Group 1 - The Liao-Han-Chang high-speed railway is a crucial segment in the transportation planning of Shandong, Hebei, and Shanxi provinces, enhancing transportation convenience and regional economic development [1] - The Liao-Han-Chang high-speed railway serves as an essential western extension of the Shandong Central High-speed Railway corridor, facilitating a strong connection between eastern coastal cities and the central and western inland regions [1] - The integration of the Liao-Han-Chang high-speed railway with the Shandong Central High-speed Railway corridor provides new opportunities for optimizing industrial layout in Shandong, particularly in the resource-rich central region [1] Group 2 - The combination of the Liao-Han-Chang high-speed railway and the Shandong Central High-speed Railway will create a unique tourism corridor by linking various scattered tourist attractions [2] - The construction of the Yellow River high-speed railway corridor has made significant progress, with the Jinan-Zhengzhou high-speed railway being a key line that connects major urban circles [2] - The Liao-Han-Chang high-speed railway plays an irreplaceable role in the planning of the Shandong Central and Yellow River high-speed railway corridors, promoting new breakthroughs in regional connectivity and industrial collaboration [2]