Definitions - Continued

DOE-STD-3014-96

Aircraft Subcategory: The most detailed level of classification used in this standard for aircraft

and aviation. For use in performing the specified analyses, the aircraft categories are divided

into subcategories that consist of aircraft types having similar physical characteristics and

distributions of crash parameters.

Aircraft Type: As defined by the FAA and used in this standard, a specific make and basic

model of aircraft.

Airport: As defined by the FAA, an area of land or water that is used or intended to be used for

the landing and takeoff of aircraft. This includes any buildings or facilities on the area.

Airport Operation: As defined by the FAA, the number of arrivals and departures from the

airport at which the airport traffic control tower is located. There are two types of airport

operations, local and itinerant. Local operations are those performed by aircraft that (1) operate

in the local traffic pattern or within sight of the airport; (2) depart for or arrive from flight in

practice areas located within a 37-km (20-mile [assuming nautical miles]) radius of the airport; or

(3) execute simulated instrument approaches or low passes at the airport. All aircraft operations

other than local operations are itinerant operations.

ARTCC: Air Route Traffic Control Center.

Barrier: A building, structural component, or object (e.g., equipment) that has the potential to

prevent a missile from impacting a target, or to mitigate the effects of a missile impacting a

target.

Certificated Air Carrier: As defined by the FAA, an air carrier holding a Certificate of Public

Convenience and Necessity issued by the U.S. Department of Transportation (DOT) to conduct

scheduled services interstate. Nonscheduled or charter operations may also be conducted by

these carriers. Certificated air carriers operate large aircraft (30 seats or more or a maximum

payload of 3401 kg [7,500 lb] or more) in accordance with 14 CFR 121.

Commercial Aviation: For the purpose of this standard, any aircraft activity performed under

14 CFR Parts 121, 125, 127, and 135.