Transport and land use model for next generation mobility and its uncertainty analysis

• Project/Area Number: 17K18905
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Research Field: Civil engineering and related fields
• Research Institution: Hiroshima University
• Principal Investigator: Chikaraishi Makoto 広島大学, 国際協力研究科, 准教授 (90585845)
• Co-Investigator(Kenkyū-buntansha): 瀬谷 創 神戸大学, 工学研究科, 准教授 (20584296) ; 浦田 淳司 東京大学, 大学院工学系研究科(工学部), 助教 (70771286) ; 日下部 貴彦 東京大学, 空間情報科学研究センター, 講師 (80604610)
• Project Period (FY): 2017-06-30 – 2020-03-31
• Project Status: Completed (Fiscal Year 2019)
• Budget Amount: ¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000); Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000); Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000); Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
• Keywords: 自動運転 / ライドシェア / 相互作用 / 不確実性 / マルチタスク / Recursive logit / 自動運転車 / 次世代モビリティ / 交通・土地利用モデル / 不確実性分析

Outline of Final Research Achievements

We conducted a series of analyses to confirm the impacts of new mobility services (autonomous vehicles, and sharing services) and their uncertainties. The results imply that (1) the introduction of autonomous vehicle would affects the distribution of facilities and residential location, and (2) the diffusion of autonomous vehicles and its impacts would depend on the design of the vehicles and marketing strategies, indicating that high uncertainties would exist in the prediction results.

Academic Significance and Societal Importance of the Research Achievements

次世代モビリティ導入の影響を評価するためのアクティビティモデル，及び，生活行動の変化が長期的に土地利用パターンに及ぼす影響を記述するモデルを構築した点が主要な学術的貢献と考えている．また，これらのモデルを使用した実証分析結果の提示した点，及び，次世代モビリティの普及はサービス設計に加え住民のリスク認知にも影響を受けることを実証的に示した点は，学術的にも社会的にも有用な知見であると考える．

Research Products

• [Int'l Joint Research] インド工科大学ボンベイ校(インド)
• [Journal Article] Analysis of Travel-Time Use in Crowded Trains using Discrete-Continuous Choices of Commuters in Tokyo, Japan (2020)
  • Author(s): Varghese, V., Chikaraishi, M., Kato, H.
  • Journal Title: Transportation Research Record Volume: -
  • Peer Reviewed
• [Journal Article] Risk Perception and Social Acceptability of Autonomous Vehicles: A Case Study in Hiroshima, Japan (2020)
  • Author(s): Chikaraishi, M., Khan, D., Yasuda, B., Fujiwara, A.
  • Journal Title: Transport Policy Volume: -
  • Peer Reviewed
• [Presentation] Heterogenous effects of multitasking in autonomous vehicles on residential location choice behavior (2020)
  • Author(s): Kakujo, R., Chikaraishi, M., Fujiwara, A.
  • Organizer: The 99th Annual Meeting of the Transportation Research Board
  • Int'l Joint Research
• [Presentation] Mode Choice and Travel-Based Multitasking: Analysis of Self-Selection and Unobserved Heterogeneity among Travelers in Mumbai, India (2019)
  • Author(s): Varghese, V., Chikaraishi, M., Jana, A.
  • Organizer: International Choice Modelling Conference 2019
  • Int'l Joint Research
• [Presentation] 動画を用いた自動運転システムに対するリスク認知の分析 (2018)
  • Author(s): 安田万里, 藤原章正, 力石真
  • Organizer: 第57回土木計画学研究発表会
• [Presentation] 中山間地域におけるライドシェアの成立可能性に関する数値シミュレーション (2018)
  • Author(s): 森脇宇俊, 力石真, 藤原章正
  • Organizer: 第57回土木計画学研究発表会
• [Presentation] Empirical estimation of temporal utility profiles under time-space prism constraints (2018)
  • Author(s): Chikaraishi, M.
  • Organizer: the 15th International Conference on Travel Behaviour Research
  • Int'l Joint Research