关键词: |
air transportation,aviation/travel demand, passenger transportation, market, airports, air traffic control, aviation safety, aircraft, concrete pavements, helicopters, aviation accidents, air cargo, forecasting, surveys/ |
摘要: |
This document presents the transportation research record on aviation, including travel demand, passenger transportation; airports; air traffic control; concrete pavements; and helicopter accidents. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |