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5 - A Domain Analysis of Air Traffic Management Work can be Used to Rationalise Interface Design Issues

Published online by Cambridge University Press:  04 August 2010

Gilbert Cockton
Affiliation:
University of Glasgow
Stephen Draper
Affiliation:
University of Glasgow
George R. S. Weir
Affiliation:
University of Strathclyde
John Dowell
Affiliation:
Ergonomics and HCI Unit, University College London, 26 Bedford Way, London WC1H 0AP, UK
Ian Salter
Affiliation:
Ergonomics and HCI Unit, University College London, 26 Bedford Way, London WC1H 0AP, UK
Solaleh Zekrullahi
Affiliation:
Ergonomics and HCI Unit, University College London, 26 Bedford Way, London WC1H 0AP, UK
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Summary

The demand for a more effective Air Traffic Management system, and the central role of the controller in that system, has focused attention on the design of the controller's interface. This paper presents an analysis of the task domain of Air Traffic Management. It demonstrates with a simulated system how the domain analysis can be used to model the controller's performance in the traffic management task. The use of this model in rationalising interface design issues is then illustrated. The analysis supports the general case for explicitly capturing the task domain in interface design.

Keywords: task domain, domain analysis, air traffic management, task quality, interface design.

The Need for Analysis of the Air Traffic Management Task Domain

The Operational Issue in Air Traffic Management

Increases in the volume of air traffic have consistently exceeded all predictions and now demand a more effective Air Traffic Management (ATM) system. Although the amount of air traffic over the UK has increased threefold in the last three decades, the public evidence points only to its increasing safety (NATS, 1988). Rather, the most pressing concern of the Civil Aviation Authority (CAA) is now the forecast 70% growth in demand on UK airspace over the next decade. This forecast increase is extremely problematic since the UK system is already considered to be operating near capacity, and bottlenecks are publicly visible (Jackson, 1993; John & Macalister, 1991). The same problem faces the US authorities where, even in the 1980s, delays and congestions were estimated to cost between 1 and 1.5 billion dollars per year (Kanafani, 1986).

If safety must not be compromised by further increases in air traffic volume, neither must ‘expedition’.

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Publisher: Cambridge University Press
Print publication year: 1994

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