ATS 3.22 ROUTE CONFORMANCE MONITORING SYSTEM (RCMS)

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ATS 3.22 ROUTE CONFORMANCE MONITORING SYSTEM (RCMS)

A Route Conforming Monitoring System is a function of an Automated ATS System that monitors the position of an aircraft to detect when it deviates from its route. An RCMS compares aircraft trajectory data from various forms of surveillance with known points on the system route for an aircraft and then calculates if the aircraft position falls outside pre- defined parameters. When this occurs, certain processing can be suspended and an alert is often sent to the controller. This can be either a Route Deviation Alert (RDA) and/or an Estimated Time over Deviation Alert (ETODA). An RCMS is considered to be a Controller Tool.

For the purpose of the below policy, a route is considered to be a two dimensional path, i.e. lateral and longitudinal.


IFATCA Policy is:

Definitions:

A ROUTE CONFORMANCE MONITORING SYSTEM (RCMS) is a function of an Automated ATS System that monitors the position of an aircraft to detect when it deviates from its route. An RCMS is considered to be a Controller Tool.

A ROUTE DEVIATION ALERT (RDA) is an alert provided to a controller to notify that an aircraft’s position is displaced outside the tolerances defined within RCMS.

Note: Certain processing may be suspended.

An ESTIMATED TIME OVER DEVIATION ALERT (ETODA) is an alert provided to a controller to notify a controller that a new estimate is outside specified parameters when compared to a previous estimate.


See: WP 92 – Melbourne 2005

 

Last Update: October 2, 2020  

November 4, 2019   258   Jean-Francois Lepage    ATS    

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