Analyses of cognitive processes in train traffic control.

The study of complex information processing and problem-solving situations in practice is discussed, in particular the methods of analysing the cognitive aspects in train dispatcher's work. Some parallels are drawn with related work in processing industries. A prerequisite for the approach to the issue was that the results would have to yield very concrete starting-points for the design of technical aids. The research started from the assumption that it would be extremely difficult to derive design indications from apparently observable actions of the train dispatchers. This led to the choice of a combination of a preliminary simulation study followed by analysis of cognitive processes in the train dispatcher's behaviour in every day practice. It turned out to be helpful for the analysis to draw parallels between the cognitive processes in the behaviour of the train dispatchers and the way of working/thinking shown by test subjects in complex problem-solving experiments.