Conflict detection tools impact on controller taskload - fast-time study

The fast time simulation reported in this document aims at assessing the potential benefits of conflict detection tools (MTCD, TCT) for planning and tactical use by the controllers.

The study is focused on i) the investigation of task load reduction and task load re-allocation aspects and ii) the evaluation of the ratio between controller task load reduction and accuracy of MTCD/TCT tools.The modelled airspace contains 6 MUAC sectors and the 24h regulated CFMU traffic sample from 19 July 2005 was used as initial traffic. Results were compared with a baseline situation without use of conflict detection tools.

Fast time results showed an average task load reduction of 12% when MTCD only was used (that was consistent with FASTI previous results) and a task load reduction of about 21% when both MTCD and TCT were active. Task load was evenly distributed across the two controllers (~48% Planner and ~52% Tactical) when both MTCD and TCT were active, while task load distribution without use of conflict detection tools was less balanced (~36% Planner and ~64% Tactical).

With respect to accuracy of the tools, initial results showed that for 2% variance for TCT and 10% variance for MTCD, impact on task load seems small, contained around the ideal values. The results may feed subsequent real time simulations and may provide inputs to a business case study.

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Conflict detection tools impact on controller taskload - fast-time study