论文介绍了地铁路网规划的主要内容，并对地铁路网规模进行了探讨，提出了合理路网规模的概念。

Main contents of Rail Transit plan are firstly introduced in this paper, Rail Transit network scale is also discussed and the concept of rational network scale is introduced.

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伦敦地铁是世界上第一个地下铁路网，于1863年首次启动。今年它迎来了150周年庆。

London's subway, the world's first underground railway network, first opened in 1863. It is celebrating its 150th anniversary this year.

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据野村证券的分析师JiongShao的报告，去年这一计划得到提速，新建铁路网中的高铁部分将提前三年，在2012年完成。各城市纷纷抢上地铁项目，并以此为荣耀。

Indeed, last year it accelerated and, according to Jiong Shao, an analyst with Nomura Securities, the high-speed portion of this network should be finished by 2012, three years early.

youdao

据野村证券的分析师JiongShao的报告，去年这一计划得到提速，新建铁路网中的高铁部分将提前三年，在2012年完成。各城市纷纷抢上地铁项目，并以此为荣耀。

Indeed, last year it accelerated and, according to Jiong Shao, an analyst with Nomura Securities, the high-speed portion of this network should be finished by 2012, three years early.

youdao