Co-design of traffic network topology and control measures |
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Institution: | 1. School of Systems Information Science, Future University Hakodate, 116-2, Kameda Nakano-Cho, Hakodate, Hokkaido 041-8655 Japan;2. School of Computer and Information Engineering, Chuzhou University, Chuzhou 239000,\nPR China;3. School of Computer Science and Technology, Tianjin University, Tianjin 300072, PR China;4. Department of Electronics and Information, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy;5. GITS, Waseda University, Tokyo 169-0051, Japan;6. RIEC, Tohoku University, Sendai-shi 980-8579, Japan |
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Abstract: | The two main directions to improve traffic flows in networks involve changing the network topology and introducing new traffic control measures. In this paper, we consider a co-design approach to apply these two methods jointly to improve the interaction between different methods and to get a better overall performance. We aim at finding the optimal network topology and the optimal parameters of traffic control laws at the same time by solving a co-optimization problem. However, such an optimization problem is usually highly non-linear and non-convex, and it possibly involves a mixed-integer form. Therefore, we discuss four different solution frameworks that can be used for solving the co-optimization problem, according to different requirements on the computational complexity and speed. A simulation-based study is implemented on the Singapore freeway network to illustrate the co-design approach and to compare the four different solution frameworks. |
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Keywords: | Network topology design Dynamic traffic control Co-design |
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