At the extremity of the terminal airspace, arriving aircraft are vectored along an arc from where the timing of their turn towards the merge point determines the landing sequence. The procedure takes advantage of precision navigation technology (P-RNAV) on board modern aircraft, enabling them to fly precise pathways in the sky. The simplicity of point merge means that it is intuitive for the controllers to use, and requires fewer radio exchanges with the pilot. Fewer radar vectors also means less uncertainty on the flight deck with regard to the anticipated tactical route and the distance to go. The pilot can fly a continuous descent approach (CDA) path - rather than stepped height changes – consuming less fuel, while non P-RNAV equipped aircraft can still be vectored to the final approach point.
SJU references: #107/Release 2
- Increased capacity in the terminal airspace
- Improved safety levels
- Improved air navigation service provision
- Reduced fuel consumption and emissions