Research on Pedestrian Flow through Bottlenecks: Unified Analysis on Egress, Inflow, and Queueing Processes

• Project/Area Number: 23K21019
• Project/Area Number (Other): 21H01570 (2021-2023)
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Multi-year Fund (2024); Single-year Grants (2021-2023)
• Section: 一般
• Review Section: Basic Section 25020:Safety engineering-related
• Research Institution: The University of Tokyo
• Principal Investigator: 柳澤 大地 東京大学, 大学院工学系研究科(工学部), 准教授 (70611292)
• Project Period (FY): 2024-04-01 – 2026-03-31
• Project Status: Granted (Fiscal Year 2024)
• Budget Amount: ¥17,030,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥3,930,000); Fiscal Year 2025: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2024: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2023: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000); Fiscal Year 2022: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000); Fiscal Year 2021: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
• Keywords: 群集 / ボトルネック / 退出 / 流入 / 待ち行列

Outline of Research at the Start

本研究では、ボトルネックに関するの五つのテーマ (1) ボトルネック背後の部屋の大きさの影響、(2) ボトルネック前の経路の影響、(3) 通過するボトルネックと引き返すボトルネックの違い、(4) ボトルネックの数の影響、(5) ボトルネック手前の構造や障害物・残る人などの位置の影響について研究を行い、最終的に五つを統一的に扱うことができるモデルを作成する。そして、総退出時間や待ち時間・サービス窓口の利用率などをすぐに見積もることができる理論式を導出する。またモデルを解析したりシミュレーションを行ったりすることにより、群集の流れをスムーズにするボトルネック周辺の構造を提案する。

Outline of Annual Research Achievements

当該年度は、群集流動におけるボトルネック現象の発生メカニズムとその制御手法の確立を目的とし、イベント会場からの帰宅行動や航空機搭乗など、信号や狭い通路といったボトルネックを含む群集運動について研究を行った。
一つ目は、東京ドームにおけるイベント終了後の観客帰宅行動に関するシミュレーションである。セルオートマトン・フロアフィールドモデルを用い、観客が水道橋駅方面へ向かう際の赤信号時間が歩行者密度と混雑度に与える影響を解析した。信号制御を活用することで局所的な混雑を回避できることが示され、観客誘導や規制退場の有効性が定量的に検証された。また、コンサートとスポーツイベントという性質の異なるイベントにおいて、退出タイミングにばらつきが生じることを考慮することで、より現実的な人流再現が可能となることも分かった。
二つ目は、Blended Wing Body 型航空機（BWB 機）における効率的な搭乗戦略に関する研究である。BWB 機は従来の細長い機体とは異なり、幅広で複数の通路を有する特殊なキャビン構造を持つ。本研究では、セルオートマトンによる搭乗シミュレーションモデルを構築し、既存の「ランダム搭乗」や「窓側⇒通路側搭乗」戦略に加え、新たに考案した「N-Aisles Steffen」法のシミュレーションを実施した。この戦略では、乗客は複数のグループに分割され、通路入口の干渉を最小化するよう搭乗順が調整される。また、手荷物量、搭乗率、遵守率といった要素を変化させた感度分析により、提案手法の柔軟性と現実適用性が調べられた。
これらの成果は、異なる空間スケールにおける群集流動問題に対して、共通のモデル基盤から制御戦略を導出する新たな枠組みを提示するものであり、今後の都市設計や次世代輸送システム設計への応用が期待される。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

イベント会場からの帰宅行動や航空機搭乗という具体的な群集ボトルネック流れの研究を実施することができた。
従って、本研究はおおむね順調に進展していると考えられる。

Strategy for Future Research Activity

大都市の駅で重要な改札付近の人流について研究を進める計画である。IC カードが導入された現在においても、タッチのために減速が必要であり通る場所が限定される改札は駅のボトルネックである。
自動改札機のコントロールパラメータとしては、設置場所以外に移動方向の可否がある。単方向の自動改札機では、ホームに向かう人とホームから出る人のどちらかしか通ることができない。一方、双方向の自動改札機では、通常どちらの移動方向も受け付けており、片方の方向からの人が通過すると、もう片方からの人の移動をしばらく受け付けない。双方向の方が臨機応変な対応が可能なようにも思われるが、両方の方向からほぼ同時に人が到着すると、遅かった方の人は立往生になってしまうという問題がある。そこで、状況に応じた単方向・双方向の適切な数・配置を調査する。
2024 年度も取り組んだ航空機の研究は、搭乗と避難の同時最適化を目的とした研究を実施予定である。さらにこれまでの群集のボトルネック流れの成果を活かし、自己駆動粒子が合流・分流する流れや複数の交通機関の乗り継ぎ・ネットワークの研究、ドローンを使った配送や倉庫を移動するロボットにおけるボトルネックの研究、スポーツの練習会場やレースにおける混雑に着目した研究、新しい混雑指標の提案も考えている。これらの成果は逆に群集のボトルネック流れの進展にも大きく寄与すると考えられる。

Research Products

• [Journal Article] Boarding strategies accounting for properties of the blended wing body aircraft (2025)
  • Author(s): Dong Yuming、Jia Xiaolu、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Physica A: Statistical Mechanics and its Applications Volume: 658 Pages: 130298-130298
  • DOI: 10.1016/j.physa.2024.130298
  • Peer Reviewed
• [Journal Article] Evaluating Pedestrian Congestion Based on Missing Sensing Data (2024)
  • Author(s): Jia Xiaolu、Feliciani Claudio、Tanida Sakurako、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Journal of Disaster Research Volume: 19 Issue: 2 Pages: 336-346
  • DOI: 10.20965/jdr.2024.p0336
  • ISSN: 1881-2473, 1883-8030
  • Year and Date: 2024-04-01
  • Peer Reviewed / Open Access
• [Journal Article] Modeling and Questionnaire Survey for Effective Regulated Egress Based on Level of Discomfort (2024)
  • Author(s): Miyagawa Riku、Yanagisawa Daichi、Jia Xiaolu、Shoji Yasushi、Aikoh Tetsuya、Nishinari Katsuhiro
  • Journal Title: Journal of Disaster Research Volume: 19 Issue: 2 Pages: 279-292
  • DOI: 10.20965/jdr.2024.p0279
  • ISSN: 1881-2473, 1883-8030
  • Year and Date: 2024-04-01
  • Peer Reviewed / Open Access
• [Journal Article] 東京ドームからの帰宅シミュレーション (2024)
  • Author(s): 浦田桂一郎, 柳澤大地, 西成活裕
  • Journal Title: 交通流と自己駆動粒子系シンポジウム論文集 Volume: 30
  • Peer Reviewed / Open Access
• [Journal Article] Jam-Absorption Driving with Data Assimilation (2024)
  • Author(s): Li Siyu、Nishi Ryosuke、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: 2024 IEEE International Conference on Systems, Man, and Cybernetics 2024 (IEEE SMC 2024) Volume: - Pages: 2638-2643
  • DOI: 10.1109/smc54092.2024.10831094
  • Peer Reviewed
• [Journal Article] A jam-absorption driving system for reducing multiple moving jams by estimating moving jam propagation (2024)
  • Author(s): Li Siyu、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Transportation Research Part C: Emerging Technologies Volume: 158 Pages: 104394-104394
  • DOI: 10.1016/j.trc.2023.104394
  • Peer Reviewed / Open Access
• [Journal Article] Effects of topological structure and destination selection strategies on agent dynamics in complex networks (2024)
  • Author(s): Tsuzuki Satori、Yanagisawa Daichi、Itoh Eri、Nishinari Katsuhiro
  • Journal Title: Journal of Physics: Complexity Volume: 5 Issue: 1 Pages: 015013-015013
  • DOI: 10.1088/2632-072x/ad2971
  • Peer Reviewed / Open Access
• [Journal Article] Learning from experimental data to simulate pedestrian dynamics (2023)
  • Author(s): Cui Geng、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Physica A: Statistical Mechanics and its Applications Volume: 623 Pages: 128837-128837
  • DOI: 10.1016/j.physa.2023.128837
  • Peer Reviewed
• [Journal Article] Metastability due to a branching-merging structure in a simple network of an exclusion process (2023)
  • Author(s): Yamamoto Hiroki、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Physical Review E Volume: 108 Issue: 4 Pages: 044121-044121
  • DOI: 10.1103/physreve.108.044121
  • Peer Reviewed
• [Journal Article] Effective regulated egress at large event venues (2023)
  • Author(s): Miyagawa Riku、Yanagisawa Daichi、Jia Xiaolu、Nishinari Katsuhiro
  • Journal Title: JSIAM Letters Volume: 15 Issue: 0 Pages: 113-116
  • DOI: 10.14495/jsiaml.15.113
  • ISSN: 1883-0609, 1883-0617
  • Peer Reviewed / Open Access
• [Journal Article] Modeling and controlling congestion caused by a bottleneck in an overcrowded aquarium (2023)
  • Author(s): Kawaguchi Riho、Yanagisawa Daichi、Feliciani Claudio、Nozaki Shigeto、Abe Yukari、Mita Makiko、Nishinari Katsuhiro
  • Journal Title: Physica A: Statistical Mechanics and its Applications Volume: 615 Pages: 128547-128547
  • DOI: 10.1016/j.physa.2023.128547
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] 非マルコフ完全非対称単純排他過程の流量の近似式 (可積分系数理の諸相) (2023)
  • Author(s): 柳澤 大地
  • Journal Title: 数理解析研究所講究録別冊 Volume: B91 Pages: 1-11
  • Peer Reviewed / Open Access
• [Journal Article] Fuzzy cellular automata with complete number-conserving rule as traffic-flow models with bottleneck (2022)
  • Author(s): Nishida Yuki、Watanabe Sennosuke、Fukuda Akiko、Yanagisawa Daichi
  • Journal Title: JSIAM Letters Volume: 14 Issue: 0 Pages: 143-146
  • DOI: 10.14495/jsiaml.14.143
  • ISSN: 1883-0609, 1883-0617
  • Peer Reviewed / Open Access
• [Journal Article] Effect of congestion avoidance due to congestion information provision on optimizing agent dynamics on an endogenous star network topology (2022)
  • Author(s): Tsuzuki Satori、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Scientific Reports Volume: 12 Issue: 1 Pages: 22159-22159
  • DOI: 10.1038/s41598-022-26710-0
  • Peer Reviewed
• [Journal Article] Optimization of transition behaviors in a two-lane system (2022)
  • Author(s): Dong Yuming、Jia Xiaolu、Yanagisawa Daichi、Nagahama Akihito、Nishinari Katsuhiro
  • Journal Title: Physica A: Statistical Mechanics and its Applications Volume: 608 Pages: 128315-128315
  • DOI: 10.1016/j.physa.2022.128315
  • Peer Reviewed
• [Journal Article] Revisiting the level-of-service framework for pedestrian comfortability: Velocity depicts more accurate perceived congestion than local density (2022)
  • Author(s): Jia Xiaolu、Feliciani Claudio、Murakami Hisashi、Nagahama Akihito、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Transportation Research Part F: Traffic Psychology and Behaviour Volume: 87 Pages: 403-425
  • DOI: 10.1016/j.trf.2022.04.007
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A Data Driven Approach to Simulate Pedestrian Competitiveness Using the Social Force Model (2022)
  • Author(s): Cui Geng、Yanagisawa Daichi、Katsuhiro Nishinari
  • Journal Title: Collective Dynamics Volume: 6 Pages: 1-1
  • DOI: 10.17815/cd.2021.118
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Two-lane totally asymmetric simple exclusion process with extended Langmuir kinetics (2022)
  • Author(s): Yamamoto Hiroki、Ichiki Shingo、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Physical Review E Volume: 105 Issue: 1 Pages: 014128-014128
  • DOI: 10.1103/physreve.105.014128
  • Peer Reviewed
• [Journal Article] Optimising Pedestrian Flow Around Large Stadiums (2021)
  • Author(s): Dong Yuming、Jia Xiaolu、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Collective Dynamics Volume: 6 Pages: 1-18
  • DOI: 10.17815/cd.2021.117
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Pedestrian lane formation and its influence on egress efficiency in the presence of an obstacle (2021)
  • Author(s): Jia Xiaolu、Murakami Hisashi、Feliciani Claudio、Yanagisawa Daichi、Nishinari Katsuhiro
  • Journal Title: Safety Science Volume: 144 Pages: 105455-105455
  • DOI: 10.1016/j.ssci.2021.105455
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Incorporating genetic algorithm to optimise initial condition of pedestrian evacuation based on agent aggressiveness (2021)
  • Author(s): Geng Cui, Daichi Yanagisawa, and Katsuhiro Nishinari
  • Journal Title: Physica A Volume: 583 Pages: 126277-126277
  • DOI: 10.1016/j.physa.2021.126277
  • Peer Reviewed
• [Journal Article] Detecting aggressive agents in egress process by using conflict data in cellular automaton model (2021)
  • Author(s): Daichi Yanagisawa and Keisuke Yamazaki
  • Journal Title: Journal of Intelligent Transportation Systems Volume: 25 Issue: 6 Pages: 626-643
  • DOI: 10.1080/15472450.2021.1942869
  • Peer Reviewed
• [Presentation] Impact of Road Sign on Traffic Congestion during Road Repair: A Cellular Automaton Model Study (2024)
  • Author(s): Xi Lin, Akihito Nagahama, Daichi Yanagisawa
  • Organizer: Traffic and Granular Flow 2024 (TGF2024)
  • Int'l Joint Research
• [Presentation] Considering overtaking in the boarding of a blended wing body aircraft (2024)
  • Author(s): Yuming Dong, Xiaolu Jia, Daichi Yanagisawa, Katsuhiro Ninshinari
  • Organizer: Traffic and Granular Flow 2024 (TGF2024)
  • Int'l Joint Research
• [Presentation] Crowd Temperature: An approach to analysing crowd congestion dynamics (2024)
  • Author(s): Jiawei Zhang, Xiaolu Jia, Claudio Feliciani, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: Traffic and Granular Flow 2024 (TGF2024)
  • Int'l Joint Research
• [Presentation] Agent based modelling of blended wing body aircraft boarding strategies (2024)
  • Author(s): Yuming Dong, Xiaolu Jia, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: Conference in Emerging Technologies in Transportation Systems (TRC-30)
  • Int'l Joint Research
• [Presentation] 東京ドームからの帰宅シミュレーション (2024)
  • Author(s): 浦田桂一郎, 柳澤大地, 西成活裕
  • Organizer: 第30回交通流と自己駆動粒子系シンポジウム
• [Presentation] Characteristics of pedestrian flow at two-way ticket gates (2024)
  • Author(s): Xiaolu Jia, Daichi Yanagisawa, Claudio Feliciani, Sakurako Tanida, Katsuhiro Nishinari
  • Organizer: Traffic and Granular Flow 2024 (TGF2024)
  • Int'l Joint Research
• [Presentation] A jam-absorption driving system based on moving jam propagation estimation under partial roadside camera coverage (2024)
  • Author(s): Siyu Li, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: Traffic and Granular Flow 2024 (TGF2024)
  • Int'l Joint Research
• [Presentation] Jam-Absorption Driving with Data Assimilation (2024)
  • Author(s): Siyu Li, Ryosuke Nishi, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: IEEE International Conference on Systems, Man, and Cybernetics 2024 (IEEE SMC 2024)
  • Int'l Joint Research
• [Presentation] A jam-absorption driving system based on moving jam propagation estimation (2024)
  • Author(s): Siyu Li, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: Bridging Transportation Researchers 6 (BTR6)
  • Int'l Joint Research
• [Presentation] Data assimilation embedded jam-absorption driving for reducing freeway traffic jams caused by a sag (2024)
  • Author(s): Siyu Li, Ryosuke Nishi, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: Bridging Transportation Researchers 6 (BTR6)
  • Int'l Joint Research
• [Presentation] ラウンドアバウトにおける歩行者流のセルオートマトンモデル (2024)
  • Author(s): 草次優樹, JIA Xiaolu, 柳澤大地, 西成活裕
  • Organizer: 超異分野学会2024 東京・関東大会
• [Presentation] 交差のある航路における船舶最大流量 (2024)
  • Author(s): 澤樹鷹人, 柳澤大地, 西成活裕
  • Organizer: 超異分野学会2024 東京・関東大会
• [Presentation] Estimation of Pedestrian Origin-Destination Flow Based on Gravity Model (2023)
  • Author(s): Xiaolu Jia, Claudio Feliciani, Sakurako Tanida, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: 11 th International Conference on Pedestrian and Evacuation Dynamics (PED2023)
  • Int'l Joint Research
• [Presentation] A Novel Boarding Method for Blended Wing Body Passenger Aircrafts (2023)
  • Author(s): Yuming Dong, Xiaolu Jia, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: 11 th International Conference on Pedestrian and Evacuation Dynamics (PED2023)
  • Int'l Joint Research
• [Presentation] Fundamental Elements in the Development of Effective Crowd Control Strategies (2023)
  • Author(s): Claudio Feliciani, Katsuhiro Nishinari, Daichi Yanagisawa
  • Organizer: The 22nd World Congress of the International Federation of Automatic Control (IFAC World Congress 2023)
  • Int'l Joint Research / Invited
• [Presentation] Approximate theoretical analysis of non-Poissonian totally asymmetric simple exclusion process (2023)
  • Author(s): Daichi Yanagisawa, Takahiro Ezaki, Akiyasu Tomoeda, Katsuhiro Nishinari
  • Organizer: 28th International Conference on Statistical Physics (STATPHYS28)
  • Int'l Joint Research
• [Presentation] Numerical Simulation on the Necessity of Route Information when Estimating the Pedestrian Origin-Destination Flow (2023)
  • Author(s): Xiaolu Jia, Claudio Feliciani, Sakurako Tanida, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: 2023 IEEE the 8th International Conference on Intelligent Transportation Engineering (ICITE2023)
  • Int'l Joint Research
• [Presentation] Non-Poissonian cellular automaton models for vehicular traffic (2022)
  • Author(s): Daichi Yanagisawa, Takahiro Ezaki, Akiyasu Tomoeda, Katsuhiro Nishinari
  • Organizer: Traffic and Granular Flow 2022
  • Int'l Joint Research
• [Presentation] Modeling of pedestrian flow passing through the obstacle bottleneck - a mathematical approach (2022)
  • Author(s): Xiaolu Jia, Daichi Yanagisawa, Claudio Feliciani, Katsuhiro Nishinari
  • Organizer: 2022 11th International Conference on Transportation and Traffic Engineering (ICTTE 2022)
  • Int'l Joint Research
• [Presentation] Pedestrian behavior underlying the different shapes of the fundamental diagram (2022)
  • Author(s): Xiaolu Jia, Claudio Feliciani, Sakurako Tanida, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: Traffic and Granular Flow 2022
  • Int'l Joint Research
• [Presentation] Two types of bottlenecks in leisure facilities: bottlenecks caused by attractiveness and structure - A case study in a large-scale aquarium (2022)
  • Author(s): Riho Kawaguchi, Claudio Feliciani, Daichi Yanagisawa, Shigeto Nozaki, Yukari Abe, Makiko Mita, Katsuhiro Nishinari
  • Organizer: Traffic and Granular Flow 2022
  • Int'l Joint Research
• [Presentation] A jam-absorption driving system based on moving jam propagation speed estimation with camera sensors (2022)
  • Author(s): Siyu Li, Ryosuke Nishi, Daichi Yanagisawa, Katsuhiro Nishinari
  • Organizer: Traffic and Granular Flow 2022
  • Int'l Joint Research
• [Presentation] Controlling transition behaviors in a two-lane system with limited density information (2022)
  • Author(s): Yuming Dong, Xiaolu Jia, Daichi Yanagisawa, Akihito Nagahama, Katsuhiro Nishinari
  • Organizer: Traffic and Granular Flow 2022
  • Int'l Joint Research
• [Presentation] Analysis of congestion caused by a bottleneck in a crowded aquarium with a fixed one-way route (2022)
  • Author(s): Riho Kawaguchi, Claudio Feliciani, Daichi Yanagisawa, Shigeto Nozaki, Yukari Abe, Makiko Mita and Katsuhiro Nishinari
  • Organizer: The 15th International Conference and School “Cellular Automata for Research and Industry” (ACRI2022)
  • Int'l Joint Research
• [Presentation] 非マルコフ交通流セルオートマトンモデルの近似解析 (2022)
  • Author(s): 柳澤大地
  • Organizer: 公立鳥取環境大学応用数理研究交流会
  • Invited
• [Presentation] 重力モデルによる歩行者のOD交通量予測と測定誤差の影響 (2022)
  • Author(s): JIA XIAOLU, 柳澤大地, 谷田桜子, FELICIANI CLAUDIO, 西成活裕, 石黒裕樹
  • Organizer: 日本応用数理学会 2022 年度 年会
• [Presentation] 大規模イベント会場における規制退場の最適化 (2022)
  • Author(s): 宮川陸, 柳澤大地, 西成活裕
  • Organizer: 日本応用数理学会 2022 年度 年会
• [Presentation] 情報提供の遅れによる待ち時間の挙動の解析 (2022)
  • Author(s): 大庭帆貴, 柳澤大地, 西成活裕
  • Organizer: 日本応用数理学会 2022 年度 年会
• [Presentation] 交通流 CA モデルにおける危険性指標 (2022)
  • Author(s): 山本拓磨, 柳澤大地, 西成活裕
  • Organizer: 日本応用数理学会 第18回 研究部会連合発表会
• [Presentation] 確率セルオートマトンモデルによる群集流への合流と逆流の比較及び誘導の必要性の検討 (2022)
  • Author(s): 林志穂, Xiaolu Jia, 柳澤大地, 西成活裕
  • Organizer: 日本応用数理学会 第18回 研究部会連合発表会
• [Presentation] セルオートマトンを用いた飲食店利用客のエージェントシミュレーション (2022)
  • Author(s): 柳澤大地
  • Organizer: サービス学会 第10回 国内大会
• [Presentation] 遊園地の訪問客の満足度としての効用関数 (2022)
  • Author(s): 大庭帆貴, 柳澤大地, 西成活裕
  • Organizer: サービス学会 第10回 国内大会
• [Presentation] 吉野家のエージェントシミュレーション (2022)
  • Author(s): 柳澤 大地
  • Organizer: 超異分野学会 東京大会2022
• [Presentation] 大規模イベント会場における規制退場 (2022)
  • Author(s): 宮川陸, 柳澤大地, 西成活裕
  • Organizer: 超異分野学会 東京大会2022
• [Presentation] 改札機周辺の人流解析 (2022)
  • Author(s): 吉川航生, 柳澤大地, 西成活裕
  • Organizer: 超異分野学会 東京大会2022
• [Presentation] Effect of configuration of passengers on alighting time in train stations (2021)
  • Author(s): Naoya Fujiki, Daichi Yanagisawa, Akihiro Fujita, Claudio Feliciani, and Katsuhiro Nishinari
  • Organizer: Tenth International Conference on Pedestrian and Evacuation Dynamics (PED2021)
  • Int'l Joint Research
• [Presentation] Analysis and application of pedestrians' body-rotation (2021)
  • Author(s): Daichi Yanagisawa
  • Organizer: WORKSHOP ON PEDESTRIAN TRAFFIC AND EVACUATION DYNAMICS 2021
  • Int'l Joint Research / Invited
• [Presentation] Analysis of risk index in heterogeneous flow (2021)
  • Author(s): Takuma Yamamoto, Daichi Yanagisawa and Katsuhiro Nishinari
  • Organizer: Tenth International Conference on Pedestrian and Evacuation Dynamics (PED2021)
  • Int'l Joint Research
• [Presentation] Density-dependent pedestrian detour-route guidance (2021)
  • Author(s): Shiho Hayashi, Xiaolu Jia, Daichi Yanagisawa and Katsuhiro Nishinari
  • Organizer: Tenth International Conference on Pedestrian and Evacuation Dynamics (PED2021)
  • Int'l Joint Research
• [Presentation] Pedestrian aggressiveness simulation and social force model parameters optimisation using empirical trajectory (2021)
  • Author(s): Geng Cui, Daichi Yanagisawa and Katsuhiro Nishinari
  • Organizer: Tenth International Conference on Pedestrian and Evacuation Dynamics (PED2021)
  • Int'l Joint Research
• [Presentation] Optimizing Pedestrian Flows Around Large Stadiums (2021)
  • Author(s): Yuming Dong, Xiaolu Jia, Daichi Yanagisawa and Katsuhiro Nishinari
  • Organizer: Tenth International Conference on Pedestrian and Evacuation Dynamics (PED2021)
  • Int'l Joint Research
• [Presentation] Analysis of visitors’ behaviour in an Aquarium with a fixed one-way route (2021)
  • Author(s): Riho Kawaguchi, Claudio Feliciani, Daichi Yanagisawa, Shigeto Nozaki, Yukari Abe, Makiko Mita and Katsuhiro Nishinari
  • Organizer: Tenth International Conference on Pedestrian and Evacuation Dynamics (PED2021)
  • Int'l Joint Research
• [Presentation] Modelling and simulation of visitors’ behaviour in an Aquarium with a fixed one-way route (2021)
  • Author(s): Riho Kawaguchi, Daichi Yanagisawa, Claudio Feliciani, Shigeto Nozaki, Yukari Abe, Makiko Mita, and Katsuhiro Nishinari
  • Organizer: 17th Condensed Matter days
  • Int'l Joint Research
• [Presentation] 非マルコフ完全非対称単純排他過程の流量の近似式 (2021)
  • Author(s): 柳澤大地
  • Organizer: RIMS共同研究（公開型）「可積分系数理の諸相」
  • Invited