Okada, Yusaku

写真a

Affiliation

Faculty of Science and Technology, Department of Industrial and Systems Engineering (Yagami)

Position

Professor

Related Websites

External Links
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Career 【 Display / hide 】

  • 2007.04
    -
    Present

    慶應義塾大学, 理工学部, 教授

  • 2021.10
    -
    Present

    慶應義塾大学, 研究連携推進本部, 副本部長

  • 2015.04
    -
    2019.03

    Cabinet Office, Council　for　Science　and　Technology and Innovation, Senior science and Technology Policy Fellow

  • 2011.04
    -
    2015.03

    横浜国立大学, 理工学部　化学・生命系学科, 非常勤講師

  • 2004.04
    -
    2007.03

    法政大学, 国際情報学部, 非常勤講師

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Academic Background 【 Display / hide 】

  • 1986.03

    Keio University, Faculty of Science and Engineering, 管理工学科

    University, Graduated

  • 1988.03

    Keio University, Graduate School, Division of Science and Engineeri, 管理工学専攻

    Graduate School, Completed, Master's course

  • 1992.03

    Keio University, Graduate School, Division of Science and Engineeri, 管理工学専攻

    Graduate School, Completed, Doctoral course

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Academic Degrees 【 Display / hide 】

  • 工学　, Keio University, 1992.03

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Research Areas 【 Display / hide 】

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Social systems engineering (Social System Engineering/Safety System)

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Safety engineering (Social System Engineering/Safety System)

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Social systems engineering (Social System Engineering/Safety System)

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Safety engineering (Social System Engineering/Safety System)

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Research Keywords 【 Display / hide 】

  • Safety Management

  • Management of Technology

  • Human Factors Engineering

  • Service Management

  • Service Management

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Proposed Theme of Joint Research 【 Display / hide 】

  • An activation of safety management in organizations

    Interested in joint research with industry (including private organizations, etc.),  Desired form： Technical Consultation, Funded Research, Cooperative Research

  • Organizational Design and Management

    Interested in joint research with industry (including private organizations, etc.),  Desired form： Funded Research, Cooperative Research

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Books 【 Display / hide 】

  • ヒューマンエラーと経営戦略 : ヒューマンファクター・マネジメントによる未来価値創造

    岡田有策, 日科技連出版, 2023.03,  Page： 180

    　View Summary

    安全のためのシステム（対策や教育を含む）の実効性を高めるためには適切なマネジメントが必要です。形骸化しやすい安全管理の仕組みを的確にマネジメントすることにより、企業のサービスや製品が利用者だけでなく地域社会にまで安心をもたらすことができます。的確な安全マネジメントは企業のレピュテーション（評判）をも向上させていきます。　
    　本書ではヒューマンエラー対応を含む安全対策を企業価値向上のための戦術と捉え、経営戦略との整合を図りながら、事業者のレピュテーションを高める安全活動の体制を構築していくプロセスについて解説します。

  • 「ヒューマンファクターズ概論」

    OKADA YUSAKU, 慶應義塾大学出版会, 2005.05

  • ヒューマンエラーの発生要因と削減・再発防止策

    技術情報協会, 2019.08,  Page： 668

    Scope: 4.7 レピュテーションを考慮した安全・安心活動

  • 安全工学便覧 （第4版）

    安全工学会, コロナ社, 2019.07,  Page： 1192

    Scope: 7.2 不安全性と人的要因

  • SIPの総括と今後の方向

    SIPインフラ連携委員会, 土木学会, 2019.03

    Scope: 6．責任とリスク管理

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Papers 【 Display / hide 】

  • Evaluation Method of Employee's Motivation to Participate in Safety Activities Using Daily Work Report

    Nanako Yokozawa, Yusaku Okada

    Social and Occupational Ergonomics (AHFE Open Access)   2023

    Research paper (international conference proceedings), Joint Work, Last author, Corresponding author, Accepted

    　View Summary

    To improve the quality of safety activities, many companies are aiming to increase employees' understanding of safety activities and motivate them to participate in them. The main method to measure the willingness to participate is through questionnaires, but it takes time and effort. Therefore, we focused on information on "Awareness" events reported by on-site employees in daily work report. We call this information "Information on Preparing for the Unexpected”. The purpose of this study was to develop a method to evaluate employees' understanding of and willingness to participate in safety activities using "Information on Preparing for the Unexpected”. Through experiments, trouble-related data were collected at several workplaces, and text mining was conducted. We worked on the construction and validation of the system.

  • Expansion of the System for Collecting Information on Hospital Incidents - Aiming to revitalizing on-site management

    Yuriko Imura, Yusaku Okada

    Physical Ergonomics and Human Factors (AHFE Open Access)   2023

    Research paper (international conference proceedings), Joint Work, Last author, Corresponding author, Accepted

    　View Summary

    In medical facilities and general hospitals, a variety of information regarding incidents in patient care is collected and analysed. However, due to the large differences in knowledge and experience of on-site risk managers, previous studies have shown several problems with the data collected. Underlying these problems is the analyst's limited knowledge of human factors, IT, and management. However, it is very difficult to give more time and cost for safety training to on-site risk managers. Therefore, in this study, we decided to organize the results of past research on human error factor analysis from the perspective of on-site management. As a result, we were able to obtain a set of elements [elements for activation of on-site activities] for improving the ability of on-site risk managers to recognize, the willingness of on-site risk managers to participate in medical safety activities, and the management level of on-site risk managers. Based on the "Elements for Activation of On-Site Activities", we developed a prototype of an incident reporting support system.

  • Method for Enhancing Evaluation of the Human Error Probability in Disaster Risk Assessment for Industrial Plants

    Mamiko Murahashi, Yusaku Okada

    Human Error, Reliability, Resilience, and Performance (AHFE Open Access)   2023

    Research paper (international conference proceedings), Joint Work, Last author, Corresponding author, Accepted

    　View Summary

    An important part of considering countermeasures for disasters in industrial plants is to conduct an accurate risk assessment. In general, we assess risk based on two indicators: the harm severity and the probability. We first select candidate countermeasures based on the harm severity. Next, the specifications of countermeasures such as the scope of application, expected lifetime and cost are determined, taking into account of the probability. As a result, we introduce appropriate countermeasures in the field that can control risks within acceptable limits.Various countermeasures for disasters caused by human error are considered similarly and introduced in the field. It is necessary to analyze the factors related to human error, which are called performance shaping factors, in order to evaluate the human error probability. For this purpose, workers with appropriate knowledge and ability of human factors must be assigned to the risk assessment team. However, it is difficult for many industrial plants to secure the required number of workers who can accurately analyze and evaluate the effects of human factors. At the accident level, it is possible to invite human factor experts to the analysis team because the budget for the analysis is large. On the other hand, the budget for an incident analysis is limited because of the large number of incidents. The purpose of this study is to support the enhancement of incident-level disaster risk assessment. We examine the assessment method of the human error probability that can be conducted by those with limited knowledge of human factors.We attempted to evaluate on a scale of six (5: Certain, 4: Likely, 3: Possible, 2: Unlikely, 1: Rare, and 0: Eliminated), which are commonly used in risk assessments, rather than to calculate detailed values such as the human error probability.First, we organized and classified factors related to the occurrence of human error by text mining of disaster incident cases over the past 20 years. Second, we referred to a number of past studies on performance shaping factors and constructed [the database of factors influencing on human error risk]. Finally, we developed a system to evaluate the human error probability by extracting keywords and sentences from incident reports of industrial plants and matching them with [the database of factors influencing on human error risk]. The system consists of the following functions.(1)Extract keywords w_i and sentence data S_j=(w_1,w_2,…,w_k) that keywords are concatenated from an incident report.(2)Check S_j against [the database of factors influencing on human error risk] to estimate the influence on the human error probability. The estimated impact for S_j is x_i.(3)Comprehensively evaluated x_i. This overall impact evaluation value is denoted as Y.(4)Indicate the human error probability by a 6-level value based on Y.(5)Adapt the estimated human error probability and the harm severity entered separately to a commonly used risk matrix.We proposed a method that can be adapted to the risk matrix used in general disaster risk assessment. This method was validated by several safety administrator in an industrial plant and its validity and feasibility were confirmed. However, it is a problem for practical application to link with the incident report design because it is sometimes difficult to adapt to this method depending on the incident report design.
    Keywords: Human Reliability, Risk Assessment, Accident Report Analysis

  • A Failure Event Virtual Learning Method that Replaces Field Experience and Its Effectiveness Measurement

    Yusaku Okada, Takafumi Aoyagi

    Physical Ergonomics and Human Factors (AHFE Open Access)   2023

    Research paper (international conference proceedings), Joint Work, Lead author, Corresponding author, Accepted

    　View Summary

    Its known that 95 % of occupational accidents are caused by unsafe human behavior. Therefore, in order to prevent occupational accidents, various human resource education is implemented in each company, but due to the rut that accompanies continuation, many of them are only aimed at preventing serious accidents in steady state. Furthermore, since it takes time and manpower to conduct education, there is also a problem that these educational methods are not effectively utilized in the field. For example, in recent years, a method of supporting risk prediction using VR in high-place work has been considered, but it costs a lot of money to introduce it, and people who have little experience in the first place have the problem that it feels like a game. Merely continuing such a stereotyped education will not improve learning through experience, and it will be difficult to develop outstanding human resources with awareness. Furthermore, for those who have little experience in the field, even if they acquire knowledge through classroom lectures and group work, it is difficult to use it in the field and predict danger. Developing experienced and excellent human resources who can notice on-site is an urgent issue for the future of the company. Therefore, in this research, by investigating various conventional educational methods and sorting out their strengths and weaknesses, we will clarify the reasons why these educational methods are not being used in the field, improve the weaknesses, and improve the actual field. We propose a failure event virtual experience-based l learning method that replaces the field experience.In this study, we decided to measure the effect of the proposed learning method from the degree of awareness in the accident prevention activities carried out in Japanese companies. The reason for this is that in order to further improve the effectiveness of current safety education, it is most practical to measure awareness during activities that are actually carried out in the field, and it is not possible to measure with paper tests or questionnaires. Therefore, based on the characteristics of on-site workers, we decided to examine methods to improve their awareness and willingness to participate in safety activities. Furthermore, we decided to conduct an analysis based on an evaluation experiment to see if the subject's awareness improved by receiving the proposed educational method prior to the safety activities.

  • An antibacterial coated polymer prevents biofilm formation and implant-associated infection

    Ishihama, H; Ishii, K; Nagai, S; Kakinuma, H; Sasaki, A; Yoshioka, K; Kuramoto, T; Shiono, Y; Funao, H; Isogai, N; Tsuji, T; Okada, Y; Koyasu, S; Toyama, Y; Nakamura, M; Aizawa, M; Matsumoto, M

    SCIENTIFIC REPORTS 11 ( 1 ) 3602 2021.02

    ISSN  2045-2322

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Reviews, Commentaries, etc. 【 Display / hide 】

  • Safety management from a stakeholder perspective -Activities to improve social reputation-

    岡田有策

    ヒューマンファクターズ (日本プラントヒューマンファクター学会)  26 ( 1 ) 3 - 8 2021.08

    Article, review, commentary, editorial, etc. (scientific journal), Single Work

  • 医療機関におけるリスクマネージャー育成支援に関する検討

    こう 希悦, 山崎 春奈, 岡田 有策

    日本医療安全学会学術総会抄録集 ((一社)日本医療安全学会)  7回   146 - 146 2021.05

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Presentations 【 Display / hide 】

  • イノベーションの社会実装を促進させるためのビジネス環境の提案　～緩和から適応へ～

    岡田有策

    SX/DX/GX Summit 2024, 

    2024.11
    , 

    Public lecture, seminar, tutorial, course, or other speech

    　View Summary

    自然災害は日本という国土に様々な形で困難を突きつけてきます。これらの困難を克服することに様々な技術革新が貢献していますが、予防保全的な役割を担うには多くの解決すべき問題が残っています。新たなフィールドでのイノベーションを活性化させるためには新たなビジネス環境の設計・整備が重要です。そこで、将来のさまざまな災害に的確に対峙できる分野横断型の統合システムを構築すると共に、市民生活におけるハード／ソフト両面の損傷を最小化する技術のプロデュースを促進させる社会デザインの提案を検討する枠組みとして、適応ファイナンスコンソーシアムを立ち上げました。この考え方を社会実装させていくためには、レピュテーションなど金銭ではない価値を基軸にした新たなビジネスモデルを構築し、防災のみならず社会インフラの維持管理、農業を含むグリーンインフラの整備など多様な社会課題に対応できるようにしていくことが必要です。

    現在の子供たちが2030年以降に「日本に生まれてよかった」と率直に感じられるようにすることは日本という地域で様々な恩恵を得てきた世代の人間の大きな役割と考えます。“未来”という言葉を夢と希望をもって語れる社会にしていくことに貢献していく新たな取り組みについて、その課題の本質とともに解決の方向性についてご紹介致します。

  • A Study on Human Error Recovery Effect by Strengthening Follow-up System among Workers in Team Work

    Risako Shiraishi, Yusaku Okada

    8th International Conference on Applied Human Factors and Ergonomics (AHFE) and Affiliated Conferences, 

    2017.07
    , 

    Oral presentation (general)

  • A proposal of field-oriented system to support medical risk management. Support of Risk Management in small and medium sized hospital

    Akifumi Hiranuma, Yusaku Okada

    8th International Conference on Applied Human Factors and Ergonomics (AHFE) and Affiliated Conferences, 

    2017.07
    , 

    Oral presentation (general)

  • A study of evaluation method for safety activity at railroad station service in consideration of user's security feeling.

    Kazuki KIYOTA, Yuya TANABE, Yusaku OKADA

    7th International Conference on Applied Human Factors and Ergonomics (AHFE) and Affiliated Conferences, 

    2016.07
    , 

    Oral presentation (general)

  • Study on expanding the scope of the use of near-miss data in the work safety activities -Based on the pattern analysis of the characteristics of the methods and field activities related to work safety

    Kota TAKAHASHI, Yusaku OKADA

    7th International Conference on Applied Human Factors and Ergonomics (AHFE) and Affiliated Conferences, 

    2016.07
    , 

    Oral presentation (general)

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Research Projects of Competitive Funds, etc. 【 Display / hide 】

  • 社会インフラの価値評価に関する調査研究

    2021.08
    -
    Present

    大崎総合研究所, Commissioned ｒesearch, Principal investigator

  • 安全に関する指導・教育

    2021.04
    -
    Present

    東京地下鉄, Commissioned ｒesearch, Principal investigator

  • 安全マネジメント講習

    2021.04
    -
    Present

    京阪電鉄, Commissioned ｒesearch, Principal investigator

  • ヒューマンエラー防止活動に関する研究

    2021.04
    -
    Present

    西部石油, Commissioned ｒesearch, Principal investigator

  • 医療事故防止対策の研究

    2021.04
    -
    Present

    医療法人社団明芳会, Commissioned ｒesearch, Principal investigator

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Awards 【 Display / hide 】

  • ペイシェントセーフティーファースト賞

    小林尚人, 平沼明史, 岡田有策, 2019.03, 日本医療安全学会, 投薬業務に関わる 投薬業務に関わる PSF 分析

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 安全工学論文賞

    AKASAKA Toshiya,TANUMA Shozo, OKADA Yusaku, 2014.05, Japan Society for Safety Engineering, ヒヤリハットを活用した安全活動における気付きの育成

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 安全工学論文賞

    AKASAKA Toshiya, TANUMA Shozo, OKADA Yusaku, 2014.05, Japan Society for Safety Engineering, ヒヤリハットを活用した安全活動における気付きの育成

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 日本人間工学会　大島賞

    OKADA YUSAKU, 2001.08, 日本人間工学会, 構造的快適性評価手法の提案　-事例(自動車の乗降における快適さの評価)-

    Type of Award： Award from Japanese society, conference, symposium, etc.

  • 日本人間工学会 大島賞

    OKADA YUSAKU, 2001.08, 日本人間工学会, 構造的快適性評価手法の提案 -事例(自動車の乗降における快適さの評価)-

    Type of Award： Award from Japanese society, conference, symposium, etc.

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Courses Taught 【 Display / hide 】

  • SEMINAR IN INDUSTRIAL AND SYSTEMS ENGINEERING

    2025

  • OPEN SYSTEMS MANAGEMENT: LECTURE AND LABORATORIES

    2025

  • LABORATORIES IN SCIENCE AND TECHNOLOGY

    2025

  • LABORATORIES IN INDUSTRIAL AND SYSTEMS ENGINEERING (1)

    2025

  • INDEPENDENT STUDY ON SCIENCE FOR OPEN AND ENVIRONMENTAL SYSTEMS

    2025

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Social Activities 【 Display / hide 】

  • 日本学術会議第25期連携会員

    2020.10
    -
    2023.09

  • 日本学術会議第24期連携会員

    2017.10
    -
    2020.09

  • ＳＩＰ（戦略的イノベーション創造プログラム） 『インフラ維持管理・更新・マネジメント技術』 サブ・プログラム・ディレクター

    2015.07
    -
    2019.03

  • 宇宙航空研究開発機構

    2010.06
    -
    2013.04

  • 日本学術会議21期、第三部「総合工学」「安全・安心・リスク分化委員会」

    2009.04
    -
    2012.03

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Memberships in Academic Societies 【 Display / hide 】

  • 日本人間工学会, 

    1986.04
    -
    Present

  • 日本プラントヒューマンファクター学会, 

    1996.09
    -
    Present

  • 土木学会, 

    2019.03
    -
    Present

  • 安全工学会, 

    2001.04
    -
    Present

  • 日本医療安全学会, 

    2015.04
    -
    Present

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Committee Experiences 【 Display / hide 】

  • 2024.08
    -
    Present

    Physical Ergonomics & Safety Scientific Advisory Board, 16th International Conference on Applied Ergonomics 2025

  • 2024.04
    -
    Present

    会長, Japan Consortium for Adaptation Finance Promotion

    　View Remarks

    第２条 本コンソーシアムは、政府の「適応ファイナンス」 のこれまでの検討内容を踏まえ、地球温暖化に伴う気候変動による、人命や経済損失、社会インフラの機能不全などの市民生活を脅かす災害の物理リスクや財務影響を軽減・回避し、生活の安定、社会もしくは経済の健全な発展又は自然環境の保全を図ることに資する取り組みを推進する。具体的には「気候リスク」、「物理的リスク」、「財務への影響」を軽減するための方法の原則、枠組み、マネジメントプロセスの体系化を推進するとともに、ビジネス機会の獲得のために、投融資、保険などの金融スキームと、適応価値を最大化するための科学的かつ定量的な評価分析、効果測定および適応対策方法を活用した社会実装を推進することを目的にする。

  • 2023.10
    -
    Present

    委員, デジタル関係制度改革検討会 テクノロジーベースの規制改革推進委員会

    　View Remarks

    デジタル庁

  • 2023.08
    -
    Present

    Physical Ergonomics & Safety Scientific Advisory Board, 15th International Conference on Applied Ergonomics 2024

  • 2023.06
    -
    2024.03

    委員, デジタル技術を活用した建築物環境衛生管理のあり方に関する検討会

    　View Remarks

    厚生労働省

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