DSS on Trial
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DSS on Trial - 'a1idation of decision support systems for air traffic management
Paula Leal de Matos and David Marsh European airspace is becoming ¡noie congested and air traffic ¡s expected lo grow for the foreseeable Jùture. Decision support systems will llave an increasingy important role in helping air
validation activity. In between each activity, the design is revised and refined.
traffic controllers meet this demand, by contributing lo the growth of capacity of the air traffic system while maintaining or improving current levels of saJèty. The development and evaluation of prototypes are essential steps in the validation of new decision support systems for air traffic control. This paper describes how Yational Air Traffic Services Limited validates
This paper concentrates on prototype development and small-scale real-time simulations. For a discussion of fast-time simulation, see Phillips & Marsh. More details of all aspects of validation in ATC can be found at www.atmdc.nats.co.uk.
new decision support sivstenrc for air traffic controllers.
Development of the prototype -OC) O
o o-
When developing the prototype, modellers and engineers have
European airspace is becoming more congested and
to
understand the operational
context in which the DSS is going to he used and air traffic is expected to grow for the foreseeable define how the DSS will fit in that context. For future. Decision support systems (DSS) will have an instance, to develop the prototype of a Final increasingly important role in helping controllers Approach Spacing Tori (FAST for Heathrow meet this demand, by contributing to the growth of Approach Control, an iterative process was adopted capacity of the air traffic system while maintaining that involved close observation of diflèrent or improving current levels of safety. controllers at work and discussion of the observations with them (see Marsh et al, 1999). This resulted in a structured description of the controllers' tasks. It also indicated those tasks which
National Air Traffic Services Limited (NATS) is responsible for air traffic control in UK airspace, in
part of the North Atlantic airspace and at most major UK airports. NATS has been investing in new DSS for Air Traffic Management (ATM)
controllers do well and thus where a DSS was unlikely to provide significant benefits, as well as tasks where a DSS might provide some benefit.
operations in the UK and in Europe in collaboration with other European air traffic services providers. Its Department of ATM Systems Research develops and validates new DSS for ATC.
An 'operational concept' describes the controllers' tasks in the context of providing the ATC service and explains how the DSS would fit in \Sith those tasks. Some operational concepts, typically the ones aimed at longer time horizons, involve significant changes from current working procedures others will result in minimal alterations to current procedures. The definition of the operational
Here 'validate' means using a prototype to assess how efièctive the DSS wo
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