基于GIS-网络分析的山地城市公园空间可达性研究

摘要

空间可达性是影响城市公园布局合理性以及服务效能评价的重要因素.基于网络分析法原理和GIS技术平台,将道路抽象为线,建立城市道路拓扑网络,以公园入口作为网络分析的源点.以山地城市——重庆市万州区为例,从城市空间形态、总体布局与行政分区方面研究了城市公园的空间可达性和服务状况,总结出城市公园空间可达性存在的问题,提出了相应对策措施,为城市园林绿地系统规划以及城市公园空间分布格局的优化提供依据.%Accessibility is an important factor which influences the rationality of urban park's layout and the evaluation of service efficiency. Based on network analysis and GIS, the roads has been visualized as lines to build up the topology network of urban streets, and the entrances of parks are regarded as the source point of network analysis. The article takes the mountainous city Wanzhou of Chongqing as an example, analyzes the existing problems of the accessibility of urban parks from the aspects of urban pattern, overall layout and administrative zoning, brings forward corresponding solutions, and provides basis for optimizing urban green space planning and urban park layout.