China
Africa
Explore chapters and articles related to this topic
ATC/ATM (Air Traffic Control/Management)
Published in Milan Janić, System Analysis and Modelling in Air Transport, 2021
The ATM (Air Traffic Management) enables the ATC control to perform tasks/functions at two-levels by: (a) providing safe separation between aircraft/flights according to the prescribed rules; and (b) enabling safe, efficient, and effective movement of air traffic flows in the given airspace under given conditions. The ATM system’s sub-functions are: AM (Airspace Management), ATS (Air Traffic Services), and ATFM (Air Traffic Flow Management). AM focuses on the availability of airspace in order to provide optimal aircraft/flight trajectories. The ATS as a core component of the ATC control function continuously provides conditions for safe, efficient, and effective movement of air traffic flows. The ATFM balances the air traffic flows as the demand for service and the available ATC system’s capacity, handling this demand at both the tactical and strategic level, aiming at preventing the rather long ground/airport and air/airspace aircraft/flight delays, and eventual compromising of the required level of safety (EEC, 2007; 2008; Janić, 2000).
Collision Avoidance Using Neural Networks Learned by Genetic Algorithm
Published in Takushi Tanaka, Setsuo Ohsuga, Moonis Ali, Industrial and Engineering Applications of Artificial Intelligence and Expert Systems, 2022
Nicolas Durand, Jean-Marc Alliot
An ATC system can be represented by an assembly of filters, or shells. A classical view of the shells in an ATC system could be: Airspace design (airways, control sectors, …), When joining two airports, an aircraft must follow routes and beacons; these beacons are necessary for pilots to know their position during navigation and help controllers visualize the traffic. As there are many aircraft simultaneously present in the sky, a single controller is not able to manage all of them. So, airspace is partitioned into sectors, each of them being assigned to a controller. This task aims at designing the air network and the associated sectoring.Air Traffic Flow Management (ATFM) (strategic planning, a few hours ahead), With the increasing traffic, many pilots choose the same routes, generating many conflicts over the beacons inducing overloaded sectors. Traffic assignment aims at changing aircraft routes to reduce sector congestion, conflicts and coordinations.Coordination planning (a few minutes before entering in the sector), This task guarantees that each new aircraft entering a control sector does not overload the sector.Tactical control in ATC centers (up to 20 mn ahead), At this level, controllers solve conflicts between air-craft.Collision avoidance systems (a few minutes before collision). This level is activated only when the previous one has failed. This level is not supposed to be activated in current situations.
A safe flow-management method for air traffic considering the UAS presence into the non-segregated airspace
Published in Stein Haugen, Anne Barros, Coen van Gulijk, Trond Kongsvik, Jan Erik Vinnem, Safety and Reliability – Safe Societies in a Changing World, 2018
Euclides Carlos Pinto Neto, Derick M. Baum, Marco A. Brinati, Jorge R. Almeida, Paulo S. Cugnasca, João B. Camargo
According to (ICAO 2014), the ATFM is “an enabler of Air Traffic Management (ATM) efficiency and effectiveness. It contributes to the safety, efficiency, cost-effectiveness, and environmental sustainability of an ATM system”. ATFM enables the airspace to operate smoothly and resiliently, considering the possible difficulties that may be faced (e.g. bad weather conditions). The planning of the traffics movements (e.g. scheduling) helps the ATC units to, collaboratively, adapt the airspace for current needs in a global view.
A column generation-based framework for ATFM incorporating a user-driven prioritization process
Published in Transportmetrica B: Transport Dynamics, 2023
Xiongwen Qian, Jianfeng Mao, Yuan Wang, Meng Qiu
ATFM is a critical aspect of air traffic control that helps manage the flow of air traffic in congested airspace. The ATFM problem arises due to various real-world challenges such as adverse weather conditions, airport capacity constraints, and unexpected events such as equipment failures or security alerts. These challenges can cause delays, cancellations, and other disruptions to air travel, leading to significant economic and social costs. In 2021, the U.S. Passenger Carrier Delay Costs were estimated to be $80.52 per minute (Airlines for America 2022) and the total US flight arrival delays amounted to over 60 million minutes (Department of Transportation 2022).