scholarly journals Study on Arrival Aircraft Sequencing Based on Optimization of Point Merge Procedure

2021 ◽  
Vol 2021 ◽  
pp. 1-19
Author(s):  
Yong Tian ◽  
Can Xu ◽  
Mengyuan Sun ◽  
Chao Li ◽  
Ruofei Sun
Keyword(s):  
Optimization Model ◽  
Traditional Approach ◽  
Operational Efficiency ◽  
Air Transport ◽  
Air Traffic Controllers ◽  
Air Transport Industry ◽  
Set Up ◽  
The Impact ◽  
Terminal Area ◽  
Approach Route

With the air transport industry developing dramatically, the problem of flight congestion in the terminal area (TMA) has been aggravated. Particularly for arrival aircraft, the extraholding and delay not only increase the workload of air traffic controllers and aircrew but also reduce the operational efficiency. To struggle with this issue, it is crucial to study how to improve the operational efficiency of arrival aircraft. Under the background of the rapid promotion of Point Merge (PM) procedure program in the busy TMAs in the world, this paper firstly combines the optimization of PM procedure and arrival aircraft sequencing, aiming to maximize the operational benefits of arrival aircraft in TMA. Firstly, the framework of the PM procedure is set up to replace the traditional approach route known as Standard Instrument Arrival (STAR). After that, the PM procedure optimization model is established to provide a better approach route for each arrival aircraft. Then for a flow of arrival traffic, an aircraft sequencing model is established to readjust the landing sequence of arrival aircraft, thus further improving the operational benefits of arrival aircraft. Finally, taking the TMA of Shanghai Hongqiao International Airport as the case, we compare the impact of different flight procedures and different landing sequences on the operational benefits of arrival aircraft. The experimental results show that the application of the PM procedure optimization model and sequencing model can effectively improve the operational benefits on the premise of ensuring safety, thus realizing the safe and orderly approach in TMA.

GPS –An Airline User's View

1995 ◽  
Vol 48 (3) ◽  
pp. 319-334
Author(s):  
Andrew Shand
Keyword(s):  
Air Transport ◽  
Huge Amount ◽  
Air Transport Industry ◽  
Transport Industry ◽  
Near Term ◽  
The Impact ◽  
Multi Mode ◽  
Terminal Area ◽  
Critical Locations

This paper is intended to provide an operator's view of the impact of GPS on the air transport industry. The discussion centres on use of GPS for the en-route, oceanic, terminal area and precision approach phases of flight. In summary the author suggests the following:(i) Inefficient use of airspace is costing the airlines a huge amount of money. However, GPS is not a pre-requisite of a move towards more efficient use of that airspace, although it will be required as part of the eventual CNS/ATM package. In the near term, better usage of current equipment such as IRS and DME, together with the introduction of ADS can provide the required level of accuracy for reduced separation in en-route and oceanic airspace.(ii) There is a real need to provide navigation for non-precision approach worldwide, independent of ground-based infrastructure. This is the area in which GPS can provide the most immediate improvement to safety.(iii) There are still a large number of questions hanging over GPS for precision approach. This leads the author to believe that it will not be capable of replacing ILS for the more critical Cat 2 and 3 applications quickly enough to avoid the loss of these capabilities in some critical locations. For this reason, it is postulated that MLS will be required in Europe, at least. Even if MLS is not required, there will still need to be a means of dealing with the transition away from ILS and for this reason the concept of a multi-mode receiver has been developed.

scholarly journals Development of advanced voice-supported simulators with the function of automated estimation of air traffic controllers skills

2020 ◽  
Vol 23 (6) ◽  
pp. 8-19
Author(s):  
V. E. Borisov ◽  
V. A. Borsoev ◽  
A. A. Bondarenko
Keyword(s):  
Traditional Approach ◽  
Air Traffic ◽  
Remote Access ◽  
Simulator Training ◽  
World Health ◽  
Practical Training ◽  
Air Traffic Controllers ◽  
Air Transport Industry ◽  
Health Organization ◽  
The Impact

According to the World Health Organization, the number of potential pathogens worldwide is very high, which increases the likelihood of a new pandemic. The impact of the new coronavirus infection (Covid-19) on all spheres of human activity, including the air transport industry, has shown that it is necessary to take into account the possibilities of its functioning under the new conditions. During the research, the possibility of using automated modular training systems for the air traffic controllers training in the remote access mode has been considered. The well-known simulators do not implement a justified instrumental procedure for measuring the acquired skills in air traffic services and the assessment of their development is carried out by the instructor, who reacts to the student’s actions on the basis of his experience. It is difficult for the instructor to control the development of a student’s individual skills and he has to rely on his own experience. To simulate the controller-pilot contour, pseudo-pilots are involved, manually changing the flight parameters of the aircraft and simulating R/T communication. The well-known simulators do not allow independent training. As a result, a conceptual design was formed and a promising simulator with the function of training automation and voice support was developed. The effectiveness of the proposed solutions was tested in comparison with the traditional approach to simulator training. Eventually it was found that after using a special simulator, students' mistakes decreased. Subsequently, the simulator was used for practical training of students providing the distance learning in circumstances of pandemics (Covid-19). The project showed its viability and the ability to conduct remote training of air traffic controllers, after appropriate refinement of the promising simulator.

scholarly journals Determinants of financial distress in the European air transport industry: The moderating effect of being a flag-carrier

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0259149
Author(s):  
Yin Shi ◽  
Xiaoni Li
Keyword(s):  
Financial Distress ◽  
Financial Stability ◽  
Negative Influence ◽  
Air Transport ◽  
Transport Sector ◽  
Aviation Industry ◽  
Air Transport Industry ◽  
Low Efficiency ◽  
And Performance ◽  
The Impact

Due to the COVID-induced global collapse in demand for air travel, the year 2020 was a catastrophic one for the aviation industry. A dramatic drop in operating revenues along with continuing fixed expenses drained the cash reserves of airlines, with consequent risks of financial distress and, potentially, even of bankruptcy. Flag-carriers are a special group in the airline business—they are considered to have privileges in terms of the support given by governments while, on the other hand, are often viewed as having low efficiency and performance. This study aims to estimate for European airlines the interaction effect of being a flag-carrier (flagship) with the relationship between leverage, liquidity, profitability, and the degree of financial distress. Findings obtained from analysing 99 European airlines over a period of ten years, indicate that the negative influence of leverage on financial stability is higher in the case of flag carriers (flagship). The impact of liquidity and profitability on financial health is more positive for flagship than for non-flagship carriers. These findings are not limited to contributing to the existing literature, but also have significant practical implications for executives, managers, and policy makers in the European air transport sector.

scholarly journals The Impact of Deregulation and Liberalization in the Nigerian Air Transport Industry: An Overview

2011 ◽  
Vol 2 (1) ◽  
pp. 50-68
Author(s):  
Adeniyi Olufemi Oluwakoya
Keyword(s):  
Foreign Direct Investment ◽  
Direct Investment ◽  
Air Transport ◽  
Aviation Industry ◽  
Infrastructure Development ◽  
Air Transport Industry ◽  
Transport Industry ◽  
External Sources ◽  
And Control ◽  
The Impact

The effect of globalization is fast showing its attendant effects on the Nigerian aviation industry leading to an increase in passengers’ traffic movement in Nigeria’s airports. More importantly, there seems to be a paradigm shift which affects ownership and administration of operation in the Nigerian aviation industry. This study examines among others the impact of deregulation and liberalization in the Nigerian air transport industry; the effects of the latter on operation and control changes that affect operational efficiency in the airline business; and the impacts of liberalization on attracting foreign direct investment and foreign airline participation in the Nigerian aviation industry. The methodology used for this study is documentary research, which entails search of existing published and unpublished documents and databases of stakeholders in the Nigerian aviation industry and external sources with affinity to the sector. The results of this study reveal that an unprecedented growth has been recorded in Nigeria. It includes among others: healthy competition needed for growth and development; increased participation in the industry by foreign airlines; increased foreign direct investment in the airline business and airport infrastructure development.

scholarly journals Liberalization of international air transportation markets: the effect of terrorism on market trends

2002 ◽  
Vol 13 (2) ◽  
pp. 45-58
Author(s):  
Dawna L Rhoades
Keyword(s):  
Airline Industry ◽  
Air Transportation ◽  
The United States ◽  
Air Transport ◽  
Future Prospects ◽  
Air Transport Industry ◽  
Airline Deregulation ◽  
Market Trends ◽  
Terrorist Acts ◽  
The Impact

Since the United States deregulated its airline industry with the Airline Deregulation Act of 1978, the international air transport industry has been on a path toward market liberalization. Market changes have included entry, capacity, and pricing freedom as well as increased levels of foreign ownership. The recent terrorist acts of September 11, 2001 have the potential to alter, if not reverse this course. This paper examines the forces fueling the trend toward liberalization and analyzes the impact of recent events on the future prospects of open aviation markets.

scholarly journals External Economic Effects of Air Transport Development due to the Liberalization

2021 ◽  
Vol 23 (3) ◽  
pp. A158-A173
Author(s):  
Oksana Ovsak ◽  
Maryna Vysotsʹka
Keyword(s):  
Strong Dependence ◽  
Economic Effects ◽  
Air Transport ◽  
Transport Sector ◽  
Transport Services ◽  
Air Transport Industry ◽  
Transport Industry ◽  
The Impact ◽  
The Relationship ◽  
Further Development

The paper is devoted to research of the impact of gradual liberalization of aviation market on the country’s air transport industry development and on formation of external economic components of the country's GDP connected to it directly: export and import of air transport services. The study of the relationship between the operation indicators of air transport and formed external economic effects has been conducted using comparative, correlative and regression analysis based on the statistical data of Ukraine, which has its own air transport industry and is on the path of aviation liberalization. A strong dependence of the export of air transport services on the total number of international flights and its passengers was revealed. This determines the feasibility of tracking the external economic effects in the design of changes on directions and means of further development of country's air transport sector.

scholarly journals An Evaluation of Air Transport Sector Operational Efficiency in China based on a Three-Stage DEA Analysis

2020 ◽  
Vol 12 (10) ◽  
pp. 4220 ◽  
Author(s):  
Mingli Song ◽  
Guangshe Jia ◽  
Puwei Zhang
Keyword(s):  
Environmental Factors ◽  
Development Strategy ◽  
Technological Development ◽  
Operational Efficiency ◽  
Utilization Efficiency ◽  
Air Transport ◽  
Operational Performance ◽  
Transport Sector ◽  
Transportation Services ◽  
Air Transport Industry

Air transport provides important transportation services for economic development; meanwhile, its operation requires massive resource inputs into the air transport sector (ATS). In order to ensure sustainable development of air transport industry, improve the utilization efficiency of resources, and coordinate the development of the ATS and the macroeconomy, the operational efficiency of the industry should be evaluated accurately. However, few studies have analyzed the operational performance of ATSs across different regions. This study therefore constructs an index system and applied a three-stage data envelopment analysis (DEA) approach, which considers various regional environmental factors and statistical noise, to evaluate regional ATS operational performance. China’s 30 provincial ATS operational efficiencies in year 2017 are empirically evaluated using the proposed model. The empirical results show that different levels of environmental factors, such as regional GDP, openness, technical markets, technological development, and consumption, pose various influences on provincial ATS operational efficiency in China. Operational performance evaluation results eliminating these environmental effects in the third stage show considerable differences with that stage 1 results. In addition, corresponding development strategy implications in different provinces and regions are put forward according to the evaluation results.

The New Employee-Relations Climate in Airlines

ILR Review ◽  
1983 ◽  
Vol 36 (2) ◽  
pp. 167-181 ◽  
Author(s):  
Herbert R. Northrup
Keyword(s):  
International Association ◽  
Air Transport ◽  
Employee Relations ◽  
Union Power ◽  
Air Transport Industry ◽  
Transport Industry ◽  
New Employee ◽  
Recent Developments ◽  
The Impact

This study examines recent developments in the air transport industry and assesses the extent to which deregulation has been a compelling factor of change. Among the problems examined are the entry of nonunion carriers into the market, the flight controllers' strike, the decline of traffic during the recent recession, and particularly the differing union approaches to the industry's problems, as exemplified by those of the Air Line Pilots Association and the International Association of Machinists and Aerospace Workers. The author concludes that the impact of deregulation has been significant and is likely to reduce union power permanently in this industry, but he is not certain that the recent ventures in union-management cooperation will survive the end of the recession and the lifting of competitive restrictions imposed as a result of the flight controllers' strike.

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