YABUKI Ken-ichi

Affiliation

Faculty of Urban Innovation, Division of Urban Innovation

Job Title

Associate Professor

Mail Address

E-mail address



写真a

Degree 【 display / non-display

  • Doctor of Engineering - The University of Tokyo

Campus Career 【 display / non-display

  • 2022.10
     
     

    Duty   Yokohama National UniversityFaculty of Urban Innovation   Division of Urban Innovation   Associate Professor  

External Career 【 display / non-display

  • 2021.4
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    2022.9

    The University of Tokyo   Research Center for Advanced Science and Technology   Project Research Associate  

  • 2019.4
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    2021.3

    Kobe Design University   Department of Environmental Design   Assistant Professor  

  • 2012.4
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    2015.5

    KUME SEKKEI Co. Ltd.  

Qualification acquired 【 display / non-display

  • Architect (first class)

 

Books 【 display / non-display

Papers 【 display / non-display

  • How Does Renovation of Vacant Houses Influence Social Capitals?

    Guan Xun, Shin Yuta, Yabuki Kenichi, Goto Chikako, Yoshimura Yuji, Koizumi Hideki

    Journal of the City Planning Institute of Japan   59 ( 1 )   27 - 35   2024.4

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The City Planning Institute of Japan   Joint Work  

    <p>With the growing necessity of utilization of vacant houses for regional revitalization, this paper aims to clarify how renovation of vacant houses influence Social Capitals (SC), which is said that its level will affect local community from various aspects. Results from questionaries indicated the possibility that communication with owners, designers or mediator, and learning about structures, materiality, and values of houses may affect the SC of their users. More detailed effects revealed by interviews, finding that 4 functions of renovation of vacant houses: working as a mediator for norms transmission; exemplifying norms; representing attitudes; and providing common points for communication, will directly or indirectly affect SC.</p>

  • Records and Future Policies Regarding Downsizing of Commercial Zone Areas in Japan

    Nakano Taku, Song Junhwan, Yabuki Ken-ichi, Miyashita Takahiro

    Journal of the City Planning Institute of Japan   58 ( 1 )   90 - 100   2023.4

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The City Planning Institute of Japan   Joint Work  

    <p>This paper analyzes the records and the future policies of 1,177 cities regarding the downsizing of commercial zoning areas to examine methods of revising land use regulations to maintain a lively city center. The results revealed the following points: First, commercial zone areas have expanded even as commercial demand has declined. Second, 15 cities have reduced commercial zoning by more than 5ha. Third, only a few cities have planned to reduce or revise commercial zoning in the future, but in those few cities, the zoning was reviewed based on their future land use demand. These findings suggest the need for a clear technical standard for the future operation of appropriate zoning.</p>

  • Research on the aspect of people's "Ibasho" in cyberspace and physical space

    Suzuki Akane, Yabuki Kenichi, Goto Chikako, Shin Yuta, Yoshimura Yuji, Koizumi Hideki

    Journal of the City Planning Institute of Japan   57 ( 3 )   926 - 932   2022.10

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The City Planning Institute of Japan   Joint Work  

    <p>Nowadays, people's “Ibasho” exist not only in physical space but also in cyberspace, but it is not clear what kind of “Ibasho” people have, including in cyberspace. The purpose of this study is to clarify the aspect of people’s “Ibasho” formed in cyberspace and physical space especially focusing on the characteristics and the psychological aspect of “Ibasho”. This study found that the psychological function of “Ibasho” differs depending on the type of “Ibasho” classified into four categories: cyberspace / physical space, personal / social, and what kind of place it is.In addition, based on the results, this study proposes eight points that make a difference between the "Ibasho" in cyberspace and physical space.</p>

  • A Study on the Actual Condition and Factors of Building Renewal in Aged Single-family Neighborhoods in suburbs Detached Houses

    Hayashi Kosuke, Kurose Takefumi, Yabuki Kenichi

    Journal of the City Planning Institute of Japan   57 ( 3 )   728 - 735   2022.10

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The City Planning Institute of Japan   Joint Work  

    <p>This study focuses on an aging single-family neighborhood in a suburb of Fukuoka City. The purpose of this study is to clarify the factors that affect the actual situation of building renewal and the likelihood of building renewal due to differences in housing supply methods. We found that building renewal is more likely to occur in neighborhoods built by a method in which only the land is sold (a) than in a method in which detached houses and land are sold at the same time (b). In addition, it was found that (1) the flexibility to change the lot size, (2) the location on a corner lot, and (3) the small difference in elevation from the front street had a particular impact on the likelihood of renewal. In type (b) Neighborhoods, residential rental is more likely to occur. In (a) type neighborhoods, the timing of housing construction is more diverse, and site division often occurs during rebuilding.</p>

  • The Role of Local SNS in Community Interaction in a High-Rise Apartment District

    Kobayashi Akari, Goto Chikako, Shin Yuta, Yabuki Ken-ichi, Yoshimura Yuji, Koizumi Hideki

    Journal of the City Planning Institute of Japan   57 ( 3 )   698 - 704   2022.10

    DOI CiNii Research

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    Language:Japanese   Publishing type:Research paper (scientific journal)   Publisher:The City Planning Institute of Japan   Joint Work  

    <p>The purpose of this study is to clarify the actual conditions of community interaction in a high-rise apartment cluster district and the role of community SNS in community interaction through a survey of actual living conditions and the use of community SNS in the high-rise apartment cluster district. The study also examines the challenges and potential uses of local SNS to promote regional exchange in high-rise apartment clusters. Specifically, we took up PIAZZA, a local SNS used in the high-rise apartment cluster area in Tokyo, and conducted a web-based questionnaire survey of its users. The results showed that 1) PIAZZA users go out frequently regardless of their attributes, but the degree of community interaction differs from person to person, and 2) PIAZZA in the area has a strong character as a place for mothers raising children to exchange information online, and its effect on actual interaction among residents is limited.</p>

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Review Papers 【 display / non-display

  • 郊外住宅地の限界を超えて

    矢吹剣一

    すまいろん   ( 114 )   36 - 39   2024

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    Authorship:Lead author   Language:Japanese   Publishing type:Article, review, commentary, editorial, etc. (other)   Single Work  

Awards 【 display / non-display

  • 第5回 博士論文賞

    2020.6   住総研  

    Individual or group name of awards:矢吹剣一

  • 都市住宅学会賞研究奨励賞

    2019.10   都市住宅学会  

    Individual or group name of awards:矢吹剣一

  • 第17回 2019年度 研究・実践選奨 奨励賞

    2019.6   住総研  

    Individual or group name of awards:矢吹剣一・黒瀬武史

  • 論文奨励賞

    2019.4   日本都市計画学会  

    Individual or group name of awards:矢吹剣一

  • 湯浅賞(研究奨励賞/博士論文部門)

    2018.11   日本不動産学会  

    Individual or group name of awards:矢吹剣一

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Grant-in-Aid for Scientific Research 【 display / non-display

  • 都市の趨勢に応じたダウンゾーニング技術の体系化

    Grant number:24K17414  2024.4 - 2027.3

    Grant-in-Aid for Early-Career Scientists

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    Authorship:Principal investigator  Grant type:Competitive

  • 人口減少に対応したダウンゾーニングの合意形成と計画技術

    Grant number:19K15166  2019.4 - 2023.3

    Grant-in-Aid for Early-Career Scientists

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    Authorship:Principal investigator  Grant type:Competitive

  • 戦略と戦術を往来するアジャイル(応答)型都市デザインマネジメント手法の構築

    Grant number:23H01581  2023.4 - 2026.3

    Grant-in-Aid for Scientific Research(B)

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    Authorship:Coinvestigator(s)  Grant type:Competitive

  • 人口減少・生活様式の変化に対応した商業地域の再編手法

    Grant number:22K04504  2022.4 - 2025.3

    Grant-in-Aid for Scientific Research(C)

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    Authorship:Coinvestigator(s)  Grant type:Competitive

  • 人口減少都市のアーバンデザイン手法の体系化と空き不動産の選択的再生に関する研究

    Grant number:22K04455  2022.4 - 2025.3

    Grant-in-Aid for Scientific Research(C)

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    Authorship:Coinvestigator(s)  Grant type:Competitive

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Other external funds procured 【 display / non-display

  • 人口減少都市シンポジウム2023

    2023.4 - 2024.3

    Private Foundations  国際研究集会援助

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    Authorship:Principal investigator 

Presentations 【 display / non-display

  • 市町村間の移動に着目した生活圏域の広がりに関する研究-沼津市と三島市を中心とする雇用圏を対象として-

    三吉康太、高見沢実、野原卓、矢吹剣一、尹莊植

    日本建築学会大会(近畿)  2023.9  日本建築学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 歩行者利便増進道路制度における利便増進誘導区域の指定位置とその要因に関する研究

    中能泰知、高見沢実、野原卓、矢吹剣一、尹莊植

    日本建築学会大会(近畿)  2023.9  日本建築学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 市民による低未利用地の活用の持続要因に関する研究 -千葉県柏市カシニワ制度を対象として-

    安井健吾、高見沢実、野原卓、矢吹剣一、尹莊植

    日本建築学会大会(近畿)  2023.9  日本建築学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • 英国のHistoric Landscape Characterisation の考察による歴史的経緯を含む景観特性の特定方法の形成に関する研究

    田中遼太郎、高見沢実、野原卓、矢吹剣一、尹莊植

    日本建築学会大会(近畿)  2023.9  日本建築学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

  • まちあるきを通した地域資源の認知および地域評価の変化が地域愛着に与える影響に関する研究 -藤沢市片瀬地区の住民を対象として-

    小林夏月、高見沢実、野原卓、矢吹剣一、尹莊植

    日本建築学会大会(近畿)  2023.9  日本建築学会

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    Event date: 2023.9

    Language:Japanese   Presentation type:Oral presentation (general)  

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Charge of on-campus class subject 【 display / non-display

  • 2024   Environmental Urban Design Studio F

    Interfaculty Graduate School of Innovative and Practical Studies

  • 2024   Environmental Urban Design Studio S

    Interfaculty Graduate School of Innovative and Practical Studies

  • 2024   Urban Management

    Interfaculty Graduate School of Innovative and Practical Studies

  • 2024   Globalized Local Studies

    Interfaculty Graduate School of Innovative and Practical Studies

  • 2024   Environmental Urban Design Studio F

    Graduate School of Urban Innovation

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Committee Memberships 【 display / non-display

  • 日本建築学会論文集委員会 委員

    2024.4 

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    Committee type:Academic society 

  • 日本建築学会空き地から構想する都市戦略小委員会 委員

    2023.4 

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    Committee type:Academic society 

  • 横浜市土地利用審査会 委員

    2023.3 

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    Committee type:Municipal 

  • 坂井市 歴史まちづくり推進協議会 委員

    2022.10 - 2024.3 

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    Committee type:Municipal 

  • 日本建築学会技術報告集委員会 委員

    2022.6 - 2024.5 

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    Committee type:Academic society 

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Social Contribution(Extension lecture) 【 display / non-display

  • YNUアーバニストスクールプログラム2023

    Role(s): Lecturer, Logistic support

    横浜国立大学大学院都市イノベーション学府・研究院  2023.10 - 2023.12