scholarly journals A High-Precision Fatigue Detecting Method for Air Traffic Controllers Based on Revised Fractal Dimension Feature

2020 ◽  
Vol 2020 ◽  
pp. 1-13 ◽  
Author(s):  
Zhiyuan Shen ◽  
Guozhuang Pan ◽  
Yonggang Yan

As air traffic volume increases, the air traffic controller (ATC) fatigue has become a major cause for air traffic accidents. However, the conventional fatigue-detecting methods based on speech are neither effective nor accurate because the speech signals are nonlinear and complicated. In this paper, an ATC fatigue-detecting method based on fractal dimension (FD) is proposed. Firstly, a special speech database of ATC radiotelephony communications is constructed. These radiotelephony communications are obtained from Air Traffic Management Shandong Bureau of China. Then, speech signals implement a wavelet decomposition and FD calculation. The calculation result shows the significant difference among the FD of the speech signal before and after fatigue. Furthermore, a novel fatigue feature of the ATC based on the FD of speech is built. A series of experiments are conducted to detect the ATC fatigue with the fatigue feature comparison process and a support vector machine (SVM). The results show that the accuracy in detecting ATC fatigue based on FD was 92.82%, which are higher than the state-of-the art methods. The research provides a theoretical guidance for Air Traffic Management Authority on detecting ATC’s fatigue, while it may provide reference for the fatigue assessment in other professional fields of civil aviation.

2021 ◽  
Vol 50 (1) ◽  
pp. 1-11
Author(s):  
Małgorzata Polkowska ◽  

Space Traffic Management (STM) is a new concept referring to space activities. The highest priority is the safety and security of outer space and all conducted operations. There is no definition of STM. There is an urgent need to regulate STM providing safety and security regulations at the international, regional, and national levels. Because there is no STM definition, the regulator might use the example of existing regulations of the International Civil Aviation Organization on Air Traffic Management (ATM). European EUSST is a good example of being a “precursor” of STM. However, many questions are still open regarding specific regulations needed to create an STM system, such as at which level they should be made: globally, regionally, or nationally.


2021 ◽  
Vol 13 (10) ◽  
pp. 5451
Author(s):  
Utku Kale ◽  
István Jankovics ◽  
András Nagy ◽  
Dániel Rohács

The International Civil Aviation Organization is estimated that the number of domestic and international passengers will be expected to reach six billion by 2030. This exponential growth in air transport has resulted in a wide range of adverse effects such as environmental impacts. The purpose of this research is to develop new air traffic management, and operator (pilots, air traffic controllers) load measuring systems in order to save fuel, and flight time, thereby reducing environmental impact, carbon emission, greenhouse gas generation, noise pollution, and operating cost. This paper deals with: (i) dynamic sectorization and airspace configuration (ii) introduction of the highly dynamic approach and landing procedures, (iii) dilemmas of human in sustainability (related to the individuals, the society, the non-governmental organizations, and the managers), and (iv) development of dedicated non-intrusive operator supporting systems based on eye-tracking, heart rate, and electrodermal activity. Due to the consequent effects of these developments, the dynamic sectorization and air space configuration may eliminate the task overload and reduce the actual operator load by 30–40%. With the developed concept of dynamic approach and landing procedures, aircraft will be able to follow better trajectories to avoid residential areas around airports to (i) reduce ground noise, and emission, (ii) avoid encounters severe weather and prevent incidents and accidents, and (iii) decrease landing distance up to 56% in compared to the “published transition route”.


2019 ◽  
Vol 72 (5) ◽  
pp. 1140-1158
Author(s):  
Busyairah Syd Ali ◽  
Nur Asheila Taib

In Air Traffic Control (ATC), aircraft altitude data is used to keep an aircraft within a specified minimum distance vertically from other aircraft, terrain and obstacles to reduce the risk of collision. Two types of altitude data are downlinked by radar; actual flight level (Mode C) and selected altitude (Mode S). Flight level indicates pressure altitude, also known as barometric altitude used by controllers for aircraft vertical separation. ‘Selected altitude’ presents intent only, and hence cannot be used for separation purposes. The emergence of Global Navigation Satellite Systems (GNSSs) has enabled geometric altitude on board and to the controllers via the Automatic Dependent Surveillance-Broadcast (ADS-B) system. In addition, ADS-B provides quality indicator parameters for both geometric and barometric altitudes. Availability of this information will enhance Air Traffic Management (ATM) safety. For example, incidents due to Altimetry System Error (ASE) may potentially be avoided with this information. This work investigates the use and availability of these parameters and studies the characteristics of geometric and barometric data and other data that complement the use of these altitude data in the ADS-B messages. Findings show that only 8·7% of the altitude deviation is < 245 feet (which is a requirement of the International Civil Aviation Organization (ICAO) to operate in Reduced Vertical Separation Minimum (RVSM) airspace). This work provides an alert/guidance for future ground or airborne applications that may utilise geometric/barometric altitude data from ADS-B, to include safety barriers that can be found or analysed from the ADS-B messages itself to ensure ATM safety.


1993 ◽  
Vol 46 (3) ◽  
pp. 326-335 ◽  
Author(s):  
D. Marten

Europe is moving towards a more closely integrated air traffic management system through the European ATC Harmonization and Integration Programme (EATCHIP). This paper explains the need for such an approach and how it was brought about by capacity limitations in the current European air traffic system. It describes the key strategy of progressive harmonization and integration by the various States, examines the roles of the European Civil Aviation Conference (ECAC), the International Civil Aviation Organization (ICAO), EUROCONTROL and the European Commission in the management of the Air Traffic Management (ATM) development programmes. It also reviews the longer-term planning of a future system with an enhanced relationship between the air and the ground, and addresses the navigation aspects of ATM systems.


2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Fangzi Liu ◽  
Minghua Hu ◽  
Wenying Lv ◽  
Honghai Zhang

Trajectory-based operation is a new technology that will be developed in the next generation of air traffic management. In order to clarify the optimization space of fuel consumption and emission impact on the environment under the specific operation limitation of air traffic management in the process of aircraft climb, an aircraft climb performance parameter optimization model considering the environmental impact is established. First, the horizontal and vertical climb models are established for the aircraft climb process, and then the optimization objectives are constructed by considering the impact of fuel consumption, exhaust emissions on air temperature, and the convenience of the flight process. Finally, the multiobjective model is solved by genetic algorithm. The B737-800 civil aviation aircraft is selected for simulation experiment to analyze the impact of speed change on the optimization target. The results show that with the change of speed, the fuel consumption and temperature rise are different, and the climb performance parameters of the aircraft are affected by the maximum RTA. By optimizing the flight parameters of the aircraft, it can effectively reduce the impact of flight on the environment and provide theoretical support for the sustainable development of civil aviation.


Author(s):  
Olga Vorobyeva ◽  
Juraj Bartok ◽  
Peter Šišan ◽  
Pavol Nechaj ◽  
Martin Gera ◽  
...  

The Single Europe Sky Air Traffic Management Research (SESAR) program develops and implements innovative technological and operational solutions to modernize European air traffic management and to eliminate the negative environmental impacts of aviation activity. This article presents our developments within the SESAR Solution “Safety Support Tools for Avoiding Runway Excursions”. This SESAR Solution aims to mitigate the risk of runway excursion, to optimize airport operation management by decreasing the number of runway inspections, to make chemical treatment effective with respect to the environment, and to increase resilience, efficiency and safety in adverse weather situations. The proposed approach is based on the enhancement of runway surface condition awareness by integrating data from various sources. Dangerous windy conditions based on Lidar measurements are also discussed as another relevant factor in relation to runway excursions. The paper aims to explore four different data mining methods to obtain runway conditions from the available input data sources, examines their performance and discusses their pros and cons in comparison with a rule-based algorithm approach. The output of the SESAR Solution is developed in compliance with the new Global Reporting Format of the International Civil Aviation Organization for runway condition description to be valid from 2020. This standard is expected to provide concerned stakeholders with more precise information to enhance flight safety and environmental protection.


2021 ◽  
Vol 2 (3) ◽  
pp. 11-22
Author(s):  
Shafazawana Mohamed Tharikh ◽  
Siti Raba’ah Hamzah ◽  
Nasrudin Baidi ◽  
Jegatheesan Rajadurai

Employee wellbeing is related to the daily work and life experience of all employees which should be seriously viewed by the managers to prepare employees to face head-on on new ways of working due to the change in the work environment. Concentrating on individual development has long-term benefits for the individual, organization, and society but yet the individual is frequently overlooked by organizations. Self-efficacy is a belief that someone can perform successfully. When the self-efficacy of employees is high, the employees can work independently and efficiently. Characteristics of high self-efficacy can be characterized as a person that would take a new challenge is something positive and do not easily give up (initiative), keep trying (effort), and prepared all the time for any problems in the future (persistence). A quantitative approach with cross-sectional design as a survey method has been employed in this study and purposive sampling was used as the sampling technique. A total of 209 usable questionnaires were processed in this study. Partial Least Square-Structural Equation Modelling (PLS-SEM) was used to validate the research model and to test the hypotheses. The Air Traffic Management sector is the largest sector in the Civil Aviation Authority of Malaysia (CAAM) and the primary job responsibility of Air Traffic Controllers (ATCs) is to control and navigate the movement of planes especially during take-off and landing. The job characteristics are distinct, and it leads ATCs to be stressful and demanding job. This study found that self-efficacy is related to employee wellbeing. ATCs with high self-efficacy produce good initiatives, effort, and persistence in doing their job. Undoubtedly, self-efficacy will help ATCs to predict their future planning.


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