"uuid","repository link","title","author","contributor","publication year","abstract","subject topic","language","publication type","publisher","isbn","issn","patent","patent status","bibliographic note","access restriction","embargo date","faculty","department","research group","programme","project","coordinates"
"uuid:52904af0-09cb-4958-9658-691377864f80","http://resolver.tudelft.nl/uuid:52904af0-09cb-4958-9658-691377864f80","Operational Gate Allocation Using a Sliding Time Window","Borghart, jasper (TU Delft Aerospace Engineering)","Roling, Paul (mentor); Curran, Richard (graduation committee); Ellerbroek, Joost (graduation committee); Delft University of Technology (degree granting institution)","2019","The steady growth of air traffic volumes and the subsequent increase of congestion at major airports require airports to increase their operational efficiency. Inefficient or the absence of gate reassignment models increase the possibility and occurrence of gate blockage and at the same time reduce the comfort of passengers as they often receive the notice that they have to wait for their assigned gate to become available. This thesis describes a model to optimally reallocate flights to available gates on the actual day of operation for a large airport, such as Amsterdam Airport Schiphol (AMS). It takes into account the scheduled arrival time of a flight for the initial assignment, during daily operation the model updates the scheduled arrival time with the estimated arrival time as soon as the flight is enroute. The proposed model allows the user to do a trade-off between delaying, gate changing and remote handling of flights. The sliding time window has shown to reduce the number of gate changes required during daily operation in order to mitigate gate conflicts. Validation of the model with data obtained from AAS showed that the approach is feasible for real world application and that it improves the operational efficiency of the airport.","Gate allocation; Airport; MILP; Aircraft","en","master thesis","","","","","","","","","","","","Aerospace Engineering","",""
"uuid:d2f70dea-b9d5-40fc-87d9-29ffb3c0c72f","http://resolver.tudelft.nl/uuid:d2f70dea-b9d5-40fc-87d9-29ffb3c0c72f","Modelling the Effects of Gate Pit-Stops on Apron Congestion","van Lingen, Wouter (TU Delft Aerospace Engineering; TU Delft Aerospace Transport & Operations)","Roling, Paul (mentor); Curran, Richard (graduation committee); Ellerbroek, Joost (graduation committee); Delft University of Technology (degree granting institution)","2019","Demand for air traffic is growing worldwide. In order to accommodate this growth, existing infrastructure such as gates should be used more efficiently. One technique to increase gate utilization is by introducing gate pit-stops. Introducing gate pit-stops leads to additional towing movements which can potentially interfere with other traffic on the apron. This in turn will lead to delays, which is undesirable. Currently, gate pit-stops are only performed for flights with a turnaround time of three hours or more. In order to investigate whether pit-stops can be effectively introduced on a broader scale, a model has been created that simulates gate assignments and apron movements. This model provides insight in the effect of gate pit-stops on gate utilization and apron congestion for different airport scenarios. Results show that introducing pit-stops for flights with a turnaround time of less than 180 minutes leads to an increase in flights that can be handled at a gate instead of a remote stand, at a small delay penalty. Airlines and airports can benefit from these findings as they will be able to handle more flights at a gate using existing infrastructure.","Gate pit-stops; Gate utilization; Gate allocation; Apron movements; Apron delays; ETS; operations optimization; Aircraft taxiing; Aircraft towing","en","master thesis","","","","","","","","","","","","Aerospace Engineering","",""
"uuid:17b5732c-f8d4-4a78-b9ae-36ad00f11391","http://resolver.tudelft.nl/uuid:17b5732c-f8d4-4a78-b9ae-36ad00f11391","Robust model for operational stand and gate planning Schiphol","Käller, Danuta (TU Delft Aerospace Engineering)","Roling, P.C. (mentor); Mercado Velasco, G.A. (mentor); Curran, R. (graduation committee); Ellerbroek, J. (graduation committee); Delft University of Technology (degree granting institution)","2019","The purpose of this research is to investigate the effects of individually established buffer times, based on historical delay data, on the robustness of an operational stand and gate allocation schedule. Using flight schedules and the structural lay-out of Amsterdam Airport Schiphol, a stand and gate allocation model is created using BEONTRA software. Eight allocation schedules are
specified with each a set of different buffer times, which are established after grouping and analysing the historical delay data. The flight schedule that is used as input is the one for peak day Monday 16 July 2018. The allocation schedules are then tested amongst others on probability of overlap and on delay data as a result of simulation. A by LvNL validated model of Schiphol is used in fast-time simulation programme AirTOp to simulate common delays on the allocation
schedules. The outcome is compared to the outcome of two baseline schedules, after which conclusions are drawn and recommendations are given with regard to the effectivity of buffer time optimisation.","Stand and gate allocation; operations optimization; Schiphol; AirTOp; Airport ground management operations; Buffer times","en","master thesis","","","","","","","","","","","","Aerospace Engineering","",""