Operational Feasibility of Segmented Independent Parallel Approaches

Abstract

Noise, especially in the vicinity of airports, is one of the most important factors of modern air transport systems, especially at major hub airports. New approach designs like curved Required Navigation Performance (RNP) procedures to independent parallel runway systems can decrease the noise footprint in sensitive ground areas without reducing airport capacity. So far, only straight-in ILS (or MLS) approaches are allowed for independent parallel approach operations. To introduce RNP curved/segmented approaches as a further option for independent approaches to a parallel runway system, a safety concept has been developed by DLR in recent years based on the ICAO SaRPS for independent parallel approaches (ICAO Doc 9643). Following this concept, curved RNP approach operations should be possible at Frankfurt/Main airport enabling noise abatement even in high density traffic situations. This paper considers the operational aspects of independent segmented parallel approach procedures at major airport-hubs with parallel runway systems like Frankfurt Airport. It reports about a new route design enabling the management of mixed aircraft equipage. The focus is on the operational feasibility of the new TMA design. This has been assessed by a real-time simulation with controllers of the German Air Navigation Service (DFS). The results of these simulations are presented in this paper