scholarly journals Hierarchical Bayesian Models to Estimate the Number of Losses of Separation between Aircraft in Flight

2021 ◽  
Vol 11 (4) ◽  
pp. 1600
Author(s):  
Rosa María Arnaldo Valdés ◽  
Victor Fernando Gómez Comendador

Air transport is considered to be the safest mode of mass transportation. Air traffic management (ATM) systems constitute one of the fundamental pillars that contribute to these high levels of safety. In this paper we wish to answer two questions: (i) What is the underlying safety level of ATM systems in Europe? and (ii) What is the dispersion, that is, how far does each ATM service provider deviate from this underlying safety level? To do this, we develop four hierarchical Bayesian inference models that allow us to infer and predict the common rate of occurrence of SMIs, as well as the specific rates of occurrence for each air navigation service provider (ANSP). This study shows the usefulness of hierarchical structures when it comes to obtaining parameters that enable risk to be quantified effectively. The models developed have been found to be useful in explaining and predicting the safety performance of 29 European ATM systems with common regulations and work procedures, but with different circumstances and numbers of aircraft, each managing traffic of differing complexity.

2019 ◽  
Vol 11 (1) ◽  
pp. 9
Author(s):  
Neno Ruseno ◽  
Mahardi Sadono

Air Traffic Management (ATM) is a discipline that manages the movement of flights in the air and on the ground. Its functions are to maintain the safety level required by the authority and to provide the capacity required by the airlines. The challenges in ATM come from the in-balance between the market growth and the available infrastructure and also the gap between the regulations and the technology. The research in ATM provides the solutions by introducing new methods or technologies to cope with those challenges.  The effort in organizing and cataloging the Body of Knowledge (BOK) in research of ATM is presented in this report. This BOK is a complete set of research concepts and activities in term of managing the air traffic to improve the air transportation safety and its capacity. Considering the latest publications in the last 5 years, the BOK consists of five areas of operation which are enroute, arrival, terminal, departure and connectivity. Each area of operations consists of several knowledge units that contain several research topics. In this report, a special attention is given to the development of ATM research in Indonesian. It characterizes with the challenges that commonly faced in Indonesia such as high density air traffic, in-sufficient infrastructure/technology, in-balance demand and supply during peak hours and major disruption by natural disasters (volcanoes and earth quakes).The report summarizes that the trend of ATM research in Indonesia is in the knowledge unit of capacity optimization. Additionally, it recommends to explore research activities by implementing new air traffic concepts such as the trajectory based operation and the integrated of departure and arrival management to improve capacity, efficiency and safety.


2000 ◽  
Vol 31 (2) ◽  
pp. 383 ◽  
Author(s):  
Kim Murray

This article is an updated and revised version of a paper originally presented to a Communication, Navigation, Surveillance/ Air Traffic Management Forum of Pacific state, airline and air traffic service provider organisation representatives meeting in Sydney, Australia on 16 April 1998. The Forum was organised under the auspices of the Australian Branch of the Royal Aeronautical Society.


2019 ◽  
Vol 20 (4) ◽  
pp. 275-289
Author(s):  
Thomas Standfuss ◽  
Frank Fichert ◽  
Michael Schultz ◽  
Petros Stratis

Fragmentation has been suspected of contributing to inefficiencies in the European Air Traffic Management (ATM) system. Heterogeneities between providers may contain multiple aspects, such as airspace structure, staff rostering, or systems used for flow management. Applying the scientific approach of data envelopment analysis, this article provides a new outlook on the relationship between airspace fragmentation and efficiency in the admittedly complex and highly dynamic environment of European ATM. We show that there are airspaces that might benefit from economies of scale, but that there is a tipping point where diseconomies of scale occur. Subsequently, the current approach of functional airspace blocks might inhere inefficiencies for some air navigation service providers.


Aviation ◽  
2014 ◽  
Vol 18 (4) ◽  
pp. 185-192 ◽  
Author(s):  
Volodymyr Kharchenko ◽  
Valeriy Chepizhenko ◽  
Svetlana Pavlova ◽  
Wang Bo

A new concept of the synthesis of a synergetic regulator for the control of difficult multidimensional aircraft in polyconflict conditions is offered in the article. The basic idea of control synthesis is the use of self-organization properties of real physical systems for the formation of algorithms for the synergetic regulator operation. This approach allows solving the problem of the high dimensionality of the regulator for aircraft in polyconflict conditions and provides aircraft control in real time. The synergetic approach offered by the authors allows minimising the expenditure of energy for conflict avoidance between aircraft and supports the guaranteed safety level of their motion.


2018 ◽  
Vol 21 (5) ◽  
pp. 43-55 ◽  
Author(s):  
A. O. Nikulin

In the article the analysis of functioning a joint decision-making (A-CDM) system of Sheremetyevo Airport is presented during airport operation in a "rush hour". Domestic and international programs of air traffic management (ATM) development assume that the airports will be completely included into the air traffic management network as components of this network. Cooperative decision-making will be used to provide a "seamless" process of planning. This process will take place with participation of airspace users, suppliers of an air navigation service and airports (with use of the automated facilities of arrival, departure and traffic on airfield surface) for the benefit of sequence management to increase runway capacity. The runway equipment has to be modernized, separation standards among aircraft on arrival and departure should be reduced, modern navigation and traffic control on an airfield surface aids have to operate. The runway is referred to the resources which operate according to the principle of only one client service. Influence of weather conditions (the wet runway, severe wind, low visibility) determines the airfield capacity. Arrival and departure control allows optimizing aerodrome operation from the view of cost efficiency and ecology. The system of joint decision-making for an airport is a complex of the procedures aimed at increasing level of air traffic flows organization, airfield and airspace capacity through raising a level of event predictability and optimization of the resource use process. The system allows operating information to obtain the modified output data for decision-making. The main system objectives are to increase the level of temporary accuracy of an event emergence and also its predictability.


Author(s):  
V. I. Chernysh ◽  

The threat to information security for the air navigation service providers represents a potential violation of information security of the information infrastructure elements in the air traffic management system such as communications, navigation and surveillance equipment, and the information and telecommunication systems. Typically, a threat results from the presence of vulnerable components in the protection of information technology as part of air navigation service providers activity. Generally, threats to information and communication systems include equipment failure, environmental destruction, human or machine errors, and targeted attacks, which are often complex, well-organized, and well-funded. Taking into account, information and telecommunication systems of air navigation service providers are critical resource that must be protected from external and internal threats. Information and telecommunication systems of air navigation services providers are a combination of information and telecommunication systems, in the process of processing air navigation information act as a whole. The realization of information security threats in information and telecommunication systems may adversely affect the provision of safety and air traffic management security. As a result of information security threats realization, incidents or accidents in the air traffic management system can be occurred. The paper proposes functional models of information space and information flows in the provision of air navigation service. The developed models are recommended for use in the process of security risk management in air traffic management within the new generation risk management system, as a necessary part of air navigation service provider integrated management system.


2019 ◽  
Vol 20 (4) ◽  
pp. 290-304
Author(s):  
Goran Pavlović ◽  
Frank Fichert

The European Air Traffic Management (ATM) system is highly fragmented. It consists of 37 air navigation service providers (ANSPs) whose areas of responsibility are, in most cases, limited to national borders. ATM fragmentation impacts air traffic operations in Europe in several ways. One of them is reflected through the current route charging system, which is designed and adapted to the fragmented ATM system to recover air navigation service provision costs at the level of individual ANSPs. Differences in unit rates have led to the phenomenon of aircraft taking detours around expensive charging zones, resulting in additional fuel consumption and emissions, as well as traffic shifts caused by varying unit rates. In this article, we analyze the differences in the unit rates across Europe and their evolution over the past few years. The main focus of the article is the analysis of the route charge variability on an airport-pair level, measured by an airport-pair variability indicator, which we suggest as a metric. We show the route charge variability for different flight distances, geographic areas, and flight directions, and we also identify airport pairs with the highest route charge variability. Finally, we discuss selected alternatives to the current route charging system, such as the uniform charge method and different approaches to airport-pair charging.


2017 ◽  
Vol 29 (6) ◽  
pp. 643-655
Author(s):  
Tomislav Mihetec ◽  
Andrija Vidović ◽  
Zvonimir Rezo

Implementation of Air Traffic Management (ATM) MasterPlan-defined projects represents a prerequisite for thesuccessful implementation of the Single European Sky initiativedefined by the European Commission in 2004. Theimplementation of ATM-related projects is currently under the responsibility of the Single European Sky Research Programme Deployment Manager. While the definition of projects is being performed at the European Network level, theimplementation is performed through sub-regional grouping of Air Navigation Service Providers in a form of Functional Airspace Blocks. This paper analyses the level of implementation of ATM-related projects in the Functional Airspace Block Central Europe and their relation to other Functional Airspace Blocks defined in Europe. From this paper it is obvious that even though the planning of Single European Sky projects is based on the collaborative implementation of Functional Airspace Block level, the real implementation is fragmented and based on national levels.


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