Visualization of Disaster Prevention Perceptions of Ancestors Based on Disaster Safety Analysis of Shrine Locations

2023 Fiscal Year Final Research Report

• Project/Area Number: 19K21664
• Research Category: Grant-in-Aid for Challenging Research (Exploratory)
• Allocation Type: Multi-year Fund
• Review Section: Medium-sized Section 4:Geography, cultural anthropology, folklore, and related fields
• Research Institution: Wakayama University
• Principal Investigator: Nakashima Atsushi 和歌山大学, システム工学部, 教授 (90283960)
• Co-Investigator(Kenkyū-buntansha): 湯崎 真梨子 和歌山大学, 食農総合研究教育センター, 客員教授 (50516854)
• Project Period (FY): 2019-06-28 – 2024-03-31
• Keywords: 神社 / 立地 / 祭神 / 浸水害 / 土砂災害

Outline of Final Research Achievements

In this study, the locations of 4.822 shrines in the former Ki no Kuni and the former Yoshino no Kuni in the Kii Peninsula were recorded on GIS by shrine deity, and compared with hazard maps to evaluate disaster safety by shrine location and shrine deity. As a result, 91.7% of the shrines were evaluated to be on the safe side for inundation damage and 63.6% for landslide damage. By shrine deity, more than 90% of the shrines were evaluated to be on the safe side for flood damage, regardless of the deity. On the other hand, shrines of nature worship were often located on the safe side against landslides, while Susan Susan, which was evaluated as highly disaster averse in the previous study, was located on the dangerous side in most of the cases.

Free Research Field

防災工学

Academic Significance and Societal Importance of the Research Achievements

本研究では，災害安全性，特に立地選定に対する先人の知恵と知識の確からしさを防災工学的に確認することができ，また，それを可視化することに成功した。この知見は，災害が多発する特に山間部の防災技術に対して有用な知見を与えるとともに，神社という場所の価値を再評価することにつながる人文地理学的にも新規性のある結果を導き出した。さらに，GISを用いた分析法が，様々な場面での防災解析に応用できることを示すことができた。その一方で，近年注目されるクラウドマッピングがプライバシー保護の観点から課題があることも分かった。