facility used primarily by conventional, fixed-wing aircraft. (3) A facility , either on land or water ,where aircraft can take off and land .Usually consists of hard-surfaced landing strips, a control tower, hangars and accommodation for passengers and cargo. (4) A landing area regularly used by aircraft for receiving discharging passengers or cargo.
alternative fuels
Low –polluting fuels used to propel a vehicle instead of hight - sulfur diesel or gasoline. Examples includes methanol, ethanol, propane or compressed natural gas, liquid natural gas, low-sulfur or clean diesel and electricity.
Amtark
Operated by the National Railroad Passenger Corporation of Washington , DC. This rail system was created by Presidant Nixon in 1970, and was given responsibility for the operation of intercity, as distinct from suburban , passenger trains between points designated by the Secretary of Transportation.
Arterial street
A major thoroughfare, used primarily for through traffic rather than for access to adjacent land, that is characterized by high vehicular capacity and continuity of movement.
Association of Southeast Asian Nations (ASEAN)