The Changsha Airport reconstruction and expansion project of T3 terminal project has a construction area of approximately 500,000 square meters, an east-west length of approximately 1,000 meters, and a north-south length of approximately 1,200 meters. The main building height is 44.65 meters, and the apron is planned to have approximately 75 aircraft seats, which can meet the annual passenger throughput of 40 million.