基于实测车速的中小城镇公园交通可达性研究

Research on Traffic Accessibility of Parks in Medium and Small Cities Based on Measured Vehicle Speed

摘要:

为了更准确反映出实际交通状况对我国中小城镇公园可达性的影响，以佛山市高明区为研究区，应用 GIS 网络分析法，分析研究区内主要公园在交通高峰期和平峰期各类出行方式的可达性特征与差异。结果表明：1）研究区公园可达性整体不佳，东部西江地区公园可达性较高，可达性沿路网向西递减，这与公园绿地和道路网络的分布密切相关；2）小汽车和公交车的公园可达服务范围和人口均优于步行和自行车；3）无论何种出行方式，研究区内仍有超过 60% 的区域处于公园服务盲区，约 20% 的居民无法享受较好的公园服务；4）交通拥堵直接影响了小汽车和公交车的实际运行速度，导致 2 种出行方式的公园服务范围和服务人口明显减少，尤其是在高峰期。因此，中小城镇公园交通可达性应兼顾各类出行方式，尤其要重视提升慢行交通系统的可达性。

Abstract:

In order to more accurately reflect the influence of actual traffic conditions on the accessibility of parks in small and medium-sized cities in China, this research used Gaoming District of Foshan City as the study area, analyzing the accessibility characteristics and differences of various travel modes of major parks in the based on GIS network analysis method. The results show that： Firstly, the accessibility of parks in the study area is not good generally. The accessibility of parks in Xijiang area in the east is higher, which decreases westward and is closely related to the distribution of park green space and road network. Secondly, park-accessible service scopes and populations are better served by cars and buses than by walking and cycling. Thirdly, no matter choosing what mode of travel, there are still more than 60% park service blind spots in the study area, and about 20% residents can't enjoy better park services. Finally, traffic congestion directly affects the actual speed of cars and buses, which leads to the obvious reduction of the service scope and service population of the parks in the two modes of travel, especially during peak hours. Therefore, the accessibility of parks in small and medium-sized cities should take into account all kinds of travel modes, especially the accessibility of non-motorized traffic systems.