记者从中国国家铁路集团有限公司(下称"国铁集团")获悉，12月26日，随着西安至延安高铁开通运营， 中国高铁营业里程突破5万公里。目前，高铁覆盖了我国97%的城区人口50万以上城市，营业里程位居 世界第一位，超过世界上其他国家高铁营业里程的总和。 高铁技术树起国际标杆。CR450动车组样车于2024年底发布，运营速度、运行能耗、车内噪音、制动距 离等主要指标国际领先，试验期间跑出了动车组相对交会时速896公里的新纪录，标志着我国铁路在世 界上首次构建了时速400公里动车组顶层指标体系。 服务保障国家重大战略和经济社会高质量发展成效显著。高铁建设产业链长、辐射面广，为全方位扩大 内需、产业结构优化升级注入了强劲动能，高铁装备制造业已成为我国具有全产业链国际竞争优势的战 略性新兴产业。高铁具有绿色低碳的比较优势，较好地服务了美丽中国建设。据测算，"十四五"时期高 铁完成客运周转量与公路完成同样客运周转量相比，减少二氧化碳排放约1444万吨。 为世界高铁发展贡献了中国智慧和中国方案。"十四五"时期，中印尼共建的雅万高铁开通运营，雅加达 至万隆间的旅行时间由3个多小时缩短至46分钟，促进了雅万高铁经济走廊加速形成；匈 ...

本报北京12月26日电（记者刘静）记者从中国国家铁路集团有限公司获悉，12月26日，随着西安至延安 高铁开通运营，中国高铁运营里程突破5万公里，高铁发展再上新台阶。 自2008年首条高速铁路——京津城际铁路开通运营以来，10多年间，中国高铁实现了从无到有、从追赶 到领跑的跨越。"十四五"期间，京哈、郑渝、贵南、福厦、济郑高铁等一大批重大项目开通运营，建成 投产高铁1.2万公里，一批革命老区、欠发达地区和沿线县域迈入"高铁时代"；"八纵八横"高铁网日益 完善：500公里半径内城市群基本形成1至2小时交通圈，1000公里跨区域城市间4小时通达，2000公里跨 区域城市间实现"朝发夕至"。 "中国高铁取得历史性成就，实现更高质量发展，成为亮丽的'国家名片'和中国式现代化的生动缩 影。"中国铁路经济规划研究院规划研究所综合规划室主任于剑说。 目前，高铁已覆盖我国97%的城区人口50万以上城市，营业里程位居世界第1位，超过世界上其他国家 高铁营业里程总和，是世界上高铁运营时速最高的国家。 高铁飞驰，见证着中国创新能力的持续跃升。我国高速铁路技术整体达到世界领先水平，形成覆盖工程 建设、装备制造和运营管理的成套技术体系。 ...

Core Viewpoint - Spain has emerged as the second-largest high-speed rail power in the world, following China, showcasing a remarkable journey from obscurity to prominence in high-speed rail development [1][3][17] Development History - Spain's high-speed rail history is characterized by a significant transformation, moving from being a "nobody" to a key player in the global high-speed rail sector [3] - The decision to build a high-speed rail line in the late 1980s marked the beginning of Spain's high-speed rail journey, with a focus on connecting economically lagging regions [6][8] - Spain initially relied on foreign technology, particularly from France and Germany, to kickstart its high-speed rail development [6][8] Technological Advancements - Spain's commitment to high standards in speed and quality led to the development of its own high-speed trains, such as the Talgo350, which can reach speeds of 350 km/h [8][14] - The first high-speed rail line, connecting Madrid and Seville, was inaugurated in 1992, significantly enhancing Spain's international profile in high-speed rail [9][10] Network Expansion - The construction of high-speed rail lines in Spain has been strategically centered around major cities like Madrid, Barcelona, Valencia, and Seville, creating a comprehensive national network [10][12] - Despite a slowdown in construction in recent years, Spain is planning new high-speed rail projects, indicating ongoing potential for growth in this sector [12] Global Standing - In terms of total high-speed rail mileage, Spain ranks second globally, with a per capita high-speed rail mileage that surpasses that of China [14] - Spain's high-speed rail system is noted for its quality, with features that enhance passenger comfort, such as spacious seating and well-designed facilities [14][15] Conclusion - Spain's high-speed rail development, though starting later than some countries, has successfully transitioned from technology importation to independent innovation, establishing itself as a formidable player in the global high-speed rail industry [17]

Core Points - The new generation high-speed train "NextGen Acela" has finally commenced operations after several years of delays, but its speed improvement is minimal, with travel times remaining largely unchanged [1][2][4] - The new Acela operates on the heavily trafficked Northeast Corridor, covering the distance from Boston to Washington D.C. in approximately seven hours, which is only a slight improvement over the previous model [2][15] - Despite the delays, U.S. officials express enthusiasm for the new train, highlighting its significance for the future of American high-speed rail [4][19] Summary by Sections New High-Speed Train Launch - The "NextGen Acela" has started operations on the Northeast Corridor, with two daily round trips between Boston and Washington D.C. [2] - The project was initially announced over nine years ago, with multiple delays due to manufacturing defects and testing issues [2][4] Historical Context of U.S. Rail System - The U.S. once had a leading railway system, but post-World War II investments shifted focus to highways and aviation, leading to a decline in passenger rail services [5][6] - Amtrak was established in 1971 to rescue the failing passenger rail system, but it has faced financial challenges and limitations in service efficiency [6] Technical Aspects of the New Acela - The new Acela is based on French TGV technology, designed and built by Alstom, indicating a lack of domestic high-speed rail technology in the U.S. [7][11] - The train's operational speed is limited to 260 km/h due to outdated track conditions, which is only a slight increase from the previous model [13][15] Infrastructure Challenges - The Northeast Corridor's aging infrastructure and shared tracks with commuter and freight trains hinder the potential for true high-speed rail operations [11][15] - The new Acela's design includes modifications to accommodate the existing track conditions, but it still cannot match the performance of European high-speed trains [13][15] Demand and Future Plans - The Northeast Corridor is densely populated, making it a prime candidate for high-speed rail, with significant passenger demand [17][19] - Amtrak plans to invest $2.45 billion in upgrading stations and increasing track capacity in the Northeast Corridor [19] Comparison with Other Regions - California's high-speed rail project has faced significant delays and cost overruns, with the initial budget ballooning from $33 billion to estimates between $89 billion and $128 billion [24] - The Brightline service in Florida, while operational, has limited speed and travel time, highlighting the challenges of high-speed rail in the U.S. [26]

Core Insights - The article highlights the significant contributions of Feng Jianghua, the chief scientist of CRRC, in the development of China's high-speed rail technology, showcasing the evolution from the "Zhonghua Star" to the "Fuxing" train series [1][2][3] Group 1: Historical Development - In 1989, Feng Jianghua joined CRRC Zhuzhou Institute, contributing to the development of China's first independently designed high-speed train, "Zhonghua Star," which achieved a record speed of 321.5 km/h [1] - The 2004 approval of the "Medium- and Long-Term Railway Network Plan" by the State Council marked a pivotal moment for high-speed rail development in China, necessitating high-quality trains [2] Group 2: Technological Advancements - Feng Jianghua's team overcame significant challenges in core technologies, leading to the development of the "Harmony" train equipped with domestic power technology, breaking foreign monopolies [2] - The "Fuxing" train, launched in 2017, set a new benchmark in global high-speed rail with a commercial operating speed of 350 km/h [2][3] Group 3: Future Innovations - The CR450 technology innovation project initiated in 2021 aims for higher speed, safety, and sustainability in rail transport, with Feng Jianghua's team focusing on advanced permanent magnet traction technology [3][4] - The upcoming CR450 train, set to be unveiled in December 2024, represents another milestone in China's high-speed rail technology, reinforcing its global leadership [4]