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PHARE set out to prove that an integrated air/ground environment using advanced ATM tools and Human Machine Interfaces would provide increased airspace capacity. The capacity indicator was taken to be Controller Workload. In the real-time demonstrations, the PHARE Demonstrations, Controller Workload was not seen to decrease. It was considered that the main reasons for this were:
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Insufficient training of Controllers |
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Lack of trust in the tools by Controllers |
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Airspace not optimum for the use of the tools |
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Operational procedures and working methods not optimised to tools |
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It was concluded at the time that if these issues were addressed then a reduction in Controller Workload would be detected and hence an increase in airspace capacity.
Initiatives such as the EUROCONTROL CARE INTEGRA initiative have questioned whether the first two issues can ever be achieved in a simulation environment and hence whether Controller Workload based on self assessment can ever be used as a measure of capacity in simulations. INTEGRA has undertaken extensive R&D on a method of quantitatively determining the airspace capacity provided by a given real-time ATM simulation without recourse to Controller Workload.
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Link to the EUROCONTROL INTEGRA website
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PHARE comprised initial concept definition and elaboration studies, development of tools (airborne, ground, communication and supporting tools) and a set of large scale real-time simulation activities termed the PHARE Demonstrations (PDs) aimed at addressing the following topics:
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