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- Title
基于微观个体避难行为的城市小微开敞 空间应急救灾效能评价--以西安市为例
- Authors
陈 晨; 程 林; 窦睿音
- Abstract
Small-micro open spaces make up lor the lack of spatial layout and quantity ol emergency shelters, and ensure the spatial laimess of residents refuge. According to earthquake events happened in Xi'an, a typical case area is firstly selected to discern the small-micro open spaces, which are suitable for emergency refuge. Secondly, the disaster tolerance ability and the accessibility of the small-micro open spaces are evaluated. Finally, based on the micro survey data ol individual evacuation behavior, the quantitative assessment on the emergency relief effectiveness ol small-micro open spaces is conducted. It is found as follows. 1) From the perspective of safety and efficiency, the small-micro open spaces, which are suitable for emergency refuge, are composed ol green spaces, open spaces among buildings, open spaces in campus and public parking lots. 2) The disaster tolerance ability and accessibility ol the small-micro open spaces have significant spatial differences. The disaster tolerance ability ol the small-micro open spaces in "block system" districts are weak, such as the villages in the city, old residential areas, unit compounds and areas along the roads, while the accessibility is better. On the contrary, the small-micro open spaces in the "closed" districts such as villas and high-end residential areas have stronger disaster tolerance ability, but poorer accessibility. 3) According to the actual residential evacuation behaviors, the actual emergency relief effectiveness of small-micro open spaces, which are widely infiltrated in high-density urban building areas and easy for residents to approach and perceive, is relatively higher. They are important refuge destinations for residents during disasters. This study is helpful for discerning the urban small-micro open spaces and providing basis for the evaluation ol emergency relief capacity ol urban small-micro open spaces.
- Publication
Geography & Geographic Information Science, 2021, Vol 37, Issue 6, p71
- ISSN
1672-0504
- Publication type
Article
- DOI
10.3969/j.issn.1672-0504.2021.06.011