The extensive layout of roadside green spaces make them important green disaster mitigation nodes in highdensity areas of any city; hence, further improvements in their disaster mitigation functions would make the urban disaster prevention system more effective. In the present research, different types of roadside green spaces in the Gulou district of Nanjing were identified to establish a highly efficient urban disaster refuge green space system. A total of 35 built-up roadside green spaces were employed as the study site, and for field investigation and statistical analysis, 21 factors were selected from the aspects of spatial form, functional facilities, and surrounding environment. According to their disaster mitigation abilities, cluster analysis classified these roadside green spaces into four categories: complete type, potential type, centralized type, and broad type. Finally, by analyzing the characteristics of different types of roadside green spaces, corresponding optimization strategies were proposed. In comparison to previous investigations, our study focused on the quantitative evaluation of disaster mitigation and risk protection function of roadside green spaces. In the future, the obtained results will serve as important scientific references to the planning and construction of green spaces in high-density areas of Nanjing, China.

中文翻译：

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南京市路边绿地减灾与评价

路边绿地的广泛布局，使其成为城市高密度地区重要的绿色减灾节点；因此，进一步改善其减灾功能将使城市防灾系统更加有效。本研究在南京市鼓楼区确定了不同类型的路边绿地，以建立高效的城市灾害避难绿地系统。共选取35个已建成的路边绿地作为研究场地，从空间形态、功能设施、周边环境等方面选取21个因子进行实地调查和统计分析。根据其减灾能力，聚类分析将这些路边绿地分为四类：完整型、潜在型、集中型和广泛型。最后，通过分析不同类型路边绿地的特点，提出了相应的优化策略。与以往的调查相比，我们的研究侧重于对路边绿地减灾和风险保护功能的定量评价。未来，所得结果将为南京高密度地区绿地规划建设提供重要的科学参考。