| 1. |
- Andersson Granberg, Tobias, et al.
(author)
-
A framework for integrated terminal airspace design
- 2019
-
In: Aeronautical Journal. - : CAMBRIDGE UNIV PRESS. - 0001-9240 .- 2059-6464. ; 123:1263, s. 567-585
-
Journal article (peer-reviewed)abstract
- Route planning and airspace sectorisation are two central tasks in air traffic management. Traditionally, the routing and sectorisation problems were considered separately, with aircraft trajectories serving as input to the sectorisation problem and, reciprocally, sectors being part of the input to the path finding algorithms. In this paper we propose a simultaneous design of routes and sectors for a transition airspace. We compare two approaches for this integrated design: one based on mixed integer programming, and one Voronoi-based model that separates potential "hotspots" of controller activity resulting from the terminal routes. We apply our two approaches to the design of Stockholm Terminal Maneuvering Area.
|
|
| 2. |
|
|
| 3. |
- Andersson Granberg, Tobias, et al.
(author)
-
A Novel MIP-based Airspace Sectorization for TMAs
- 2017
-
In: 12th USA/Europe Air Traffic Management R and D Seminar. - : EUROCONTROL.
-
Conference paper (peer-reviewed)abstract
- We present a MIP-based airspace sectorization framework for Terminal Maneuvering Areas (TMAs). It incorporates an airspace complexity representation, as well as various constraints on the sectors' geometry, e.g., the requirement that points that demand increased attention from air traffic controllers should lie in the sector's interior to allow for enough time to resolve possible conflicts. In contrast to earlier integer/constraint programming approaches, which used synthesis methods with variables per elementary airspace piece that were glued together to form sectors, our IP formulation uses a variable per potential edge on the sector boundary. It is also the first step towards an integrated design of routes, the resulting complexity, and a sectorization. We present results for Stockholm TMA.
|
|
| 4. |
- Andersson Granberg, Tobias, et al.
(author)
-
Automatic Design of Aircraft Arrival Routes with Limited Turning Angle
- 2016
-
In: 16th Workshop on Algorithmic Approaches for Transportation Modelling, Optimization, and Systems (ATMOS 2016). - Dagstuhl, Germany. - 9783959770217 ; , s. 9:1-9:13
-
Conference paper (peer-reviewed)abstract
- We present an application of Integer Programming to the design of arrival routes for aircraft in a Terminal Maneuvering Area (TMA). We generate operationally feasible merge trees of curvature-constrained routes, using two optimization criteria: (1) total length of the tree, and (2) distance flown along the tree paths. The output routes guarantee that the overall traffic pattern in the TMA can be monitored by air traffic controllers; in particular, we keep merge points for arriving aircraft well separated, and we exclude conflicts between arriving and departing aircraft. We demonstrate the feasibility of our method by experimenting with arrival routes for a runway at Arlanda airport in the Stockholm TMA. Our approach can easily be extended in several ways, e.g., to ensure that the routes avoid no-fly zones.
|
|
| 5. |
- Andersson Granberg, Tobias, 1973-, et al.
(author)
-
Configuration and Planning of the Remote TowerModules in a Remote Tower Center
- 2016
-
Conference paper (peer-reviewed)abstract
- Today, many small aerodromes struggle withfinancial difficulties, and a large cost is air traffic control.Remote tower centers, which remotely provide air traffic servicesto aerodromes, can help reduce this cost. Each center maycontain a number of remote tower modules, where each moduleis manned by a controller that can handle one or moreaerodromes. In this paper we present the remote tower centerconcept and develop a model that optimizes the assignment ofairports to the remote tower modules. Computational results fora possible scenario based on real data for Swedish airports arepresented.
|
|
| 6. |
- Andersson Granberg, Tobias, 1973-, et al.
(author)
-
Integer Programming-Based Airspace Sectorization for Terminal Maneuvering Areas with Convex Sectors
- 2019
-
In: Journal of Air Transportation. - : American Institute of Aeronautics and Astronautics. - 2380-9450. ; 27:4
-
Journal article (peer-reviewed)abstract
- In this paper an airspace sectorization framework for terminal maneuvering areas based on mixed integer programming is presented. It incorporates an airspace complexity representation, as well as various constraints on the sectors’ geometry, for example, the requirement that points demanding increased attention from air traffic controllers should lie in the sector’s interior to allow for enough time to resolve possible conflicts. The method can enforce convex sectors. In contrast to earlier integer/constraint programming approaches, which used synthesis methods with variables per elementary airspace piece that were glued together to form sectors, the integer programming formulation uses a variable per potential edge on the sector boundary. It is also the first step toward an integrated design of routes, the resulting complexity, and a sectorization. This paper presents results for Stockholm Arlanda airport and compares the integer programming results to convex sectorizations obtained by enumerating all possible topologies for a given number of sectors. This yields a proof-of-concept for the application of this highly flexible approach to terminal maneuvering areas.
|
|
| 7. |
|
|
| 8. |
- Duchamp, Vincent, et al.
(author)
-
Air Traffic Deconflicon Using Sum Coloring
- 2019
-
In: 2019 IEEE/AIAA 38TH DIGITAL AVIONICS SYSTEMS CONFERENCE (DASC). - 9781728106496
-
Conference paper (peer-reviewed)abstract
- This paper studies strategic conflict resolution for air traffic based on sum coloring. We consider two application scenarios: manned and unmanned air traffic, with similar targets: to improve efficiency of operations and to reduce the costs. For the Unmanned Air Vehicles Traffic Management (UTM) we consider also a payment mechanism which incentivizes the operators to share information necessary to find a socially optimal solution. We quantify the potential savings via a series of experiments, showing that our methods drastically outperform the widely used FirstCome-First-Serve (FCFS) strategy.
|
|
| 9. |
- Hardell, Henrik, 1989-, et al.
(author)
-
Morphing STARs vs drones and weather in TMA
- 2020
-
Conference paper (peer-reviewed)abstract
- We present an optimization framework for computing STARs that slowly change over time, while always avoiding a set of moving obstacles in TMA. The framework is applied to two types of obstacles: a drone intruder and hazardous weather. We demonstrate the output of our algorithms on synthesized drone intrusion incidents and real storm cells in Stockholm Arlanda terminal area.
|
|
| 10. |
- Hardell, Henrik, 1989-
(author)
-
Optimization of Aircraft Arrival Operations for Improved Environmental Efficiency
- 2024
-
Licentiate thesis (other academic/artistic)abstract
- The transportation sector, accounting for about one fifth of all greenhouse gas emissions, is facing a significant transformation in order to become more climate-friendly. In terms of air transportation, there are several important steps on the way to making flying sustainable both for the planet itself and for people directly or indirectly being exposed to its effects. In the state of the current air traffic operations, where environmentally friendly propulsion systems and fuels are not yet implemented on a large scale, enhancing the efficiency in the airspace can help to bring us closer to the environmental goals of aviation. Such solutions may include improved synchronization of arriving flights in the Terminal Maneuvering Area (TMA), in which congestion is a problem for many airports. In this thesis, we first explore and develop methodologies for assessing the environmental impact of the operations in TMA. More specifically, the goal of the assessments is to quantify the additional fuel consumption, gaseous emissions and noise that comes from horizontally and vertically inefficient arrival operations in TMA. We perform our assessments on a couple of European airports, including Stockholm-Arlanda. Secondly, we propose a Mixed Integer Programming (MIP)-based optimization model which provides for conflict-free arrival operations, where aircraft fly fuel-efficient Continuous Descent Operations (CDOs), applied to Point Merge (PM) arrival procedures, with the primary purpose to serve as a route assigner. We base our optimization on real scenarios, from actual transmitted flight data, and model realistic descent profiles considering the operational capabilities of the specific aircraft type. Additionally, the optimization model ensures the required spacing between aircraft taking off and landing in case the runway is used in a mixed mode. We evaluate our solutions by assessing numerous performance metrics, including environmental efficiency, and compare to the actual trajectories of the real operations. On two European airports implementing PM procedures, we demonstrate that our optimization model provides improved vertical performance as well as reduced time and distance flown in TMA, contributing to reduced levels of noise and fuel savings, accompanied by decreased emissions.
|
|
