RNP Parallel transition transition (RPAT)

Direct-Track Consulting was selected to provide operational expertise in the development of the Safety Case supporting the concept of RPAT at Dubai International Airport.

Dubai Airport has two very closely spaced but staggered parallel runways.  This close alignment forces the operation into an inefficient dependent mode of landing one runway while departing the other.  Further compounding the situation is that the runways are so closely spaced if you were to offload an aircraft onto the righthand runway full wake vortex spacing must be applied.  Net advantage for overall runway acceptance nil.

The RPAT concept utilizes an RNP-AR off set approach to avoid the wake implications in the initial stages of the procedure.   The aircraft use visual separation while transitioning to a near shoulder to shoulder final stage.  In the final stages the result will look rather like the visual approach to San Francisco.

This concept will set prescident and dramatically increase the airport arrival capacity while landings on both runways will be possible.  This will decrease surface movement congestion by enabling airsorting of the aircraft.