环射路网演化机制与发展趋势研究

Research on Evolution Mechanism and Development Trend of Radial Road Network

摘要:

环射路网是大城市普遍采用的路网形态，路网发展与城市用地的相互影响存在阶段性变化。一般在城市成长初期路网被动适应用地扩张需求，而在环射路网成型后则对城市空间格局的拓展和变化产生制约性影响，因此环射路网在不同阶段的发展策略也不尽相同。以武汉市为例，分析了大城市环射路网的形成机制和阶段性发展特征，研究路网发展与城市格局的互动关系。重点分析了在环射路网形成、城市进入存量发展阶段下，环射路网在城市空间发展、交通可持续运行、城市环境提升等方面存在的问题。结合武汉市相关经验，提出了地下化、开放化、生态化、功能化的环射路网持续发展策略。

Abstract:

The radial road network is a commonly adopted road network form in big cities, and the interaction between road network development and urban land use changes in stages. Generally, in the early stages of urban growth, the road network passively adapts to the needs of land expansion, but after the radial road network is formed, it has a restrictive impact on the expansion and change of the urban spatial pattern. So the development strategies at different stages of the radial road network are also different. Taking Wuhan as an example, the formation mechanism and phased development characteristics of the radial road network in big cities are analyzed, and the interactive relationship between road network and urban pattern is studied. The focus is on analyzing the problems existing in the urban spatial development, traffic sustainable operation and urban environmental improvement of the radial road network under the circumstances where the radial road network is formed and the city enters the stage of stock development. Based on the experience of Wuhan City, a sustainable development strategies of underground, open, ecological and functional radial road network are proposed.