| Project/Area Number |
21K14377
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| Research Category |
Grant-in-Aid for Early-Career Scientists
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| Allocation Type | Multi-year Fund |
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| Review Section |
Basic Section 25020:Safety engineering-related
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| Research Institution | The University of Tokyo |
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Principal Investigator |
JIA XIAOLU 東京大学, 大学院工学系研究科(工学部), 特任助教 (90898842)
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| Project Period (FY) |
2021-04-01 – 2024-03-31
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| Project Status |
Completed (Fiscal Year 2023)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2022: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
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| Keywords | pedestrian management / crowd dynamics / pedestrian flow / obstacle layout / pedestrian egress / pedestrian evacuation / pedestrian / obstacle / egress / crowd / obstacle bottleneck / fundamental diagram |
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| Outline of Research at the Start |
Although it is inevitable to place obstacles when designing walking facilities, the influencing mechanism of the obstacle on the pedestrian egress remains unclear, making the scientific evidence and standards for the design of the obstacle insufficient. In this proposal, field experiments will be conducted to thoroughly explore the mechanism from the perspectives of egress efficiency and congestion level. Results are expected to help with the improvement of pedestrian management to build more efficient and safer public areas.
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| Outline of Final Research Achievements |
Due to the inevitability of placing obstacles when designing walking facilities, it is important to understand the influence of the obstacle on pedestrian egress, i.e. the process for the pedestrians to leave from a certain area. However, the influencing mechanism of the obstacle on the pedestrian egress was unclear, making the scientific evidence and standards for the design of the obstacle insufficient. In this proposal, I elucidate this problem by both field experiments and simulation. On one hand, field experiments showed the influence of the obstacle on egress efficiency relies on the self-organization behavior of pedestrians. On the other hand, numerical simulation results gave a generalized result on the phase transition of the three possible influences, i.e., improved, balanced, decreased, of the obstacle on the egress efficiency.
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| Academic Significance and Societal Importance of the Research Achievements |
This research shifts the research trend from the prioritized positive to a thorough analysis of the obstacle’s influencing mechanism. It also contributes to actual pedestrian management by providing scientific evidence for obstacle layout design and pedestrian guidance to eliminate congestion.
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