Airline schedule development continues to remain one of the most challenging planning activity for any airline. An airline schedule comprises of a list of flights and specifies the origin, destination, scheduled departure, and arrival time of each flight in the airline’s network. A critical component of the schedule development activity is the choice of flight block-times, which depend on sever...

The airline crew pairing problem (CPP) is one of the classical problems in airline operations research due to its crucial impact on the cost structure of an airline. Moreover, the complex crew regulations and the large scale of the resulting mathematical programming models have rendered it an academically interesting problem over decades. The CPP is a tactical problem, typically solved over a m...

In recent years, considerable effort in the field of operations research has been paid to optimizing airline operations, including the logistics of an airline’s fleet of aircraft. We focus on the problem of aircraft routing, which involves generating and selecting a particular route for each aircraft of a sub-fleet that is already assigned to a set of feasible sequences of flight legs. Similar ...

In the past decade, major airlines in the U.S. have moved from banked hub-and-spoke operations to de-banked hub-and-spoke operations to lower operating costs. In [1], it is shown that dynamic airline scheduling, an approach that makes minor adjustments to flight schedules in the booking period by re-fleeting and re-timing flight legs, can significantly improve utilization of capacity and hence ...

Aircraft maintenance planning and scheduling constitute planning, control and execution of materials (spare parts), operations (inspection, disassembly and assembly activities) and resources (labour, machines, transport equipment, etc.). This is a complex problem due to large number of components involved at various planning and execution levels, and the size/nature of resource-intensive mainte...

Simulation as a tool pervades many businesses and industries, ranging from the medical and health environment to heavy industry, engineering, engineering design and training support. Simulation contributes significantly to training but also has an important role to play in 'fulfilling the promise' of business supporting decision analysis. The ability to investigate the likely outcomes and impac...

Accurate and timely predictions of airline pushbacks can potentially lead to improved performance of automated decision-support tools for airport surface traffic, thus reducing the variability and average duration of costly airline delays. One factor which affects the realization of these benefits is the level of uncertainty inherent in the turn processes. To characterize this inherent uncertai...

In recent years, considerable effort in the field of operations research has been paid to optimizing airline operations, including the logistics of an airline’s fleet of aircraft. We focus on the problem of aircraft routing, which involves generating and selecting a particular route for each aircraft of a sub-fleet that is already assigned to a set of feasible sequences of flight legs. Similar ...

Two approaches for the implementation of a suite of cockpit navigation displays designed to increase the safety and efficiency of surface operations were developed and compared in NASA Ames’ high-fidelity Advanced Concept Flight Simulator (ACFS). Eighteen airline crews completed fourteen low-visibility (RVR 1000’) land-and-taxi scenarios at a simulated Chicago O’Hare airport. An evolutionary im...

Abstract The 2022 Southwest Airline Scheduling Crisis, resulting in approximately 15,000 flight cancellations, demonstrates the challenges of structuring infrastructure systems and their knowledge-making processes for increasingly disruptive conditions. While point-to-point configuration was focus immediate assessments failure, it became rapidly evident that crew-assignment software unable to o...