Abstract
The relation between pilots‘ workload and radar controllers‘ workload was investigated. Pilots‘ workload served as the independent variable. It was assumed that a number of levels of workload can be distinguished in a standard airport, traffic circuit under visual flight rules. The dependent variable (controllers’ workload) was measured by response frequency on an auditory binary choice task. Results indicate a rise in radar controllers’ workload in a predicted direction for a number of pilots’ workload levels.