| Project/Area Number |
25820247
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Civil engineering project/Traffic engineering
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| Research Institution | Tokyo University of Science |
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Principal Investigator |
KASAI Makoto 東京理科大学, 理工学部, 助教 (20579792)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | 交通流 / 交通容量 / 容量上の隘路現象 / 交換相互作用 / ドライビングシミュレータ / 追従積重ね試験 / 階層ベイズ / 単路部ボトルネック / 臨界現象 |
|---|
| Outline of Final Research Achievements |
This study discusses an effect of "atmosphere" shared with neighboring drivers in traffic flow to model and mitigate bottleneck phenomena in access-controlled section. First, traffic flow is modeled as exchange interaction in time headway instead of modeling car-following behavior based on homogenous traffic flow data collected by a driving simulator. Second, Hierarchical Bayesian Estimation is applied to estimation of robustness of exchange interaction in time headway. Markov Chain Monte Carlo methods and Type-II maximum likelihood estimation method are implemented for the estimation. As a result, the interaction in time headways in chronological order dominates in other interactions such as those of successive cars. Finally, a measure for improvement of discharge flow rate is tested. In the experiment, an effect of acceleration of neighboring cars is measured by a driving simulator. Some drivers steadily follow the leader in case of high acceleration rate of neighboring cars.
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