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A fine-grained OD estimating system fusing sensors in buses

Research Project

Project/Area Number 20K11789
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 60060:Information network-related
Research InstitutionNara Institute of Science and Technology

Principal Investigator

Arai Ismail  奈良先端科学技術大学院大学, 総合情報基盤センター, 准教授 (60512572)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
KeywordsITS / 交通 / ODデータ / IoT
Outline of Research at the Start

街中の人の動線を解析する際に役立つODデータをリアルタイムに自動収集する。路線バスでは普及しきっていない交通系ICカードの代替手段として、乗客が所有するスマートフォンが発信する無線LANのビーコン・Bluetooth探索応答の解析手法や、カメラ映像を解析する手法が研究されているが、前者は送信元MACアドレスがプライバシー対策でランダム化され追跡性能が低下し、後者のカメラ映像もオクルージョン耐性がない問題がある。本研究ではこれら単一情報源による解析手法から脱却し、路線バスに搭載し得るセンサ群のデータ解析結果を複合し、互いの短所を補完し合うことで現実的なコストで高品質にODデータを生成する。

Outline of Final Research Achievements

To achieve high-precision acquisition of origin-destination (OD) data for bus passengers, we evaluated the potential for generating OD data using each of the following information sources: WLAN or Bluetooth devices possessed by passengers, and in-vehicle camera footage. We aimed to enhance the accuracy of OD data generation by integrating these sources and considering indirect information such as weather conditions.
As a result, we obtained evaluation results for OD data generation using Bluetooth and camera footage as single information sources. However, during the research period, we did not achieve a solution for integrating multiple information sources, leaving this as a remaining challenge. The foundational validation indicated that camera footage was dominant, revealing the need for improvements in the acquisition methods of other single information sources.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的な成果は乗降客数の推定においては機械学習モデルの新たな考案や複数情報源による特徴量の策定によって高精度化を実現したことにある。ODデータ生成については複数情報源の活用手法の確立までには至らなかったが、常時取得可能であることから本研究成果の再現率が低く見えても、そもそもパーソントリップ調査に比べて飛躍的に量が増えるため、実用性向上に貢献できる。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (15 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (1 results) Presentation (13 results) (of which Int'l Joint Research: 9 results) Remarks (1 results)

  • [Int'l Joint Research] James Madison University/Northern Michigan University(米国)

    • Related Report
      2021 Research-status Report
  • [Presentation] Improving Bus Arrival Time Prediction Accurancy with Daily Periodic Based Transportation Data Imputation2023

    • Author(s)
      Takumi Niwa, Ismail Arai, Arata Endo, Masatoshi Kakiuchi, Kazutoshi Fujikawa
    • Organizer
      2023 International Conference on Smart Mobility (SM)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Benchmark of Deep Learning Visual and Far-Infrared Videos Toward Weather-tolerant Pedestrian Traffic Monitoring2023

    • Author(s)
      Takumi Fukuda, Ismail Arai, Arata Endo, Masatoshi Kakiuchi, Kazutoshi Fujikawa
    • Organizer
      023 International Conference on Smart Mobility (SM)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Bus Ridership Prediction with Time Section, Weather, and Ridership Trend Aware Multiple LSTM2023

    • Author(s)
      Tatsuya Yamamura, Ismail Arai, Masatoshi Kakiuchi, Arata Endo, Kazutoshi Fujikawa
    • Organizer
      2023 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Origin Destination Estimation Carrying over Rolling Proximity Identifiers with RSSI2022

    • Author(s)
      Masato Kawashima, Ismail Arai, Arata Endo, Masatoshi Kakiuchi, Kazutoshi Fujikawa
    • Organizer
      022 IEEE Global Conference on Artificial Intelligence and Internet of Things (GCAIoT)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] 同一便と同一バス停における乗客数の変動特性を考慮したLSTMによる路線バス乗客数予測2022

    • Author(s)
      山村 竜也, 新井 イスマイル, 遠藤 新, 垣内 正年, 藤川 和利
    • Organizer
      マルチメディア, 分散協調とモバイル2022シンポジウム論文集
    • Related Report
      2022 Research-status Report
  • [Presentation] 複数スマートフォンのMACアドレスランダム化の非同期性を用いたODデータ自動取得手法の提案と評価2022

    • Author(s)
      川島 将渡, 遠藤 新, 垣内 正年, 新井 イスマイル, 藤川 和利
    • Organizer
      情報処理学会研究報告ユビキタスコンピュティングシステム研究発表会(UBI)
    • Related Report
      2021 Research-status Report
  • [Presentation] Transit System Prediction for Real-time Weather Conditions: Fleet Management and Weather-related Ridership2022

    • Author(s)
      Ahmed Elnoshokaty, Ismail Arai, Samy El-Tawab and Ahmad Salman
    • Organizer
      2022 International Conference on Smart Mobility (SM)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] The Effect of COVID-19 on the Transit System in Two Regions: Japan and USA2021

    • Author(s)
      Ismail Arai, Ahmad Elnoshokaty, Samy El-Tawab, Ahmad Salman
    • Organizer
      2021 IEEE Global Conference on Artificial Intelligence and Internet of Things (GCAIoT)
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Leveraging IoT and Weather Conditions to Estimate the Riders Waiting for the Bus Transit on Campus2021

    • Author(s)
      Ismail Arai, Ahmed Elnoshokaty, Samy El-Tawab
    • Organizer
      2021 IEEE International Conference on Pervasive Computing and Communications Workshops (PerCom Workshops)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Route-Bus Driver Evaluation System Using Digital Tachograph Data and Static Route Features2020

    • Author(s)
      Atsuto Ishinaga, Ismail Arai, Kazutoshi Fujikawa
    • Organizer
      2020 IEEE Global Conference on Artificial Intelligence and Internet of Things (GCAIoT)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] DOCOR: Sensing Everything From Route Buses2020

    • Author(s)
      Ismail Arai, Masahiro Kametani, Norihiko Honda, and Toyokazu Akiyama
    • Organizer
      2020 IEEE 6th World Forum on Internet of Things (WF-IoT)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 運行情報と気象情報の畳み込みによるバス到着時刻予測手法2020

    • Author(s)
      石長 篤人, 新井 イスマイル, 垣内 正年, 藤川 和利
    • Organizer
      情報処理学会研究報告高度交通システムとスマートコミュニティ研究発表会(ITS)
    • Related Report
      2020 Research-status Report
  • [Presentation] バス車両に搭載されたセンサを用いた乗降客数予測とその活用2020

    • Author(s)
      新井イスマイル
    • Organizer
      第47回インターネット技術第163委員会研究会 (ITRC meet47)
    • Related Report
      2020 Research-status Report
  • [Remarks] 公共交通ビッグデータ解析

    • URL

      https://inet-lab.naist.jp/project/12/

    • Related Report
      2022 Research-status Report

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Published: 2020-04-28   Modified: 2025-01-30  

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