摘要: |
More than 5,000 airports are open for public use in the United States. They range in size from small GA airports handling a few airplanes per day to large commercial-service airports handling hundreds of aircraft and thousands of passengers per hour. Together they form the national airport system, which is a key element of the nations air transportation system. Nevertheless, they are very much a collection of autonomous entities mostly owned and operated by local governments. Recognizing the importance of airports in the national airspace system, the federal government regulates many aspects of their operations and provides them with funds for capital improvements. Airports are thus subject to many national requirements and standards governing their design, operations, safety performance, security, and finances. Airports are also subject to national environmental regulations. Hence, airport operators have much in common with one another and face many of the same problems and research needs. However, they lack a way to address these shared problems and needs that balances the many separateand sometimes conflicting requirements that they face. Through FAA, NASA, and other agencies, the federal government sponsors and performs research related to airports. With the advent of TSA, additional research related to airport securityand thus to facility design and planning can be expected. |