1.   ...the problem of scaring birds away from airport runways.

2.   Aviation experts said that, under ordinary circumstances, airplanes will not enter the zone over an airport runway without approval from the control tower.

3.   A keen observer of postwar industrial culture, Smithson preferred sites like abandoned quarries or gigantic airport runways to the untouched backdrops favored by other earthworks artists.

4.   Business travelers accustomed to trudging across airport runways and up metal staircases to board turboprop jets are beginning to get relief at some midwestern airports.

5.   But the airport runways were not completely visible from the tower.

6.   Cars racing on airport runways or at New England Dragway.

7.   By this point, the film appears to have run out of steam, especially when it attempts a dopey action finale on an airport runway.

8.   Food and other goods have been loaded onto flatbed trucks lining the narrow road near the airport runway each day.

9.   Gore held a rally here, near Knoxville, on the airport runway, with Air Force Two in the background and airplanes coming and going.

10.   He muffed the drive for a new Logan airport runway.