This paper explores the inherent delays of airline schedules resulting from limited buffer times and stochastic disruptions in airline operations. The reliability of airline schedules is discussed and a set of measuring indices is developed to evaluate schedule reliability. It is found that significant gaps exist between the real operating delays, the inherent delays (from simulation) and the z...

An airline schedule very rarely operates as planned. Problems related with aircrafts, crew members and passengers are common and the actions towards the solution of these problems are usually known as operations recovery or disruption management. The Airline Operations Control Center (AOCC) tries to solve these problems with the minimum impact in the airline schedule, with the minimum cost and,...

Airports are important infra-structures for the air transportation business. One of the major operational constraints is the peaks of passengers in specific periods of time. Airline companies take into consideration the airport capacity when building the airline schedule and, because of that, the execution of the airline operational plan can contribute to improve or avoid airport peaks problems...

SIMAIR is a C++ based research tool meant for the simulation of airline operations. It provides a means for devising and evaluating various airline recovery mechanisms to handle disruptions, and can also be used as a tool to evaluate the performance of a given schedule of operations. The performance of a given recovery mechanism can be quantified for research and evaluation purposes.

Within the airline, any disturbance to normal operations has a dramatic impact, and usually imposes high additional costs. Because of irregular events during daily operations. When disruptions occur, flight schedules are affected due to the resulting infeasible flight schedule and improper assignments. Therefore, airlines need to recover disrupted schedule as soon as possible and minimize the e...

The Airline Operations Control Centre (AOCC) tries to solve unexpected problems during the airline operation. Problems with aircraft, crewmembers and passengers are common and very hard to solve due to the several variables involved. This paper presents the implementation of a realworld multi-agent system for operations recovery in an airline company. The analysis and design of the system was d...

Plans for NextGen include the implementation of Net-Centric Operations (NCO) as the underlying mechanism to more effectively manage National Air Transportation System (NAS) resources. NCO mechanisms will provide the means for all agents operating in the NAS to self-synchronize in the presence of changing situations and probabilistic forecasts. Applications of NCO in other domains (e.g. military...

Decision makers in air transportation face many uncertainties. In spite of this, airline planning models do not explicitly consider uncertainty in operations. As a result, there is often a notable discrepancy between an airline’s planned and actual performance. We present a stochastic model of the daily operations of a domestic airline. Its primary purpose is to evaluate plans, such as crew sch...