山地城市道路交通规划设计关键影响因素研究

Research on Key Influencing Factors of Road Traffic Planning and Design in Mountainous Cities

摘要:

以重庆主城立体交通体系为研究对象，系统探讨山地城市道路交通规划设计的关键影响因素。首先阐述山地城市的基本概念与城市结构，分析其独特的道路交通特征，包括路网体系、路网密度、道路运行及交通管理4个方面。通过道路网密度、道路面积率等多项道路物理属性评价指标的分析，揭示山地城市在路网建设与运行效率中的先天不足和短板。针对山地的地形高差、山水湖泊带来的道路挑战，结合多年工作的实例，深入研究道路网规划设计在“独立成网、路网分隔、路网连通度、地块开口、左进左出”等方面的应对策略与措施，研究成果可为同类城市交通规划设计提供理论参考与实践借鉴。

Abstract:

Taking the three-dimensional transportation system in the main city of Chongqing as the research object, the key influencing factors of road traffic planning and design in mountainous cities are systematcially explored. Firstly, the basic concepts and urban structure of mountainous cities are explained and their unique road traffic characteristics are analyzed, including road network system, road network density, road operation, and traffic management. Through the analysis of multiple road physical attribute evaluation indicators such as road network density and road area ratio, the inherent deficiencies and shortcomings of mountainous cities in road network construction and operational efficiency are revealed. In response to the challenges posed by the terrain height difference and the presence of mountains, rivers and lakes in mountainous areas, and based on years of work experience, the strategies and measures ard delved for road network planning and design in terms of "independent network formation, road network separation, road network connectivity, plot opening, and left in and left out". The research results can provide theoretical and practical references for similar urban transportation planning and design.