| Project/Area Number |
26540037
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Information network
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| Research Institution | Osaka University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
UMEDU Takaaki 滋賀大学, 経済学部, 准教授 (10346174)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | ITS / プローブカー情報 / ＯＤ交通量 / OD交通量 / プローブカーデータ / 渋滞長 / OD行列 / 車両モビリティ / プライバシー保護 |
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| Outline of Final Research Achievements |
In this study, we have designed and developed methods for (i) identifying congested road segments, (ii) estimating required time to the destinations, and (iii) estimating the traffic volume of each pair of a departure and a destination (OD traffic volume) where we focus on the realization of typical traffic information services and develop the methods by suppressing the storage capacity of the servers to a certain amount and creating methods. Then, we have built a mathematical model for estimating the lengths of vehicular queues at intersections, chopped up floating car data for preserving the privacy of users, and developed methods to estimate the queue length of each signal and its variation from a small number of fragmented floating car data and to estimate OD traffic volumes with high accuracy.
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