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Risk Type Analysis of Building on Urban Flood Damage
Water ( IF 3.0 ) Pub Date : 2021-09-12 , DOI: 10.3390/w13182505
Kiyong Park , Sang-Hyun Choi , Insang Yu

Climate change caused by global warming has resulted in an increase in average temperature and changes in precipitation pattern and intensity. Consequently, this has led to an increase in localized heavy rain which intensifies the uncertainty of the development of urban areas. To minimize flood damage in an urban area, this study aims to analyze the flood risk effect on buildings by ranking the risk of flood damage for each building type and sorting the long-term land use plan and the building type that requires particular consideration. To evaluate the flood risk of each building type, vulnerability analysis and exposure analysis were conducted in five regions of the Ulsan City. The vulnerability analysis includes determination of each building type by using the building elements which are sensitive to flood damage. In terms of the exposure analysis, environmental factors were applied to analyze the flood depth. The mapping based on the results from two analyses provided the basis for classifying the flood risk into five classes (green, yellowish green, yellow, orange, red). The results were provided in the urban spatial form for each building type. This analysis shows that the district near the Taehwa river is the area with the highest risk class buildings (red and orange class buildings). Notably, this area plays a pivotal functional role in administrating the Ulsan City and has a high density of buildings. This phenomenon is explained by city development which is centered around the lowland; however, given the high value of property, the potential risk is proven to be high.

中文翻译:

城市洪涝灾害风险类型分析

全球变暖引起的气候变化导致平均气温升高,降水模式和强度发生变化。因此,这导致局部暴雨增加,加剧了城市地区发展的不确定性。为了最大限度地减少城市地区的洪水破坏,本研究旨在通过对每种建筑类型的洪水破坏风险进行排序,并对长期土地利用计划和需要特别考虑的建筑类型进行排序,来分析洪水风险对建筑物的影响。为了评估每种建筑类型的洪水风险,在蔚山市的五个地区进行了脆弱性分析和暴露分析​​。脆弱性分析包括通过使用对洪水破坏敏感的建筑元素来确定每种建筑类型。在暴露分析方面,应用环境因素来分析洪水深度。基于两次分析结果的映射为将洪水风险分为五类(绿色、黄绿色、黄色、橙色、红色)提供了基础。结果以每种建筑类型的城市空间形式提供。该分析表明,太华河附近的地区是风险等级最高的建筑(红色和橙色等级建筑)的区域。值得注意的是,该地区在管理蔚山市方面发挥着举足轻重的作用,建筑密度高。这种现象可以用以低地为中心的城市发展来解释;然而,鉴于财产价值很高,事实证明潜在风险很高。基于两次分析结果的映射为将洪水风险分为五类(绿色、黄绿色、黄色、橙色、红色)提供了基础。结果以每种建筑类型的城市空间形式提供。该分析表明,太华河附近的地区是风险等级最高的建筑(红色和橙色等级建筑)的区域。值得注意的是,该地区在管理蔚山市方面发挥着举足轻重的作用,建筑密度高。这种现象可以用以低地为中心的城市发展来解释;然而,鉴于财产价值很高,事实证明潜在风险很高。基于两次分析结果的映射为将洪水风险分为五类(绿色、黄绿色、黄色、橙色、红色)提供了基础。结果以每种建筑类型的城市空间形式提供。该分析表明,太华河附近的地区是风险等级最高的建筑(红色和橙色等级建筑)的区域。值得注意的是,该地区在管理蔚山市方面发挥着举足轻重的作用,建筑密度高。这种现象可以用以低地为中心的城市发展来解释;然而,鉴于财产价值很高,事实证明潜在风险很高。结果以每种建筑类型的城市空间形式提供。该分析表明,太华河附近的地区是风险等级最高的建筑(红色和橙色等级建筑)的区域。值得注意的是,该地区在管理蔚山市方面发挥着举足轻重的作用,建筑密度高。这种现象可以用以低地为中心的城市发展来解释;然而,鉴于财产价值很高,事实证明潜在风险很高。结果以每种建筑类型的城市空间形式提供。该分析表明,太华河附近的地区是风险等级最高的建筑(红色和橙色等级建筑)的区域。值得注意的是,该地区在管理蔚山市方面发挥着举足轻重的作用,建筑密度高。这种现象可以用以低地为中心的城市发展来解释;然而,鉴于财产价值很高,事实证明潜在风险很高。这种现象可以用以低地为中心的城市发展来解释;然而,鉴于财产价值很高,事实证明潜在风险很高。这种现象可以用以低地为中心的城市发展来解释;然而,鉴于财产价值很高,事实证明潜在风险很高。
更新日期:2021-09-12
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