published_or_final_version / Psychology / Master / Master of Philosophy

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 99-101). Also available via the Internet.

Thesis (Ph. D.)--Aerospace Engineering, Georgia Institute of Technology, 2008. / Committee Chair: Pritchett, Amy; Committee Co-Chair: Feron, Eric; Committee Member: Clarke, John-Paul; Committee Member: Tsiotras, Panagiotis; Committee Member: Yang, Bong-Jun

Thesis (Ph. D.)--University of Wisconsin--Madison, 1958. / Typescript. Abstracted in Dissertation abstracts, v. 19 (1959) no. 8, p. 2188-2189. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves [144]-166).

The limitations in en-route Air Traffic Control today are generally accepted as being the workload and performance of the controller. This method of operation is known as the 'manual control process'. The manual control process is an open loop form of control, that relies heavily on controller judgement and decision making. Future developments in ATC, that use twoway datalink, and integrate air and ground systems, are expected to be delayed. This leaves the manual control process to manage the projected growth in air transport demand. An analysis was carried out of the manual control process on two sectors at the London Area & Terminal Control Centre at West Drayton. Particular attention was given to understanding complexity, the functions that controllers perform, decision making and information sources. A systems approach was taken to the analysis and used multidisciplinary research techniques. The study used naturalistic data collection. Both the ground and airborne systems were reviewed, and developments found within them, that can benefit the control process. An analysis of incidents in en-route ATC was also conducted. Proposals are made that can support an enhanced control process. These were modelled, and the results indicated that reductions in controller workload are attainable. The changes to the control process involve more close control of the vertical plane, and improved and more precise information being made available to the controller. It is suggested that aircraft flight management systems are used as a control tool, and system requirements are proposed.

A research report submitted to the Faculty of Humanities University of the Witwatersrand In partial fulfillment of the requirements for the degree of Masters of Arts by coursework and research report in Organisational Psychology Submitted for examination March 2015 / and most efficient way possible. Air traffic controllers perform complex tasks, some of which involve the analysis of visual inputs. The primary aim of this study was to examine whether there is a relationship between visual analysis and performance during the first training course attended by aspiring controllers. The main sample consisted of fifty-one trainees. An additional twenty-five qualified controllers also completed the visual analysis exercises. Visual analysis was assessed using ScreenX and SAMAE’s Scanning and Division of Attention exercises from Leaderware. The Core Content course reports were used as a measure of performance for trainees. Correlations and regressions were performed. The main results showed that the visual analysis scores were related to performance on ten of the fifteen subjects covered during the Core Content course and the overall course average. These findings have implications for the selection of trainees. Secondary analyses found significant differences in the visual analysis abilities of trainees and qualified controllers / MT2016

Due to projectedincrea ses in air traffic, there are several research efforts underway to evaluate ways to safely increase the capacity of the National Airspace System (NAS), improve operational efficiency, andre duce aircraft noise. At NASA Langley Research Center (LaRC) in Hampton, Virginia, two parallel research efforts have focusedon terminal area research: one is Airborne Precision Spacing (APS), and the other is the Quiet Aircraft Technologies (QAT) project. The APS objective is to increase terminal-area capacity without adversely affecting safety, whereas the QAT project objective is to develop noise- and fuel-efficient approach trajectories. The APS project developed a cockpit tool, called Airborne Merging and Spacing for Terminal Arrivals (AMSTAR), that issues speedco mmands to aircraft to maintain desired spacing between aircraft pairs. The APS studies showed an ability to increase runway capacity; however, capacity increases may negatively impact noise andemissio n levels in airport areas. The QAT project created efficient Continuous Descent Approaches (CDAs), which showedred uctions in aircraft ground noise and fuel consumption. Previous research has shown that CDA trajectories have adverse effects on runway capacity because aircraft must be spacedf urther apart at long distances from the runway to prevent separation losses at the runway threshold. To date, the APS and CDA concepts have been evaluated independently at LaRC.In this study, three different approaches to combining APS and CDA operations were evaluatedto determine the feasibility and benefits of combining these concepts. These methods combined AMSTAR with 3◦-flight-path-angle-CDA approach routes, 3◦-CDA routes with spoilers, and2 ◦-CDA routes without spoilers. Adding the use of spoilers allowedf aster responses to large speedr eductions issued by AMSTAR. This improvement was contrastedwith the effects of a shallower flight-path angle for greater deceleration capabilities. This research indicated that AMSTAR improved the performance of CDA operations, although full capacity improvements were not achieved. Whereas the 2◦-CDA routes were expectedto show the best results, the 3◦-CDA case with spoilers showed the least variability in thresholdspacing errors. All of the CDA routes were more noise, fuel, and time efficient than traditional step-descent routes that are commonly usedto day.

Thesis (M.S.)--Naval Postgraduate School, 2002. / Thesis advisor(s): Rudolph P. Darken, Joseph A. Sullivan. Includes bibliographical references (p. 41). Also available online.

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Thesis (Ph.D. (Curriculum Studies)) -- University of Pretoria, 2006.