城市轨道交通线网规划中线路敷设方式的探讨与研究

Discussion and Research on the Modes of Laying Track for the Line Network Plan of Urban Mass Transit

研究目的:城市轨道网络规划要按照城市总体规划的要求,结合土地使用规划情况和线路周围地理条件,选择合适的线路敷设形式,使城市空间资源得到合理的配置,以节省工程投资和运营成本。研究方法:结合南京市、广州市城市轨道交通线网建设规划的经验,对线路敷设方式规划的必要性、主要内容、影响因素及确定原则进行阐述论证。研究结果:对地面、高架、地下线3种形式在适用范围、土地利用、环境影响、工程造价等方面进行了综合分析比较,为线网线路敷设规划提供技术支持。研究结论:城市轨道网络规划是保证城市轨道建设科学性、合理性、经济性以及可操作性的关键环节,线网资源共享规划确保了城市轨道线网建设规划的有效实施,为具体线路工程可行性研究提供了设计依据。

Research purposes： The rational laying track mode should be selected for the line network plan of urban mass transit according to the overall city plan, the situation of land usage and the geographic conditions around the line, for the purposes of disposing the city space resources rationally and saving construction and operation costs. Research methods： Based on the experiences of planning and construction of urban mass transit networks in Nanjing and Guangzhou, the demonstrations are made for the necessity of planning, main contents, influencing factors and decision - making principle of laying track modes. Research results： The analyses and comparisons of three modes of laying track in the ground, elevation and underground are made from the areas of applicable scope, land usage, environmental influence and construction cost for providing the technical support for laying track. Research conclusions：The urban mass transit network plan is the important factor of guaranteeing construction of urban mass transit with scientificness, rationality, economic characters and operational characters, and the common sharing plan of line network resources can effectively guarantee the implement of line network plan of urban mass transit, which can provide the basis for design of the concrete project.