成都6个市属城市公园的可达性分析

Accessibility Analysis of 6 Municipal Parks in Chengdu

公园城市背景下城市公园的建设是城市可持续性发展的关键,而公园的可达性是公园建设布局合理性和服务社会公平性重要体现。基于ArcGIS网络分析法,以可达面积衡量了成都市6个市属公园的步行可达性或驾车可达性。结果表明:公园可达性和其所在位置的路网丰富度呈正相关,对于交通比较便捷的公园而言,步行20 min可为周围大约5 km^(2)范围内的城市居民提供服务,而交通便捷性较差的公园,如植物园,步行15 min的可达面积也仅为0.07 km^(2)。如果选择驾车出行,那么在60 min内,动物园和植物园基本可以为整个成都市的居民提供服务。

The construction of urban parks in the context of park cities is the key to the sustainable development of cities, and the accessibility of parks is an important embodiment of the rationality of park construction layout and the fairness of serving society. Based on ArcGIS network analysis method, the pedestrian accessibility or driving accessibility of six municipal parks in Chengdu is measured by the accessible areas. The results show that the accessibility of the park is positively related to the richness of the road network where it is located. For parks with convenient traffic, walking for 20 minutes can provide services for urban residents within about 5 km^(2) around, while for parks with poor traffic convenience, such as botanical gardens, walking for 15 minutes can only reach 0.07 km^(2). If you choose to travel by car, the zoo and botanical garden can basically provide services for the residents of Chengdu within 60 minutes.