Core Points - The completion of the industry acceptance and compliance inspection for the new South Second Runway at Xi'an Xianyang International Airport marks a significant milestone in the Phase III expansion project, laying a solid foundation for the airport's "three-runway" operation [1][5] - The South Second Runway, measuring 3000 meters in length and 45 meters in width, is designed to accommodate large aircraft such as the Airbus A380, reflecting a strategic foresight in anticipating long-term growth in air traffic demand in the Northwest region [2][3] - With the operation of three runways, Xi'an Xianyang International Airport will become the first airport in Northwest China to operate three runways simultaneously, significantly enhancing flight takeoff and landing efficiency and increasing peak hour takeoff and landing capacity by over 30% [3][4] - The Phase III expansion project is the largest infrastructure development in the history of civil aviation in Northwest China, aimed at supporting regional economic development and enhancing the airport's role as a key aviation hub in the "Belt and Road" initiative [4][5] - Once fully completed, the airport will feature four runways and four terminals, with an annual passenger capacity projected to reach 83 million, positioning it as a critical platform for the flow of people, goods, and information [4][5]