12月1日9时整,随着哈尔滨西站、长春站、沈阳北站、大连北站四站动车同时首发,哈尔滨—大连高速铁路正式开通运营。哈大高铁是我国“四纵四横”快速铁路网京哈高铁的重要组成部分,营业里程921 km,设计时速350 km。哈大高铁纵贯辽宁、吉林、黑龙江三省,全线设23个车站,分别为 At 9:00 on December 1, Harbin-Dalian High Speed ​​Railway was officially opened and operated as the four stations of Harbin West Railway Station, Changchun Railway Station, Shenyang North Railway Station and Dalian North Railway Station started simultaneously. Harbin-Dalian High Speed ​​Rail is an important part of Jingha High Speed ​​Rail in China’s “four vertical and four horizontal” express railway network with an operating mileage of 921 km and a design speed of 350 km per hour. Harbin-Dalian high-speed rail runs through Liaoning, Jilin, Heilongjiang provinces, across the board set up 23 stations, respectively