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International air transport has grown at a staggering rate over the last 50 years and the industry which supports it, now bears little resemblance to that which existed even twenty-five years ago. As the number of operators and the size of their respective fleets have increased, so too have the pressures on the infrastructure which support them. Particularly affected are the major airports where runway, apron and terminal capacity are limited. Unlike other elements of the aviation infrastructure, airport capacity is physically constrained and therefore capacity increases can only be obtained through further development or through more efficient uses of existing resources. As the first option is politically controversial and the latter only provides for incremental increases, the air transport industry, through IATA, has developed an allocation mechanism to distribute available capacity based on historic precedence. This thesis reviews the main issues surrounding the current regime. (Abstract shortened by UMI.)

Thesis (M.S.)--Ohio University, June, 2003. / Title from PDF t.p.

Thesis (Ph. D.)--University of Washington, 2004. / Vita. Includes bibliographical references (p. 89-95).

Thesis--Auburn University, 2009. / Abstract. Vita. Includes bibliographical references (p. 95-97).

Thesis (M.S.)--Worcester Polytechnic Institute. / Keywords: visual; clutter; measurement; reduction; information; visualization; air traffic. Includes bibliographical references. (p.64-66)

Radiotelephony between air traffic controllers and pilots utilises standard phraseology as the medium of communications. Standard phraseology employs specific structure, terminology and pronunciation to ensure effectiveness and accuracy. On occasions when standard phraseology is found insufficient, plain language is used to efficiently relay vital information. By default, English is the designated language of communication between controllers and pilots of international flights. Deviations from the usage of standard phraseology and lack of language proficiency had been identified as one of the causal factors in safety occurrences. Language deficiencies, specifically of the non-native speakers of the English language, had raised much concern but there is limited information in the area. This research attempted to fill a small segment of this knowledge gap. It was focussed on the usage of standard phraseology and English language in an air traffic control environment involving English Second Language users. Audio data was sourced from routine radiotelephony recordings of ‘live’ air traffic control facilities in Malaysia to capture realistic communications between controllers and pilots in the Terminal Approach Radar, Area Radar and Aerodrome Control environments. A detailed cross sectional investigation of the radiotelephony characteristics, deficiencies and errors of transmitted messages revealed the radiotelephony performances of controllers and pilots in the environments. The recurrence of deviations from standards and occurrence of errors implied the likelihood of such deficiencies taking place. Demographic groups’ descriptions complemented the radiotelephony analyses as background information on language related training. The results were comparative to other similar studies and offered new information on English Second Language speakers in the Air Traffic Control environment.

abstract: This study examined the impact of Situation Presence Assessment Method (SPAM) administration on air traffic control (ATC) students’ task workload and performance in high-fidelity ATC simulations. ATC students performed high-fidelity en-route simulations in two conditions: baseline conditions (without SPAM questions) and SPAM conditions. The data collected show that while workload in the two conditions were not significantly different, there was a trend of higher mental workload in SPAM conditions than in baseline conditions. Performance immediately following SPAM questions was revealed to be poorer than that preceding the SPAM questions and that over the equivalent time periods in the baseline conditions. The results suggest that a "Ready" signal before a SPAM question may not be enough to eliminate the impact of SPAM administration on ATC students’ workload and performance in high-fidelity en-route simulations. / Dissertation/Thesis / Masters Thesis Technology 2016

M.Sc. / This thesis investigates how intelligent agents can be used to solve airline scheduling problems. It is divided into three parts. The first states what airline scheduling consists of; the second discusses the results of a literature study; and the third consists of solutions to the problem. Airline scheduling consists of three major activities viz. market-driven flight generation, crew assignment and operational problem management. The market schedulers first create a flight set based on a forecast of passenger numbers and passenger preferences. The crew schedulers attempt to crew the flights generated by the market schedulers (subject to safety and rest regulations). The operational schedulers maintain the flights from seven days prior to the day of operation to one day after the end of the flight. Finding a global solution to this three-phase operation is the airline scheduling problem. An agent-based solution to the airline scheduling problem was the focus of this thesis. Agents encapsulate many useful artificial intelligence solution strategies. For the proposed solution to the market driven scheduling problem a distributed negotiation scheme using agents was used. A routing and an assignment agent were defined to assist the crew scheduler. Finally an operational scheduling agent was defined to solve the operational scheduling problem. The routing and assignment agents make use of FIFOqueues and genetic algorithms. The operational scheduling agent makes use of a traditional expert system combined with a learning algorithm to give it more flexibility. A prototype, developed in Java, was used to demonstrate how agents could solve the market driven scheduling problem. This distributed negotiation scheme was implemented on Sun SPARC workstations running the Solaris operating system. A prototype developed in Delphi was also developed to show how learning algorithms could be applied to the scheduling environment.

The aim of this study was to determine level of work stress in a group of air traffic controllers from the South African Air Force, and also a group of air traffic controllers from the civil sector. It is commonly known that air traffic control is considered a stressful job, and the researcher decided to examine the situation in South Africa. Stressors which may be applicable to the air traffic controller were discussed, to help the controller to identify his source of stress. The air traffic control job was also studied to identify its stressful elements. The research group consisted of 97 persons, 52 from the SAAF, and 45 from the civil sector. Most of them were in the age group of 19-25 years. Rice's Stress&Health questionnaire was used to determine the respondents' stress levels in three sub-categories. These sub-categories were interpersonal stress, physical stress, and job interest. The results show that civil sector controllers experience a higher level of work stress than their colleagues in the SAAF. This is because of the civil sector's higher workload. Results show that the factors influencing stress are complex and include amount of workload and personality type. Proposals were made with regard to stress management. / Thesis (MCom)--University of Pretoria, 2004. / Human Resource Management / unrestricted