ABSTRACT
The main problem facing air carriers is that of coordinating transportation facilities and passenger demand. An entire range of highly disparate factors are involved in this coordination which is much more complex on an entire airline network than on individual routes. The output of coordinating transportation facilities and passenger demand is a daily and weekly flight schedule on different routes and a corresponding departure schedule during the day. Flight frequency on individual routes and airplane departure schedules are a function of both the size and distribution of passenger demand during the day, week and month, and of the organizational-technical facilities of the air carrier. The air carrier's organizational-technical facilities include the number of different types of aircraft in the fleet, the number and professional level of the flight, technical and commercial personnel, technical base facilities, the 82reservation system, etc. An entire range of problems arises when coordinating transportation facilities and passenger demand comprised, in addition to determining flight frequency and departure times, of rotating aircraft in the network, planning fleet maintenance, planning crew schedules, etc.
