转自：新华财经 新华财经上海9月5日电 （谷青竹） 交通干线是基础设施的"骨架"，更是撬动城市空间拓展、产业联动发展的"杠杆"，直接决定城市群与都市圈融通共进的 效率。日前，《关于推动城市高质量发展的意见》发布，将"稳妥有序推动城市群一体化和都市圈同城化发展"列为关键任务，进一步为未来城市擘画了发展 路线图。在此背景下，交通基建当如何规划，以精准适配区域协同发展目标？带着这一问题，新华财经专访了同济大学交通学院教授陈小鸿，以长三角为样 本，解码区域交通规划的底层逻辑与未来路径。 新线路："有没有"转向"好不好" 今年7月，国家交通运输部表示，我国已建成全球最大的高速铁路网——"八纵八横"高铁网已建成投产81.5%，高铁营业里程达4.8万公里，占世界高铁总里 程的70%以上，覆盖全国97%的50万以上人口城市。 陈小鸿认为，随着高铁网络整体框架基本成形，城市群都市圈轨道交通规划的核心已从"有没有"转向"好不好"。以加密网络覆盖、丰富出行选项来提升交通 服务质量与能力，成为现阶段补短板的关键。 这一判断，正体现在超大城市纷纷布局的"第二高铁"建设中：除了已全线动工的京沪第二高铁、成渝中线高铁，7月30日广深第二高 ...

Core Viewpoint - The approval of the feasibility study for the new Shanghai-Hangzhou high-speed railway marks a significant step in enhancing connectivity between Shanghai and Hangzhou, with a total investment of approximately 67.097 billion yuan and a design speed of 350 km/h [1][2]. Group 1: Project Overview - The new high-speed railway will run approximately 223.8 kilometers, connecting Shanghai East Station to Hangzhou West Station, with a total of 9 stations planned [1]. - The project is expected to commence construction by the end of the year, with a total construction period of 4 years [2]. Group 2: Current Challenges - The existing Shanghai-Hangzhou high-speed railway is currently the busiest in the country, often facing ticket shortages due to high demand [3]. - The current reliance on a single high-speed line has led to significant congestion, necessitating the construction of a second line to alleviate pressure [4][5]. Group 3: Regional Impact - The new railway is anticipated to reduce commuting times significantly, with travel from Jiaxing to Shanghai Pudong reduced to 25 minutes and from Hangzhou to Shanghai Pudong to 40 minutes, enhancing regional integration [2]. - The construction of the second line is expected to reshape the urban landscape and economic dynamics in the Yangtze River Delta region, particularly benefiting cities along the route [6][7]. Group 4: Beneficiaries - The new line will likely accelerate population outflow from smaller cities like Pinghu, while benefiting major cities like Shanghai and Hangzhou by enhancing their connectivity [7][10]. - The construction of the second line will strengthen the strategic position of areas like Linping in Hangzhou, facilitating better access to both Shanghai and the new transportation hubs [9][10]. Group 5: Future Developments - The establishment of the new railway will contribute to the development of a dual-hub system in Shanghai, with the Eastern Hub complementing the existing Hongqiao Hub [8][9]. - The new railway will also enhance the status of Hangzhou West Station as a significant transportation hub, supporting the growth of the surrounding areas and the tech industry [11][12].