Traffic Signal Control of a Road Network Using MILP in the MPC Framework
| Autor: | Kazuyuki Aihara, M.A.S. Kamal, Akira Ohata, Jun-ichi Imura, Tomohisa Hayakawa |
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| Rok vydání: | 2014 |
| Předmět: |
Engineering
Offset (computer science) business.industry General Neuroscience Applied Mathematics Aerospace Engineering Traffic simulation Poison control Control engineering Computer Science Applications Network traffic simulation Model predictive control Traffic signal Control and Systems Engineering Control theory Automotive Engineering business Integer programming Traffic generation model Software Information Systems |
| Zdroj: | International Journal of Intelligent Transportation Systems Research. 13:107-118 |
| ISSN: | 1868-8659 1348-8503 |
| Popis: | This paper investigates the significance of a traffic signal control scheme that simultaneously adjusts all signal parameters, i.e., cycle time, split time and offset, in a road network. A novel framework of model predictive control (MPC) is designed that overcomes the limitations of other MPC based traffic signal control strategies, which are mostly restricted to control only split or green time in a fixed cycle ignoring signal offset. A simple macroscopic model of traffic tailored to MPC is formulated that describes traffic dynamics in the network at a short sampling interval. The proposed framework is demonstrated using a small road network with dynamically changing traffic flows. The parameters of the proposed model are calibrated by using data obtained from detailed microscopic simulation that yields realistic statistics. The model is transformed into a mixed logical dynamical system that is suitable to a finite horizon, and traffic signals are optimized using mixed integer linear programming (MILP) for a given performance index. The framework makes the signals flexibly turn to red and green by adapting quickly to any changes in traffic conditions. Results are also verified by microscopic traffic simulation and compared with other signal control schemes. |
| Databáze: | OpenAIRE |
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