| Budget Amount *help |
¥17,160,000 (Direct Cost: ¥13,200,000、Indirect Cost: ¥3,960,000)
Fiscal Year 2017: ¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2016: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2015: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
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| Outline of Final Research Achievements |
This study explores the empirical properties of Macroscopic Fundamental Diagrams(MFD) linking vehicle accumulation and traffic production in road networks, and then develops traffic control methods exploiting the properties of MFDs and a theory to explain them. More specifically, (1) by analyzing long term detectors data (traffic flow-speed data observed every 1-minute throughout one year) of Japanese major cities, we revealed the basic properties of MFDs, and characterized the conditions for emergence of a well-defined MFD;(2) we developed a theory (mathematical models) to explain the mechanisms for the empirically observed properties of MFDs and the relationships between congestion patterns and MFD features;(3)we developed traffic control methods (signal control and ramp metering strategies) to improve performance (throughput) of congested networks based on the theory developed in (2).
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