山地组团城市受到山体、丘陵、河谷等自然条件制约，其城市形态、路网结构以及交通特征与平原城市有较为明显的区别，将直接影响轨道交通线网布局。本文以贵阳市轨道交通线网规划为例，针对山地组团型城市特征，对线网规划常规使用的面点线要素层次分析法进行了优化，并分析总结了山地组团城市在线网规划阶段的规划要点，希望能为后续山地城市轨道交通规划工作提供参考和借鉴。通过研究分析，提出山地组团型城市轨道交通线网规划，在“面”的分析中应重点对关键交通截面的轨道供需关系进行量化分析，根据需求并结合网络形态提出轨道供给方案；在“线”的分析中应充分重视和利用竖向关系进行线路规划，增加轨道交通的可达性；在“点”的分析中站点布设应充分考虑地形因素，并做好周边用地的衔接。

Since mountain cluster cities are restricted by natural conditions such as mountains, hills, and valleys, their urban forms, road network structure and traffic characteristics are different from those of plain cities, which will directly affect the layout of the rail transit network. In this study, by taking Guiyang rail transit network planning as an example, according to the characteristics of mountainous cluster cities, we optimized a method commonly used in transit network planning, analytic hierarchy process, involving elements of surface, point, and line. Furthermore, we analyzed and summarized the key points in the transit network planning stage of mountain cluster cities to provide references for the subsequent mountainous urban rail transit planning. Through research and analysis, the key point of planning in urban rail transit networks for mountain cluster cities is proposed. In the analysis of the "surface" element, the key points include the quantitative analysis of the rail supply-demand relationship in key transport sections, as well as the proposal of the rail supply scheme according to the combination of the demand and the network form. In the analysis of the "line" element, the vertical relationship should be paid full attention to and used in transit network planning to increase the accessibility of rail transit; In the analysis of the "points" element, topographic factors should be fully considered in the layout of stations and the surrounding land should be well connected.