基于iG2SFCA的公园绿地可达性研究——以昆明市主城区为例-中国名城

文章信息/Info

Title:: Study on Traffic Accessibility of Park Green Space Based on iG2SFCA: Taking the Main Urban Area of Kunming as an Example

作者:: 唐翀; 胡博文; 唐翀，昆明理工大学建筑与城市规划学院硕士生导师，深圳市城市交通规划设计研究中心专业总工程师，教授级高级工程师；胡博文（通信作者），昆明理工大学建筑与城市规划学院硕士研究生。

Keywords:: accessibility; park green space; space justice; 2SFCA; Kunming City

摘要:: 公园绿地对城市环境宜居水平有着重要影响。为更准确地刻画城市公园绿地的服务水平，基于改进高斯两步移动搜索法（iG2SFCA），考虑公园绿地的服务差异和多交通方式下居民选择差异，采用路径规划API实时交通成本等数据，对市民所能实际获得的公园绿地服务进行量化评价，最后对公园绿地可达性的空间分异进行分析，并提出针对性的改进建议。研究发现昆明主城区公园绿地服务总体呈“西多东少”格局，在中心城区毗邻区及滇池两岸存在“一环两带”的高可达性区域；综合公园为居民提供了最多的公园绿地服务；骑行方式下的居民活动范围中可以获得更多的公园绿地服务。基于现状问题，研究从公园绿地建设和交通体系建设两方面提出了优化策略。

Abstract:: Park green space has an important impact on the livable level of urban environment. In order to more accurately depict the service level of urban park green space, based on the improved Gauss two-step mobile search method (iG2SFCA), this paper considers the service differences of park green space and residents’ choice differences under multiple transportation modes, and adopts route planning API real-time transportation cost data to conduct quantitative evaluation of the park green space services actually available to citizens. Finally, the paper analyzes the spatial differentiation of green space accessibility and puts forward some suggestions for improvement. The results show that the park green space service in the main urban area of Kunming presents a pattern of "more in the west and less in the east". In the adjacent areas of the central urban area and the two banks of the Dianchi Lake, there is a high accessibility area of "one ring and two belts". Comprehensive parks provide residents with the most park green space services; Residents in the cycling mode can get more park green space services.Based on the current situation, optimization strategies have been proposed from two aspects: park green space construction and transportation system construction.