高铁一响，黄金万两。 日前，深圳市发改委启动广深第二高铁南延线规划建设方案预研招标，或将南延至香港。 无独有偶，京沪第二高铁、成渝中线高铁已全线动工，沪杭第二高铁有望于年底开工。 一时之间，超大城市，纷纷步入"第二高铁"时代。 无论京沪、广深还是成渝、沪杭，早在10多年前就已开通高铁，构成"八纵八横"高铁网络的主动脉。 如果将动车、城轨都囊括在内，重点城市之间的高铁线路远远不止一条。 仅广深之间，就有广深高铁、广深动车、穗莞深城际，未来还将有"跨市地铁"直连，远期还有"高速磁悬浮"。 中西部地区高铁干线普遍饱和，但经济发达、人口密集、商贸频密的超大城市，高铁远远不够。 一方面，超大城市之间的干线高铁，客流持续加大，运力日益紧张，高峰时期一票难求。 作为全球开行列车最多、客流密度最大、上座率最高的线路，京沪高铁最快4分钟一班车，频次堪比地铁。 根据规划，广深第二高铁，起于深圳机场东站，经东莞中心区、白云机场站至广州北站，向北衔接广清永州高铁，向南有望拓展到香 港。 有着沪杭第二高铁之称的沪乍杭高铁，始自上海东方枢纽，经上海、嘉兴到杭州，总体沿杭州湾北岸呈东西走向。 即使如此，京沪高铁在高峰时期仍然供不应求，加上 ...

Core Viewpoint - The official release of the 2025 Yangtze River Delta integration development project list marks significant progress in transportation integration, particularly with the focus on high-speed and intercity rail projects related to Hangzhou [1] Group 1: Water Town Tourism Line Intercity Railway - The Water Town Tourism Line intercity railway will start construction soon, connecting key cities and tourist spots in the Yangtze River Delta, enhancing regional tourism and economic development [3][4] - This railway will have a design speed of 160 km/h, faster than typical urban rail lines but slower than high-speed trains, allowing for efficient travel while accommodating frequent stops [3][4] - The railway will feature a denser station layout compared to high-speed rail, with stations located near popular tourist destinations, promoting tourism in the region [4] Group 2: Shanghai-Hangzhou Second High-Speed Railway - The Shanghai-Zhajiang-Hangzhou high-speed railway is being expedited, providing a second direct connection between Shanghai and Hangzhou, alleviating passenger flow and enhancing travel efficiency [5] - This new line will reduce travel time significantly, allowing passengers to reach Shanghai Pudong Airport in approximately 40 minutes, compared to the current travel time of around 3 hours [5] - The railway will improve connectivity between cities in the region, supporting economic growth and development in related industries such as real estate and commerce [7] Group 3: Regional Collaborative Development - The integration of transportation in the Yangtze River Delta is a key national strategy, with projects like the "super metro" and the Shanghai-Zhajiang-Hangzhou high-speed railway serving as milestones for regional economic and social development [6][7] - Enhanced transportation networks will facilitate personnel movement, material circulation, and economic cooperation among cities, fostering a collaborative development environment [7] - The successful implementation of these projects will require careful planning and coordination among local governments to address challenges such as funding, land acquisition, and environmental impact [7]

Core Viewpoint - The Shanghai-Zhajiasu-Hangzhou High-Speed Railway, known as "沪乍杭高铁," is a highly anticipated project that aims to enhance connectivity between Shanghai and Hangzhou, significantly reducing travel time and promoting regional integration [1][3]. Group 1: Project Overview - The railway will span a total length of 224.067 km, with 197.447 km of new track being constructed, including 54.240 km in Shanghai and 143.207 km in Zhejiang [1]. - The project will feature 9 stations, including 4 new stations and 4 stations that will be expanded or renovated, with a design speed target of 350 km/h [1]. - The total investment for the project is estimated at 67.255 billion yuan, with a construction period of 4 years [1]. Group 2: Strategic Importance - The railway is a crucial part of the national "eight vertical and eight horizontal" high-speed rail network, expected to reduce travel time from Hangzhou West Station to Shanghai East Station to 40 minutes [3]. - The project is aligned with the Yangtze River Delta integration strategy, enhancing the "same city effect" among cities in the region [3]. Group 3: Local Impact - The new 临平北 station will alleviate passenger flow pressure from the existing 临平南 station and connect to metro lines, enhancing local accessibility [3]. - The 桐乡 station will connect with the Hangzhou Airport high-speed rail, facilitating future interconnectivity between Xiaoshan Airport and Pudong Airport [3]. Group 4: Recent Developments - The project has recently entered the land approval and preparation phase, with a tender for land surveying and approval services initiated on May 29 [2]. - The railway has been included in the second batch of practical projects for the integrated development of the Yangtze River Delta, as announced at a high-level forum on June 7 [2].