Group 1 - The opening of the Xiangyang-Jingmen high-speed railway on September 28 significantly reduces travel time from approximately 90 minutes to about 30 minutes, marking the formation of Hubei's first high-speed rail loop [3] - The Baoyin high-speed railway's Baotou to Huinong section has entered the trial operation phase, with a total length of about 420 kilometers and a design speed of 250 kilometers per hour, reducing travel time from Baotou to Yinchuan from 6 hours to under 3 hours [8] - The G331 highway in Jilin province has been fully opened, creating a 1314-kilometer border tourism corridor that connects 10 counties and 214 border villages [12] Group 2 - The opening of the Ruijin Airport on September 28 introduces direct flights to Beijing and Shanghai, with a capacity to handle 550,000 passengers and 2000 tons of cargo annually, enhancing travel options for the region [15] - The Shenzhen Metro's new lines, including the second phase of Line 16 and the second phase of Line 6, have increased the total operational mileage to 609.6 kilometers, promoting regional connectivity [17] - The completion of the Huajiang Canyon Bridge on September 28, which is the world's highest and longest span bridge in mountainous areas, reduces travel time between two counties from 2 hours to approximately 2 minutes [20][22] Group 3 - The opening of the Shenyang to Changbai Mountain high-speed railway on September 28 connects 14 cities in Liaoning province to high-speed rail, with a total length of 430 kilometers and a design speed of 350 kilometers per hour [42] - The Shenyang-Changbai high-speed railway is a key project under the national "14th Five-Year Plan," enhancing connectivity between Northeast China and the Beijing-Tianjin-Hebei region [42] - The railway's construction utilized advanced technologies and equipment to address challenges posed by the harsh winter conditions and complex terrain [46]