External Career 【 display / non-display

  • 2012.04
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    2015.03

     

  • 2018.03
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    2019.09

     

  • 2019.10
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    2020.03

     

  • 2020.04
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    2021.03

    Chiba University  

  • 2020.04
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    2022.03

    Chiba University  

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Affiliated academic organizations 【 display / non-display

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    THE CITY PLANNING INSTITUTE OF JAPAN 

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    JAPANESE INSTITUTE OF LANDSCAPE ARCHITECTURE 

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    JAPANESE ASSOCIATION OF QUALITATIVE PSYCHOLOGY 

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    JAPAN INSTITUTE OF TOURISM RESEARCH 

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    ARCHITECTURAL INSTITUTE OF JAPAN 

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Research Interests 【 display / non-display

  • 風景計画

  • 震災遺構

  • 観光

  • 緑地計画

  • 景観

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Research Areas 【 display / non-display

  • Social Infrastructure (Civil Engineering, Architecture, Disaster Prevention) / Architectural planning and city planning

Published Papers 【 display / non-display

  • Incorporation of citizens' opinions into the process of earthquake ruins maintenance: A case study of the Great East Japan earthquake ruins in Miyagi Prefecture

    Ryo Nishisaka, Katsunori Furuya

    JAPAN ARCHITECTURAL REVIEW ( Wiley )  4 ( 1 ) 176 - 191   2021.01 [ Peer Review Accepted ]

    Type of publication: Research paper (scientific journal)

     View Summary

    The Great East Japan Earthquake struck in March 2011, causing a huge tsunami on the northeastern coast of Japan. In the disaster area, there has been a movement to preserve the damaged structures as earthquake ruins. In this study, the characteristics of establishing consensus were investigated by clarifying how the earthquake ruins have been preserved and removed, and how the opinions of citizens were accounted for in the process of maintaining these sites. The study focused on 21 earthquake ruins in Miyagi Prefecture, which were the closest to the epicenter. We extracted 30 elements from the earthquake ruins maintenance process and created labels for them. From these, we prepared time-series charts and flowcharts and discussed the relation between entities and citizens' opinions regarding the maintenance process. We clarified four stages pertaining to the preserved ruins and found four types of relationships between the major opinions and treatment decisions. Furthermore, the periods following the earthquake were divided into three phases: pioneering, deliberation, and implementation. Consequently, we suggested that citizens' opinions, coupled with expert advice, could be used to help establish consensus in an incremental manner when making administrative decisions.

  • ADOPTION OF CITIZEN OPINIONS IN THE PROCESS OF EARTHQUAKE RUINS MAINTENANCE Case study on the Great East Japan Earthquake ruins in Miyagi prefecture

    西坂涼, 古谷勝則

    日本建築学会計画系論文集 ( Architectural Institute of Japan )  84 ( 759 ) 1177‐1187(J‐STAGE) - 1187   2019 [ Peer Review Accepted ]

    Type of publication: Research paper (other science council materials etc.)

     View Summary

    <p> In this study, we examine the process for dealing with the earthquake ruins in Miyagi prefecture caused by the Great East Japan Earthquake, including the preservation, removal, and maintenance of the ruins. For this purpose, we analyzed 21 earthquake ruins, extracted 30 elements of the maintenance process, and created appropriate labels. We created time series charts and flowcharts, and extracted four stages of the preserved earthquake ruins: (a) the treatment decision stage, (b) the basic concepts stage, (c) the design stage, and (d) the operation stage. In cases where ruins were not preserved, they were divided into "inverted" and "exclusion" types.</p><p> Based on the events that occurred during the maintenance of the earthquake ruins, the time following the earthquake's occurrence was divided into three periods: pioneering, consideration, and implementation. During the pioneering period, it was decided that the police station in Onagawa Town would be preserved as an earthquake ruin, and that a fishing vessel in Kesennuma City would be dismantled. Toward the end of this period, the government decided to support the initial cost of earthquake ruin preservation. During the consideration period, many municipalities discussed and decided on the treatment of earthquake ruins, such as preservation or removal. During this period, municipalities held a conference with earthquake ruin experts, in which each municipality decided to preserve their ruins in accordance with the values noted by experts. Finally, during the implementation period, the municipalities performed concrete reviews of the preservation and management measures. When reviewing these cases, the opinions of citizens were considered as to whether the ruins should be preserved or not. Subsequently, we focused on the citizens' opinions in the maintenance process and organized their contents, methods, objects, dates, and so on.</p><p> Among the 37 opinions, 83% were compiled by the municipalities, while the remaining 17% were spontaneously submitted by the citizens. We created the labels "Earthquake tradition," "Candidate selection," and "Treatment of preservation/dismantlement, etc." to classify these opinions. Further, there were opinions on utilization methods based on earthquake ruin preservation plans, which we labeled as "Proposal for preservation and utilization" or "Draft policy for preservation and utilization." For the relationship between opinion content and treatment decision, we used the labels "Majority in favor of preservation" and "Preservation requested." When preservation was excluded, the labels were "Majority oppose preservation" and "Opinion unknown," which almost agree with "inverted" and "exclusion" types, respectively.</p><p> In conclusion, this study demonstrates that in the maintenance process of earthquake ruins, municipalities were the fundamental entity. We suggest that citizens' opinions and the advice provided by experts may help establish a consensus on administrative decision-making for earthquake ruin preservation in a step-by-step manner. Moreover, we clarified that the treatment decision is decided based on the intention of a majority opinion from citizens. We believe there is a possibility that citizen participation at the decision-making stage may affect the design or operation stage. Further research on the relationship between earthquake ruins and citizen opinion is required to facilitate sustainable management in cooperation with citizens.</p>

  • Actual Conditions of Interest and Knowledge of the Great East Japan Earthquake by University Students Who Study Landscape and Introduction to Learning Process

    西坂涼, 古谷勝則

    ランドスケープ研究 ( Japanese Institute of Landscape Architecture )  81 ( 5 ) 733‐738 - 738   2018.03 [ Peer Review Accepted ]

    Type of publication: Research paper (other science council materials etc.)

     View Summary

    <p>Sustainable human resource development is important for the landscape field to contribute to the long-term reconstruction of areas affected by the Great East Japan Earthquake. For this purpose, actual conditions of interest and knowledge about the disaster by students of landscape must be clar ified. In this study, a questionnaire and group work were conducted for university students specializing in the field. Then, introduction to learning process is discussed. First, the questionnaire was analyzed quantitatively to understand the degree of interest, knowledge, and motivation for action regarding the Great East Japan Earthquake. As a result, it was understood that the students have little knowledge of the disaster in sp ite of the high degree of interest. Next, information about the Great East Japan Earthquake that the students want to know and why became clear through group work. The text data was obtained and analyzed, applying a quantitative analysis method called SCAT. The interests of the students were classified into five types, and the reasons for the occurring interest were classified into four types. A large group can be formed by strongly connecting interest "interest for the consciousness of victims" and reason "interest in people".</p>

  • Establishment of Kataribe-Guides and Their Activities at Remnants of the Great East Japan Earthquake

    NISHISAKA Ryo, FURUYA Katsunori

    The Tourism Studies ( 日本観光研究学会 )  29 ( 2 ) 17 - 28   2018 [ Peer Review Accepted ]

    Type of publication: Research paper (other science council materials etc.)

     View Summary

    "Kataribe-Guides" bring visitors to remnants of the Great East Japan Earthquake, and give a tour by sharing their own experience and key learning from the disaster. Two local residents, who work as "Kataribe-Guides" at the remnants of earthquake in Ishinomaki City, Miyagi Prefecture, have been studied as a subject in this research. Interviews were conducted with the subjects, and 49 texts have been obtained regarding the establishment and the progress of their activities. The texts have been analyzed by Steps for Coding and Theorization (SCAT). Following the SCAT procedure, descriptions of the has been extracted regarding "establishment and activities of Kataribe-Guides", "issues Kataribe-Guides face", and "the development potential of Kataribe-Guides' activities". And seven factors have been collated as "further investigation".

Other Papers 【 display / non-display

  • A Study on the Population Change on the Coastal Area Affected by the Great East Japan Earthquake, Focus on the Area around the Earthquake Ruins in Iwate, Miyagi, and Fukushima Prefecture

    西坂 涼, 古谷 勝則

    日本建築学会東北支部研究報告集. 計画系 ( 日本建築学会東北支部 )  ( 82 ) 87 - 92   2019.06

     

  • 震災遺構の処置決定に向けた会議等における検討事項の変遷―石巻市震災伝承検討委員会資料の分析を通して―

    西坂涼, 西坂涼

    都市計画報告集(CD-ROM)   ( 17 ) 400‐403   2019.04

     

    J-GLOBAL

Presentations 【 display / non-display

  • The Area around the Earthquake Ruins in the Miyagi Prefecture: A Study on Population Change and Aging after the 2011 Great East Japan Earthquake

    Ryo Nishisaka, Katsunori Furuya

    International Conference 2019 on Spatial Planning and Sustainable Development  1900.01  -  1900.01 

  • Projects to Transmit Earthquake Experiences Contained in the Recovery Plans from the Great East Japan Earthquake

    Ryo Nishisaka, Katsunori Furuya

    Japan Geoscience Union MEETING 2018  1900.01  -  1900.01 

  • Population Change in Ishinomaki City, Miyagi Prefecture, with a Focus on the Area around the Earthquake Ruins

    Ryo Nishisaka, Katsunori Furuya

    Japan Geoscience Union MEETING 2019  1900.01  -  1900.01 

  • Memorial parks as an earthquake experience communication method in the Great East Japan Earthquake recovery plans

    Ryo Nishisaka, Katsunori Furuya

    Asian-Pacific Planning Societies2018  1900.01  -  1900.01 

  • Desired Functions of Parks and Green Space in Reconstruction Plan from the Great East Japan Earthquake in Miyagi Prefecture

    Ryo Nishisaka, Katsunori Furuya

    Japan Geoscience Union MEETING 2016  1900.01  -  1900.01 

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

  • Grant-in-Aid for Scientific Research(C)

    Project Year: 2020.04  -  2023.03 

    Direct: 3,300,000 (YEN)  Overheads: 4,290,000 (YEN)  Total: 990,000 (YEN)

  • Grant-in-Aid for JSPS Fellows

    Project Year: 2018.04  -  2020.03 

    Direct: 1,500,000 (YEN)  Overheads: 1,500,000 (YEN)  Total: 0 (YEN)