Phenotypes of Teamwork - an Exploratory Study of Tower Controller Teams

Kurzfassung

Background: Work in complex human-machine-systems is often performed by teams. Therefore, the quality of teamwork processes is a factor that influences the performance of the overall system. There are theoretical models that predict teamwork processes which are critical for good team performance. The work presented in this paper researches, how these “generic” processes become apparent in the specific domain of air traffic tower control. A scenario was used, where operators control two airports simultaneously, i.e. controllers have to guarantee a safe flow of traffic. Method: An explorative study was conducted, to identify teamwork processes within a team of two tower controllers. Video data from a high fidelity simulation was analyzed and combined with radio communication. Cognitive demanding situations were analyzed and compared to similar situations with one single operator. Results: Teamwork processes within the tower controller teams mostly did not become apparent in explicit verbal communication but rather within the timing of activities. All teams showed a specific pattern of activity defined as “flexible task assignment”. This behavior allowed the teams to respond to new aircraft with less delay, compared to the single controller working the same situation. Outlook: Further examples of “real-world” teamwork behaviors should be collected to understand the influence of the specific domain onto the phenotype of teamwork processes. These behaviors should be mapped to underlying cognitive processes, like team situation awareness. This knowledge might not only be of academic interest but also a helpful basis for other research field of human factors, like enabling automation to act as a team partner.