Abstract:The objective of this study is to provide a theoretical basis for whether the wind direction and speed at the same end of close - proximity parallel double runways can be used as references for each other, and to expect that when the automatic observation equipment at a measurement point in the airport fails and real - time wind data cannot be obtained, the wind direction and speed data from the automatic observation station at the other measurement point at the same end can be provided as an emergency reference and achieve the goal of maintaining operational standards without degradation. Using the surface wind data from Guiyang Longdongbao Airport from December 2021 to April 2024, and conventional statistical methods, we discuss the statistical differences in surface wind directions and speeds between the north end of the west runway (19R) and the north end of the east runway (19L), the middle of the west runway (MID1) and the middle of the east runway (MID2), as well as the south end of the west runway (01L) and the south end of the east runway (01R). Additionally, the consistency of crosswind and tailwind meeting operational standards at each end is analyzed. The results show that: (1) The wind directions and speeds at the same end of the double runways at Guiyang Airport have a good consistency in the overall distribution pattern. (2) The wind data at the same end of the runways has a high probability of meeting the same operational conditions, especially when the surface wind at the airport meets the standards for tailwind and crosswind, the mutual referenceability of wind data at the same end of the runways is even higher. (3) In very few cases, such as when a severe convective weather system passes through, the afternoon thermal low develops or the evening thermal low weakens, the simultaneous surface wind data at the same end of the two runways may show significant differences. In such cases, it is not recommended to use the wind data at the same end of the runways as references for each other. Overall, in practical operations, it is feasible to a certain extent to use the surface wind direction and speed data at the same end of the two runways at Guiyang Longdongbao Airport as references for each other.