Group 1 - The Beijing-Shenyang High-Speed Railway (京沈高铁) will officially start operations on July 1, with a maximum speed of 350 km/h, reducing travel time from Shenyang to Beijing to 2 hours and 29 minutes [1] - The total length of the Beijing-Shenyang High-Speed Railway is 708 kilometers, making it the first safety standard demonstration line in Northeast China [1] - The new railway will enhance connectivity between cities along the route and inject new momentum into the economic and social development of the region [1] Group 2 - Travel times from Beijing to cities like Tieling, Siping, and Benxi will be significantly reduced, with reductions of 44 minutes, 53 minutes, and 67 minutes respectively [2] - The introduction of the new CR400BF-GS intelligent trainsets will increase the standard capacity from 578 to 619 passengers [2] - The total number of scheduled passenger trains will increase by 22 to 907, while scheduled freight trains will total 2530, improving overall transport capacity and service quality [2] Group 3 - The adjustment of the Beijing-Harbin High-Speed Railway (京哈高铁) will see an increase in express trains from 16 pairs to 28 pairs, with specific increases in the Shenyang, Dalian, and Dandong regions [3] - New intercity passenger trains will be added, with adjustments to the running segments of certain trains [3]