Changes

An '''''Airport''''' is a destination of starting point for [[airplane]]s to take off and land. According to the [[CIA]] world fact book, the [[United States]] has over 14,000 airports.  

An '''''Airport''''' is a destination of starting point for [[airplane]]s to take off and land. According to the [[CIA]] world fact book, the [[United States]] has over 14,000 airports. The runway(s) may be paved (concrete or asphalt surfaces) or unpaved (grass, earth, sand, or gravel surfaces) but may include closed or abandoned installations. Airports or airfields that are no longer recognizable (overgrown, no facilities, etc.) are not included. Note that not all airports have accommodations for refueling, maintenance, or air traffic control.

[[Category:transportation]]

[[Category:transportation]]