Airline disruption management

Download
2014
Arıkan, Uğur
In this thesis, we deal with recovering airline operations in cases of irregularities. In schedule design phase, airlines generally generate tight schedules in order to efficiently utilize resources and deal with the high competition in the industry. However, irregularities in operations, also called disruptions, occur due to various reasons such as unscheduled aircraft maintenance, late appearance of crew members, bad weather conditions, congestions in airports, etc., and prevent the airline operate its original schedules. Airline Operations Control Centers (AOCC) are responsible for recovering the schedules of entities such as aircraft, crew members and passengers. These controllers are generally equipped with a set of recovery actions such as departure holding, flight cancellation and aircraft swapping. Due to the large size of airline networks, interdependencies between different entity types and real time solution requirement, integrated airline recovery problem is challenging. A common practice in the literature and industry is sequential approach which firstly recovers aircraft schedules and schedule recovery of the remaining entities are carried out accordingly. However, sequential approach results in high disruption and recovery costs. On the other hand, literature lacks from practical methodologies for the integrated airline recovery problem. We focus on the integrated problem in this thesis and propose a new network representation, exact approaches and heuristic approaches. Due to the increasing competition in industry, passenger convenience is attaining more and more importance. We also place a special emphasis on passenger recovery. Finally, we manage to integrate cruise speed control option in addition to the common recovery actions and our experiments have shown that speeding up flights is a very beneficial action to mitigate delays, create new swap opportunities and maintain passenger and crew connections.

Suggestions

A risk-sensitive approach for airline network revenue management problems
Çetiner, Demet; Köksalan, Murat; Department of Industrial Engineering (2007)
In this thesis, airline network revenue management problem is considered for the case with no cancellations and overbooking. In literature, there exist several approximate probabilistic and deterministic mathematical models developed in order to maximize expected revenue at the end of the reservation period. The aim of this study is to develop models considering also the risks involved in the proposed booking control policies. Two linear programming models are proposed which incorporate the variance of the ...
Dynamic pricing for airline revenue management problem with cancellation possibility
Selçuk, Ahmet Melih; Avşar, Zeynep Müge; Department of Operational Research (2014)
In this study, dynamic pricing methods are developed for airline revenue management problem. The bookings for a particular flight are considered in two classes as restricted and flexible bookings representing whether the buyer can claim a refund in case of a cancellation. The different classes of bookings are considered for the same inventory to be sold at different prices. For pricing the restricted bookings, the principle ideas in revenue management literature are adopted to maximize revenues by managing ...
Dynamic approach to wind sensitive optimum cruise phase flight planning
Yıldız, Güray; Kayalıgil, Sinan; Department of Operational Research (2012)
A Flight Management System (FMS) performs 4 Dimensional flight planning; Lateral Planning (Calculation of the latitude and longitudes of waypoints), Vertical Planning (Calculation of the altitudes of waypoints) and Temporal Planning(Calculation of Estimated Time of Arrival). Correct and accurate calculation of4D flight path and then guiding the pilot/airplane to track the route in specified accuracy limits in terms of lateral (i.e Required Navigational Performance RNP), vertical (Reduced Vertical Seperation...
Service models for airline revenue management problems
Eroğlu, Fatma Esra; Avşar, Zeynep Müge; Department of Industrial Engineering (2011)
In this thesis, the seat inventory control problem is studied for airlines from the perspective of a risk-averse decision maker. There are only a few studies in the revenue management literature that consider the risk factor. Most of the studies aim at finding the optimal seat allocations while maximizing the expected revenue and do not take the variability of the revenue and hence a risk measure into account. This study aims to decrease the variance of the revenue by increasing the capacity utilization cal...
Aircraft motion dynamics and lateral trajectory tracking algorithm design for the enhancement of flight safety
Günhan, Cahide Yeliz; Demirbaş, Kerim; Department of Electrical and Electronics Engineering (2018)
This thesis aspires to cover the fundamentals of an aircraft control for Flight Management System (FMS). FMS, trajectory tracking and performance requirements of a flight are the focal points of the thesis. In view of this, the thesis consists of the outlined components to achieve its goal; (i) generating paths - which denotes the creation of reference paths for trajectory by complying with the avionic performance standardizations, (ii) controlling the aircraft – which propagates the control commands by usi...
Citation Formats
U. Arıkan, “Airline disruption management,” Ph.D. - Doctoral Program, Middle East Technical University, 2014.