ABSTRACT
The relationship between pilot performance and operational workload has been the centre of major research emphasis in recent years as the level of technology and automation increases rapidly and the nature of aircraft operations changes to a greater systems monitoring role (Derrick, 1988; Harris, Hancock, Arthur, & Caird, 1995). The literature indicates that there is a clear relationship between operational workload and pilot performance (Bainbridge, 1987; Domer, 1987), and that as relative pilot workload increases, pilot performance reduces, especially at the cognitive level (Laudeman & Palmer, 1995). Gawran, Schflett and Miller (1989) argue that system performance and safety are dependant on operator workload.
