换乘站的换乘便捷与否直接关系到城市轨道交通整个线网的运行和乘客出行的效率。分析杭州地铁市民中心站换乘改造案例, 利用车站结构施工后运营前的窗口时间，增建换乘节点，实现便捷换乘，剖析该类换乘站改造方式的前提条件、改造原则及改造要点，并对车站换乘预留和改造提出建议，如在近期车站设计中预留充足的换乘条件；适当加宽站台、加大站厅公共区；结合既有车站特点制定具体方案，合理利用土建条件进行适度改造等。为城市轨道交通换乘站改造提供借鉴.

Based on the Hangzhou Citizen Center Station transfer reconstruction case analysis, using the station key period from the finished structure construction to the operation beginning, add the transfer node to achieve convenient transfer, analyze the necessary condition of the transfer reconstruction case, the principles and the main points, and make suggestion of the station transfer reservation and construction.