| Project/Area Number |
12650065
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Engineering fundamentals
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| Research Institution | Tsu City College of Mie |
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Principal Investigator |
SUGIYAMA Yuki city college of Mie, Pep of Lite Science, Proffesor, 生活化学科, 教授 (20196778)
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| Co-Investigator(Kenkyū-buntansha) |
TADAKI Shin-ichi Saga University, Center of Research and Information, Proffesor, 学術情報センター, 教授 (00202169)
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| Project Period (FY) |
2000 – 2001
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| Project Status |
Completed (Fiscal Year 2001)
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| Budget Amount *help |
¥3,300,000 (Direct Cost: ¥3,300,000)
Fiscal Year 2001: ¥1,700,000 (Direct Cost: ¥1,700,000)
Fiscal Year 2000: ¥1,600,000 (Direct Cost: ¥1,600,000)
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| Keywords | traffic flow / complex system / pattern formation / phase transition / bifurcation / nonlinear model / computer simulation / data base / 非線型方程式 / コンピューターシミュレーション / ソリトン / 動力学模型 / シミュレーション |
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| Research Abstract |
We present new non-linear dynamical model for traffic flow, which is called Optimal Velocity Model (0V moel). The model well reproduces the dynamical formation of jam cluster and the phenomenon can be understood as the phasetransition in collective motion of vehicles.
In this project, Coupled Map 0V model (CMOV model) is formulated on the purposeof simulating 2-lane traffic flow on freeway in the existence of bottle-neck, such as on-ramp and tunnel. We have collected a mass of obsevational data of freeway traffic and construct the database with the tool software for the analysis of the data. Through this project, the mathematical property of jamming transition is understood related to the soliton solutions of integrable systems. And the simulator is developed in coorporate with the results of the analysis of real data. The microscopic behavior of two-lane traffic is observed, which phenomenon is so called synchronized flow, and some other complex behaviors are discovered. The results of simulations using CMOV model on 2-lane roads, are in good agreement of the observational data in this stage. We analize the space time structure of jam, such as the evolution and disappearance of jam cluster.
Moreover, we present a theory for control of freeway traffic base on 0V model introducing the effect of looking at the car that follows, which is an aim to Intelligent Transport Systems. 0V model can be used as the model for social dynamical systems such as pedestrians and evacuation dynamics, and for other cooperative transport dynamical systems. On this concept 0V model is extended to 2-dimensional model and apllied for the analysis of granular4flow in liquid through pipe or pedstrians through passage.
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