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PHARE Overview

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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:
  • Insufficient training of Controllers
  • Lack of trust in the tools by Controllers
  • Airspace not optimum for the use of the tools
  • Operational procedures and working methods not optimised to tools
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.
  Link to the EUROCONTROL INTEGRA website
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:
  Capabilities of aircraft with advanced navigation and flight management equipment
  Advanced automation support for air traffic controllers
  Modification of controller roles including new concepts of task sharing within groups of controllers and multi-sector planning.
  Ground Human Machine Interface for efficient and effective use of the automation support
  Use of datalink for air ground-ground information exchange, in particular for trajectory negotiation
  Better meteorological forecasting to improve trajectory prediction
  A common integration environment
  A common methodology and standard set of tools and procedures for experimental validation.
Three PHARE Demonstrations were planned:
  PHARE Demonstration 1 addressing En-route issues
  PHARE Demonstration 2 focussing on the extended Terminal Manoeuvring Area (TMA)
  PHARE Demonstration 3 providing a multi-site integrated experiment addressing flights from departure to arrival
Each of the PHARE Demonstrations involved extensive real-time simulations with live aircraft integrated with the simulation.

The concepts to be addressed were:
  Trajectory Prediction
  Advanced and Layered Planning
  Multi-Sector Planning
  Tactical Load Smoother
  Arrival Management
  Departure Management
  Conflict Solving Assistance
  Co-operative Tools
  Flight Path Monitoring
  Air/Ground Negotiation
  Ground/Ground Negotiation
  Experiment Design