Current terminal operations are changing as more terminal Area Navigation (RNAV) routes are defined that aircraft are expected to fly. Previously, arriving aircraft filing a Standard Terminal Arrival Route (STAR) were given vectors to guide them to the runway when the aircraft transitioned from the STAR and entered the terminal area. There are, however, efforts underway to extend these STARs as routes in the terminal area that overlay the current traffic patterns resulting from the vectors that controllers give to the aircraft. Since these RNAV STAR extensions are overlays, they typically have merge points prior to the merge on final. The challenge for terminal controllers managing merges are wind and speed differentials due to the altitude change along the arrival paths. The geometry of a merge (the number of turns and the length of each route prior to the merge) makes it more challenging to identify a potential merge problem early enough to prevent vectoring an aircraft off the RNAV procedure. To achieve the additional expected benefits and efficiencies from these terminal routes, the controllers will need automation support to assist them in managing the traffic where the routes merge. Currently there is an automation aid in the U.S. terminal automation systems (Automated Radar Tracking Systems (ARTS) and Standard Terminal Automation Replacement System (STARS)) that helps controllers synchronize two streams of traffic, namely the Converging Runway Display Aid (CRDA).
RNP RNAV Arrival Route Coordination
2006-10-01
470174 byte
Conference paper
Electronic Resource
English
Use of 4-D RNAV in Time-Based en Route Arrival Metering
NTIS | 1990
|Online Contents | 1994
Emerald Group Publishing | 1971
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