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  1. Egis
17 January 2010

Unique Fast-Time ATM Simulators Developed by Egis Avia

Simulations are increasingly requested by en route and approach control facilities in order to test and validate new air traffic concepts. The development of new concepts such as free-route and ASAS-spacing necessarily include experimental phases on a simulator before they are put into operation.

The OPAS fast-time simulators developed by Egis Avia for DSNA, the French ANSP, overcome limitations of previous simulators. The OPAS family has three simulators: OPASEn- route and OPAS-TMA are specialised in en route and approach traffic, and OPAS-Ground covers stands, apron, taxiway, runway operations In addition OPAS-Coupled unites the first two in one simulator that is capable of managing traffic from the runway as far as en route and the reverse procedure.

Two tools complete this family: OPAS ESPRIT, an input interface for approach area procedures (for OPAS-TMA), and OPAS-ARTS, a tool for dynamic trajectory display. REGARDS, an independent tool for displaying aeronautical data, enables the results of studies to be enhanced by using coloured maps, among other things.

The strong points of the OPAS family are the realism of the simulations and the flexibility of the code. The performance model used and the flight management algorithms are key factors in the level of precision reached by the simulators, and particularly by OPAS-TMA.

Faithful reproduction of radar guidance and traffic flow in the approach area

OPAS-TMA is, as far as we know, the only simulator that can faithfully reproduce the radar guidance and hence the flow of traffic in the approach area. The realism of trajectories is also the key input to realistic environmental studies, particularly noise and air quality.

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