Effect of real-time information upon traffic flows on crossing roads |
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Authors: | Minoru Fukui Katsuhiro Nishinari Yoshihiro Ishibashi |
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Institution: | a Nakanihon Automotive College, Sakahogi-cho, Gifu-ken 505-0077, Japan b Department of Aeronautics and Astronautics, Faculty of Engineering, The University of Tokyo, Tokyo, 113-8656, Japan c Japan Automobile Research Institute, Karima, Tsukuba, Ibaraki, 305-0822, Japan d School of Business, Aichi Shukutoku University, Nagakute-cho, Aichi-ken 480-1197, Japan |
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Abstract: | The effect of real-time information on the traffic flows of the crossing roads is studied by simulations based on a cellular automaton model. At the intersection, drivers have to enter a road of a shorter trip-time, by making a turn if necessary, as indicated on the information board. Dynamics of the traffic are expressed as a return map in the density-flow space. The traffic flow is classified into six phases, as a function of the car density. It is found that such a behavior of drivers induces too much concentration of cars on one road and, as a result, causes oscillation of the flow and the density of cars on both roads. The oscillation usually results in a reduced total flow, except for the cases of high car density. |
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Keywords: | 89 40 -a 45 70 Vn 05 70 Fh 82 40 Bj |
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