Time Analyses of the Tasks of Approach Controllers in ATC

Abstract

A method is outlined modelling the task of an approach controller in an ATC system. Two main parts are distinguished. (1)The development of a flow diagram of the task, giving a qualitative description emphasizing the sequence of task components. (2)An attempt to quantify the task components in order to find out the bottlenecks in the task. A practical example is described. For 134 inbound nights the performance of the controller was recorded in a restricted form by measuring the times for the corresponding task components.