中文摘要：

以长三角城市群为例，从客运总量、交通设施、交通方式和旅客出行特征四个方面比较分析了城市群内外城际出行的特征。结果表明，城市群内部城际出行的客运总量大于城市群外的客运总量，并且城市群内各城市之问有更快速和完善的交通通道和交通设施。城市群内各城市之间主要依托于发达的轨道交通和道路交通，城市群外的城际出行主要依托于铁路和航空运输。城市群内外城际出行旅客在职业、收入和出行形式方面也有差异。

英文摘要：

Taking the Yangtze River Delta urban agglomeration as an example, this paper compared and analyzed the intercity travel characteristics in and out urban agglomeration from passenger volume, traffic facilities, modes of transportation and passenger travel characteristics. The results show that the passenger volume inside the urban agglomeration is bigger than outside and that among the cities in the urban agglomeration, there are more rapid traffic corridors and more convenient traffic facilities. Inside the urban agglomeration, the main modes of transportation are rail and road, while outside the urban agglomeration the railway and air play the main role. There are also some differences of intercity travel passengers in and out urban agglomeration in job, income and travel form.