研究目的：城市轨道交通联络线是连接两条独立运营线路的辅助线路。在城市轨道交通线网规划的过程中，联络线的合理布局是网络中各条线路连通的关键前提条件。建设成本优化法是从城市轨道交通网络全局出发，以图论为理论基础，根据实际现场调查数据，提出总建设成本最低的联络线布设方案的设计方法。在计算机的辅助下，该方法适用于线路数量较多、线路间关系较复杂的城市轨道交通线网的联络线设置。本文对联络线建设成本优化法进行了思考和研究，以进一步优化联络线的布局方法。
研究结论：本文提出了“联络线建设影响范围”、“加权平均成本等级”和“虚拟建设成本等级”的概念及其确定方法，使建设成本优化法更完善。并以北京市2010 年底城市轨道交通线网的联络线规划为案例，介绍建设成本优化法的具体操作过程，并阐述该方法的优缺点。
Research purposes:The connecting line in urban rail transit is assistant line that connects two independent railways．During the network planning of urban mass transit，the reasonable layout of connecting lines is the key prerequisite for better connectivity of each railway in urban mass transit． Optimization method for construction cost，which is originated from general planning of the whole network，based on graph theory and actual field survey data，is adopted to establish the layout of connecting lines． The method is applicable to the urban mass transit network planning with more lines and more complicated connection relation between lines with the aid of a computer． The paper aims to optimize the method by studying and thinking it．
Research conclusions:The paper puts forward the concept of“the sphere of influence building connecting lines”，“the weighted average of cost classes”and“virtual building cost classes”to complete the method，introduces how to establish the layout of connecting lines in Beijing urban mass transit network in 2010，and elaborates the advantages and disadvantages of the method．
PDF(497 KB)
