ABSTRACT
This paper will look at a heuristic tool for informal decision processes concerning the air traffic control system in the UK. The paper considers the surprising benefits of a simple tool in the elicitation of data and in the representation of risk. It is suggested that such a heuristic approach may offer advantages through creating a simplified, discipline-independent structure for complex problems. Within this it may be possible to consider risks and highlight conflicts of oversight, fixation and oversimplification. These advantages could prove beneficial as a form of ‘checks and balances’ in informal decision processes. In particular these checks may help where safety issues are difficult to articulate. It is suggested that such an approach could prevent the subtle attrition of safety. This is seen as beneficial even if, ultimately, the real complexity of these decisions overwhelms the model.
