Transfer problems exited in Shanghai Mass Transit are listed and analyzed through the case of Shanghai Railway Station where the Shanghai rail transit Line 1 &Line 3 join and intersect.

• 摘要分析了上海市轨道交通换乘的现状，并以上海站的换乘问题??例定量计算了换乘方案间的社会效益差异，说明解决换乘问题的重要程度。