今年首个"市市通高铁"的省份来了，这次在东北。 几天前，沈白高铁开始模拟载客试运行。沈白高铁正线起自沈阳北站，沿线经辽宁省沈阳市、抚顺市，吉林省通化市、白山市、延边朝鲜族自治州等5个 地市（州），终至长白山站，全长约430公里，设计时速350公里。 对于辽宁来说，抚顺是省内唯一不通高铁的城市，随着沈白高铁建成通车，辽宁将成为全国第11个、东北首个"市市通高铁"的省份。对于吉林来说，通 化、白山也将成为省内首次接入全国高铁网的地级市。 就在前两天（9月8日至9日），吉林省委副书记、省长胡玉亭添乘检查沈白高铁通化至长白山段开通准备工作，并表示要锚定9月28日开通的时间节点，确 保按期投入使用、发挥效用。 要知道，在普铁时代，东北不仅是先行者，也是大赢家，是国内铁路网密度最高的地区之一。但进入高铁时代，东北似乎"慢"了下来。 近期东北还有多条高铁传来新消息，辽宁之后，谁会是下一个东北"市市通高铁"的省份？东北高铁建设逐渐找回"速度"，又将产生哪些影响？ 一、慢了？ 火车一响，黄金万两。东北对此的体会尤其深刻。 可以说，铁路的出现让整个东北的城市格局重新洗牌，东北四大城市中，哈尔滨、长春堪称"被火车拉来的城市"，而沈 ...

Core Viewpoint - The opening of the Shenyang-Baihe High-Speed Railway (沈白高铁) marks the first province in Northeast China to achieve "city-to-city high-speed rail" connectivity, enhancing regional transportation and economic integration [1][8]. Group 1: High-Speed Rail Development in Northeast China - The Shenyang-Baihe High-Speed Railway spans approximately 430 kilometers with a design speed of 350 km/h, connecting five cities in Liaoning and Jilin provinces [1][8]. - With the completion of the Shenyang-Baihe High-Speed Railway, Liaoning will become the 11th province in China to achieve "city-to-city high-speed rail" connectivity, while Jilin will see its first cities integrated into the national high-speed rail network [1][6]. - The railway is expected to significantly reduce travel times, with the shortest journey from Beijing to Changbai Mountain taking approximately 4 hours and 33 minutes, and from Shenyang to Changbai Mountain taking about 1 hour and 53 minutes [8][12]. Group 2: Economic Implications - The Shenyang-Baihe High-Speed Railway is anticipated to transport around 11 million tourists annually, boosting local economies, particularly in the hospitality and service sectors [12][13]. - The railway will facilitate the integration of various industries along the route, including heavy industry in Harbin, automotive in Changchun, and high-tech in Dalian, promoting regional economic collaboration [11][12]. - The opening of the railway is seen as a "economic revitalization line," with significant potential for enhancing investment attraction from Beijing and facilitating industrial transfers [12][13]. Group 3: Challenges and Future Developments - Northeast China's high-speed rail development has faced challenges due to unique geological conditions, such as high bridge-tunnel ratios and extreme winter weather, which complicate construction [7][11]. - The region's economic viability for high-speed rail projects is under scrutiny, as local governments face debt pressures, impacting the feasibility of large-scale infrastructure projects [7][11]. - Future projects, such as the Mudanjiang-Dunhua Railway and the Qiqihar-Tongliao Railway, are in the planning stages, indicating a renewed focus on expanding the high-speed rail network in Northeast China [14][16].