Time-based Spaced Continuous Descent Approaches in Busy TMAs
K. Lodewiek, N. de Gelder, Alexander in 't Veld, Marinus M. van Paassen, Max Mulder · Sciyo eBooks · 2010
Air Trafic Control 90also given.The results of the MCS are listed in Section 5.The hypotheses are compared with the results and discussed in Section 6.The chapter ends with conclusions and recommendations. Time-based Spaced Continuous Descent Approaches RequirementsTo perform the evaluation of the controllers thoroughly, first the main requirements for the controllers are elaborated.The origins of these requirements follow from the main purposes of the TSCDA controllers, reduce fuel, reduce noise and maintain the throughput at the Runway Threshold (RWT):• The algorithms should strive for a minimisation of noise and emissions produced by approaching aircraft in the Terminal Manoeuvring Area (TMA).The amount of noise at ground level is mainly determined by the altitude, thrust setting and configuration of passing aircraft.Reducing noise can thus be achieved by delaying the descent as much as possible (steep and continuous descent), by choosing "idle" thrust-setting and maintaining the cleanest configuration as long as possible.The CDA developed by Koeslag ( 2001) is based on this criterion.• The algorithm should strive for a maximum throughput at the runway threshold.Maximum throughput at the RWT can be achieved by reducing the variability of the time space between landing aircraft.The minimum separation criteria are defined by the wake-vortex criteria which are set by the weight class of the landing aircraft.• To avoid the development of an expensive concept, an integration of the algorithm in today's or near future's Air Traffic Management (ATM) systems should be easily possible without major changes in those ATM systems.Therefore, the assumption that other systems must be adapted to make use of the new algorithms should be avoided as much as possible.An implication of this requirement is that the aircraft should perform their approaches, while knowing as little as possible about the other aircraft in the arriving stream. How to referenceIn order to correctly reference this scholarly work, feel free to copy and paste the following:Lodewiek K. Meijer, Nico De Gelder, Alexander C. In 't Veld, Marinus M