Airplanes must take off and land into the wind. The primary wind direction at Centennial Airport is from the north and south, and the primary sets of runways are oriented accordingly. About 55 percent of the traffic at Centennial Airport takes off to the south, and the remainder takes off to the north. What areas experience the greatest amount of aircraft over flights?

The areas immediately north and south of the airport experience very high volumes of aircraft traffic. Almost 90 percent of Centennial’s traffic (356,560 operations in 2004) use the north/south runways. A number of smaller aircraft use the east/west crosswind runway as a means to keep separation from the larger jet traffic. Areas directly east of the airport are impacted by these operations.