of traffic congestion and the increase of both individual utility and social welfare.

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