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set scope and objectives of simulation
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identify the data flow between the various assessment phases
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establish the milestones and target dates for the validation process
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evaluate the resources required
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ensure the availability of the simulation platforms
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ensure the availability of the qualified personnel (simulation experts, ATC controllers, pseudo pilots, pilots, etc)
1.5.1 SETTING VALIDATION OBJECTIVES
The first step in preparation of the process should be the setting of the objectives by the Terminal Airspace design team together with the Validation Team. More specifically, the simulation objectives should be:
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Based on a specific requirement
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realistic
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achievable
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explicit (oriented to a specific item of the design concept)
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measurable
The objectives of the process will determine which validation method should be used (airspace modelling, FTS, RTS, live trials, flight trials, etc) and the scope of each step. For this reason, the validation objectives can also be influenced by the available simulation platform. After deciding the required succession of modelling and simulations the design/simulation team should develop specific objectives for each step of the assessment/validation process.
1.5.2 SELECTION OF SIMULATION PLATFORM
After the simulation objectives have been set, and the validation process established, the Terminal Airspace design and Simulation teams should select the simulation platforms which will be used for each step of the process. This decision should be based on various factors, the main ones being:
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Suitability for the achievement of the objectives;
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complexity of the objectives;
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required accuracy of results;
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type of required results (statistical data, operational feed-back, etc);
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availability of the simulation platform and support personnel;
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cost of the simulation;
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duration of the simulation process;
1.5.3 CHOOSING DATA COLLECTION METHODS
Each simulation method provides a specific set of the results. The format and type of the output data also varies with each simulation platform. It is very important for the design/simulation team to assess with the simulation experts for each tool to be used in the simulation process, which data can be obtained and how this data is generated and collected by that platform. (See Table 1 - 1, above).
Based on this assessment the design and simulation teams should jointly decide which criteria are to be used for evaluation in order to achieve the simulation objectives and subsequently which data will be collected and analysed during the simulation. (See Part C, Chapter 3).
1.5.4 CHOOSING/CREATING THE TRAFFIC SAMPLE
One of the main distinctions between traffic samples used for validating En Route airspace development as opposed to the Terminal Airspace equivalent concerns the extent to which there is/are predominant Runway(s) or Runway combinations in Use. It is primarily for this reason that the number of traffic samples is determined first by the Runway in Use. If, for example, an Airport has a single Runway 01/19 and each landing/take off direction is used 50% of the time, it will be necessary to have two ‘Reference’ Traffic samples – one for each landing/take-off direction. If, on the other hand, statistical analysis shows that Runway 01 is used 90% of the time, it could be possible to have one Reference Traffic Sample for Runway
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