Analyzing the effect of aviation infrastructure over aviation fuel consumption reduction

The purpose of this paper is to examine the effect of various aviation infrastructure dimensions over aviation fuel consumption reduction (AFCR) performance. This study is an effort that considers the role of dimensions collectively from all aspects belonging to aviation infrastructure. The relevance of dimensions and constructs for hypothesis development are based on extensive literature review. Exploratory factor analysis (EFA) and Confirmatory Factor Analysis (CFA) were performed in the consecutive purification processes. Also, hypothesis testing was conducted using Structural Equation Modeling (SEM). A customized questionnaire was developed for collecting data from both kinds of respondents: Aviation industry experts and academic experts. Out of 382 approaches through mail survey, a total of 194 valid responses were collected. Analysis of the results shows the positive and significant impact of various factors such as: airport design, airspace management and air traffic control over the aviation fuel consumption reduction. Maximum importance is adjudged on air traffic control (ATC) and airspace route flexibility. The results of this study will encourage airlines and airport development authorities to increase their insight over aviation infrastructure, also to perform deeper analysis and find out precise values for real life implications.     

Determinants of blockchain adoption in the aviation industry: Empirical evidence from Korea

Recently, blockchain technology has gradually been used in the logistics and supply chain sector. However, research related to blockchain applications in aviation remains in its infancy. This research provides actionable insights into the determinants of blockchain adoption in the aviation industry. The technology acceptance model is applied to explain the aviation industry's intention to adopt blockchain technology for potential applications and future improvements. Six factors are developed by reviewing the literature. Moreover, a two-step structural equation modeling approach with confirmatory factor analysis is used to analyze the research data and test hypotheses in this study. Results reveal that tracking and tracing, digitalized management, air traffic management, regulatory governance and industry standards, and technological improvements and optimization on efficiency exert a positive influence on intention to use blockchain. Moreover, future improvements in regulatory governance and industry standards, and technological improvements and optimization on efficiency are demonstrated to enhance users' perceived usefulness in tracking and tracing, digitalized management, and air traffic management.     

The Air Liberalisation Index as a tool in measuring the impact of South Africa's aviation policy in Africa on air passenger traffic flows

In Africa, the Yamoussoukro Decision (YD) to date remains the single most important air transport reform policy, the continent-wide implementation of which remains pending. This study employs the Air Liberalisation Index (ALI), developed by the Word Trade Organisation (WTO) Secretariat, to measure the impact of each of the seven quantifiable market access features of South Africa's aviation policy in Africa on air passenger traffic flows. A fixed one-way panel regression technique was applied to panel data, representing five air transport markets: intra-African, the SADC, East African, West African and North African over two time periods (2000–2010; 2006–2010). The results proved to be significant in three markets, intra-African, the SADC and East African and provide new insights into the relationship between air passenger traffic flows and aviation policy in the South African – intra-African and regional contexts.     

Characterizing the Brazilian airspace structure and air traffic performance via trajectory data analytics

This paper presents a data-driven approach for multi-scale characterization of the Brazilian airspace structure and air traffic operational performance from aircraft tracking data recorded by surveillance systems. Unsupervised learning is performed with a flight trajectory clustering analysis to automatically identify spatial traffic patterns in both the terminal and the en route airspace for major origin-destination pairs of the Brazilian air transportation system. Based on the as-flown route structure learned, quantitative metrics are developed to describe the structural efficiency of the airspace and the operational efficiency of the traffic flows. For this, actual flight trajectories are projected onto reference nominal trajectories in space and time. The results allowed for cross-route comparisons of air traffic flow efficiency across multiple flight phases as well as for the identification of causal factors for trajectory deviations from nominal routes. An interactive data analytics tool is also created to output performance statistics and air traffic visualizations. With the provision of a systematic data-driven approach for characterizing actual air traffic operations, the analytics framework is envisioned to assist airspace design and performance monitoring processes and to provide the basis for developing predictive capabilities in support of traffic flow management.     

International standardization compliance in aviation

The commercial aviation industry is global in the sense that passengers travel around the world from destination to destination. It is also global in that the states of the world (countries) regulate the industry domestically and internationally. There is a unique stage where the world comes together to promote aviation, discuss ideas and establish international standards. This stage is the International Civil Aviation Organization (ICAO). The 191 current member states signed treaties acknowledging their commitment to abiding by the standards and practices established by ICAO. No state is 100 percent compliant with international standards, however, and the purpose of this paper was to explore the relationship between the fulfillment of compliance by individual member states and the safety of the commercial aviation industry in terms of fatality rates. Using a Negative Binomial regression, the results suggested that there was a relationship between compliance with international safety standards and fatalities, as well as associations between fatality rates and member states levels of GDP and population. Implications of this research apply to all ICAO member states as the concerns grow over growing air travel and airspace congestion over the next several decades.     

Institutional and structure changes in air navigation service-providing organizations

Airlines markets throughout the world have gradually gone through a liberalization process over the past 25 years. Regulatory changes involving other parts of the air transportation supply chain have globally been the subject of far less dramatic changes, and indeed some elements are still largely publicly owned monopolies. There have, however, been gradual reforms to the ways in which are traffic control and navigation services are being provided. A diversity of models has gradually emerged, ranging from traditional state ownership, through a variety of corporatized structures, to regulated private companies. While many of these new institutional forms are still at a relatively early stage in their history and development, there is still scope, using fairly well-established managerial economic approaches, to assess the implications of their structures. The analysis is based on a multi-dimensional performance matrix (e.g., including safety and financial considerations) and embraces a diversity of institutional models from around the world (e.g., a public/privatize partnership in the UK, a non-share corporation in Canada and Switzerland, and state owned in France and the US).     

How influential factors affect aviation networks: A Bayesian network analysis

The aviation industry was the catalyst for the economic development of advanced cities, and there has been a close relationship between the development of cities' aviation industries and economic indexes. Researchers have long been interested in investigating which economic factors affect the passenger and cargo volumes of airports. By leveraging statistical analysis, most existing research only indicates the significant factors affecting aviation networks and quantifies the positive or negative relationship between those factors and aviation passenger volume. However, it is difficult to envisage how the degree of changes in economic factors affects aviation networks, especially passenger and cargo volume. This paper utilizes Bayesian network analysis to bridge this gap. The airport-level data collected from OAG was combined with city- or country-level economic data that are exploited to build the Bayesian network. We find that GDP and inflation directly influence passenger and cargo volume, while fuel prices directly influence only cargo volume. Both networks change with time, indicating that evolving external economic factors influence the network. This study is the pioneer in using Bayesian network analysis to analyze aviation networks. We identify how airport passenger and cargo volumes change with respect to different degrees of economic factors change. In addition, the Bayesian network exhibits the output in a probabilistic way to fully address the uncertainty worldwide. The findings could potentially facilitate policymakers’ decisions to improve global aviation network development.     

Air transport policy and its impacts on passenger traffic and tourist flows

This paper attempts to derive policy indices to quantify the restrictiveness of the aviation regimes in the Asia-Pacific region, and use the indices to establish the relationship between people movement and liberalisation in policy. Australia and Singapore have the most liberalised environment in this region. Evidence has been found that passenger traffic between city-pairs has been hampered by the restrictive air transport policies. Restrictions on the air transport sector also have a substantial negative impact on bilateral tourist flows. Further liberalisation in this sector could help build up a stronger tourism industry.     

The role of turboprops in China’s growing aviation system

The Chinese aviation system is in a period of rapid growth, with significant growth in second tier and emerging cities. Lower density cities could be well served by regional aircraft, either regional jets or turboprops, which offer different qualities and a different future for Chinese aviation. Turboprops offer a high level of fuel efficiency compared with regional jets which may improve the cost economics for carriers and reduce the air quality and climate impacts of a growing aviation system in a region where air quality and greenhouse gas emissions are a serious concern. However, regional jets are known for their superior quality of service and faster travel speeds. We begin with a spatial analysis of existing Chinese short-haul aviation networks and find that turboprops are deployed in limited number and are dispersed throughout the country. Their limited use, however, is not because of their cost economics. For the existing regional jet network we estimate the trade space of fuel and time for the replacement of regional jets with turboprops and find that all regional jet routes in China would generate savings if replaced with turboprops. We next establish future short-haul aviation routes between new and emerging airports and estimate the likelihood that a turboprop will be used. The finding that the most viable turboprop markets are spatially dispersed through the country validates considering turboprop investment at the state-level as a component of the established Chinese aviation sustainability initiative.     

The market development of aviation biofuel: Drivers and constraints

Aviation biofuel is technically viable and nearing the commercial stage. In the last ten years, biofuels have moved from relative obscurity to a point where certain types of fuel have become fully certified for commercial use in up to 50% blends with standard jet fuel and commercial partnerships between airlines and biofuel producers are being established. Yet despite numerous successful test flights, aviation biofuels have yet to become widely commercialised. Drawing on the findings of in-depth interviews with leading global aviation biofuel stakeholders undertaken between October and December 2011, this paper identifies and examines the perceived factors that are affecting the market development of biofuels for aviation. The paper illustrates that market development is being driven by the combined effects of rising jet fuel prices, the potential future impact of emissions legislation and concerns about fuel (in)security. However, commercialisation is being constrained by high production costs, limited availability of suitable feedstocks, uncertainty surrounding the definition of the sustainability criteria, and a perceived lack of both national and international political and policy support for aviation biofuel. The implications of these findings for commercial aviation and the future development of global market for aviation biofuel market are discussed.     

Risk factors associated with flying in adverse weather: From the passengers' point of view

Risk factors on the demand side of aviation safety are rarely addressed as the focus of research is most often placed on the supply side of aviation service. Even though airlines have the prerogative to cancel flights in the face of adverse weather, stranded passengers have to be reckoned with in the event of cancellation. Passengers' awareness of the risks associated with flying in adverse weather may help mitigate the confrontation as well as induce passengers to take the lead in adopting preventive measures. The aim of this article is to study the attitudes air travelers say they have towards flying in adverse weather, as well as risk factors regarding cancellation of trips in adverse weather. A conceptual framework is presented which outlines the links between risk factors and preventive measures. Data generated from a quantitative survey of 1145 air travelers, conducted in July 2015 at Taiwan's Kaohsiung International Airport, is used to examine this framework using correlation analysis and one-way analysis of variance (one-way ANOVA). The factors of trust, risk perception and domestic destination are found to be positively related to passengers' stated attitude toward taking preventive measures. Income, purpose of the trip and direct experience generate ambiguous results. The outcome also suggests the following paradox: while pilots make the final decision regarding aviation safety in adverse weather, they appear to enjoy the lowest level of passenger trust.     

Government support to airlines in the aftermath of the COVID-19 pandemic

This paper assesses government support measures to the air transport sector following the outbreak of the coronavirus disease (COVID-19) pandemic from two points of view. First, it explores the factors that shape governments’ willingness to support airlines. This is followed by a discussion on the various types of support that may be provided and how country-specific parameters influence the choice of measures. Second, it analyses the implications of government support in three dimensions relevant to air transport policy: competition and liberalisation, airline ownership and control, and environmental sustainability. The analysis suggests that most governments give a high priority to maintaining air transport connectivity in order to protect economic activity and jobs, in aviation itself and in related sectors such as tourism. The trade-off between ensuring connectivity and maintaining competition after the COVID-19 pandemic is a challenge with several political and economic dimensions. The re-orientation of public policy in the aftermath of the pandemic may limit the relative importance of the policy priorities that shaped the evolution of the air transport sector before the crisis, especially those related to climate change and the environment. The role of government and public authorities at all levels – especially the type and duration of measures affecting transport operations – will be crucial for the future development of the aviation industry.     

The economic impact of aviation: A review on the role of market access

In recent decades, advancements in telecommunications and (air) transportation have driven globalisation processes. Consequently, policymakers and scholars view access to transportation as an essential prerequisite for economic development. For aviation, existing empirical studies have attempted to estimate the wider economic impacts from regional, country-level and global perspectives. However, no theoretical framework has yet been presented that comprehensively captures the full set of mechanisms by which aviation can contribute to economic development. Such a framework would cover both positive and negative regional impacts, as well as the mechanisms and spatial distribution behind them. In this paper, we use a New Economic Geography approach to comprehensively describe the impact mechanisms. We then apply this theoretical framework to an empirical study of metrics of air transport supply, which policymakers and researchers can use to assess how well airports and their surrounding regions are connected by means of the air transport network. The results of our analysis can inform scholars and policymakers on how air transport can shape economic geography and the productivity of economic systems. The results might also provide guidance for future empirical work on the wider economic impacts of air transportation.     

Stated-preference analysis to estimate the domestic transport demand following the future entry of LCCs and the inauguration of the Linear Chuo Shinkansen in Japan

Using a stated-preference survey, we examine changes in air transport demand by the entry of low cost carriers into domestic service, and with the beginning of operation of the Linear Chuo Shinkansen. In order to construct a choice model, we estimate the Nested-Logit model parameters by the two kinds of travel purposes in order to consider the differences in the price-sensitivity between business and non-business travelers. Simulation results for the each targeted OD vary in the shares of each transportation mode, depending upon the travel times, the aviation network, travel purpose. Non-business travelers who are more price-sensitive are less likely to choose the Linear Chuo Shinkansen with higher fares. On the route between the metropolitan area and Kinki area, total aviation demand will increase by the entry of LCCs to/from Tokyo-Haneda airport even when the Linear Chuo Shinkansen begins operating, showing that the development of the Linear Chuo Shinkansen service will not prevent strong growth in aviation demand for the trunk domestic routes.     

Air transport and tourism – a systematic literature review (2000–2014)

This paper reviews the literature at the intersection between air transport and tourism research. While air transport and tourism are mutually dependent sectors, there is little research on their interaction. A systematic literature review method was used to select and analyse relevant journal articles published in 54 Australian Business Dean Council (ABDC) A*, A, or B-ranked journals from 2000 to 2014. Research themes, leading researchers, their institutions, and geographical locations are discussed. An extended framework for classification of the literature is developed through the content and thematic analysis. Among the identified research themes, ‘environment’, ‘passengers’, and ‘airlines’ are found to be the most common. The use of a systematic review has identified gaps in the literature and directions for future studies. Some of the identified areas that are showing a growing interest in the interrelationship between aviation and tourism include air route/service development; passenger experiences; low-cost carriers and their impact on tourism; implications of new direct long-haul flights; and carbon offsets.     

Effects of work shifts on fatigue levels of air traffic controllers

Fatigue is one of the most important issues since it is considered to be a potential risk factor for human error. Most research related to human fatigue in the aviation industry targets pilots, yet air traffic controllers also experience elevated levels of fatigue that affects aviation safety. Despite this, fatigue is often ignored in literature, as it is a mental and physical status that is difficult to measure. The International Civil Aviation Organization (ICAO) announced the concept of the Fatigue Risk Management System (FRMS) in Annex 6 in 2011, which provides suggestions to reduce aircrew fatigue. In 2016, the Civil Air Navigation Services Organization (CANSO), ICAO, and the International Federation of Air Traffic Controllers' Associations (IFATCA) published the Fatigue Management Guide for Air Traffic Service Providers and for the first time proposed recommendations for air traffic controllers (ATCs) to address this issue. Based on the management guide, this research used the Samn-Perelli fatigue scale to measure air traffic controllers' fatigue levels in an international aerodrome control tower in Taiwan. The results indicated that there were significant differences between day/night shifts, time periods (shift start time, before break time, after break time, and shift end time), and various work schedules. The results also revealed the importance of the timing of the breaks and time on task when arranging work schedules. This research contributes to aviation safety by investigating ATCs' fatigue levels in current work shifts, thereby helping related units to improve and adjust shift schedules in order to reduce the risks related to fatigue.     

A review of research on risk and safety modelling in civil aviation

Safety is considered as some of the most important operational characteristics of contemporary civil aviation. An extensive regulatory structure has been established to supplement the private airline, airport and air navigation systems, incentives to limit the risks of flying. This paper reviews the research on risk and safety modelling in civil aviation. In such a context, the basic concepts and definitions of risk, safety and their evaluation are described. The review focuses on four categories of models for safety assessment: causal for aircraft and air traffic control/management operations, collision risk, human factor error and third-party risk.     

A holistic approach to evaluating the effect of safety barriers on the performance of safety reporting systems in aviation organisations

Safety reporting systems are a necessary component of any Safety Management System (SMS) in contemporary aviation organisations. Improving the performance of safety reporting systems can significantly enhance the reliability of safety information and allow the implementation of more effective risk assessment processes. Previous researchers have identified several barriers that influence the effectiveness of safety reporting systems, ranging from individual barriers to organisational issues. However, none of these studies has addressed the concomitant effect of the different barriers as a means of determining the overall effect on the performance of existing reporting systems. This paper proposes a holistic approach to this problem by developing a model that can help to determine the cumulative effect of organisational, working environment and individual barriers on the performance of a safety reporting system in an aviation organisation. The Partial Least Squares Structural Equation Modelling (PLS-SEM) technique was used to examine the relationships amongst the different variables considered in our study. The model was constructed using a broad range of data collected from a survey conducted in a military aviation organisation, with the purpose of identifying the barriers to reporting in this particular context. Results show that the proposed model allows to accurately quantify the impact of the various concomitant barriers in the reporting system, providing a powerful resource to assist stakeholders in the decision-making process that is inherent to the implementation of tailored actions to improve the safety performance of aviation organisations.     

The effect of aviation responses to the control of imported COVID-19 cases

The outbreak of the COVID-19 pandemic has a lasting and unprecedented negative impact on the global aviation industry. While countries such as China have successfully curbed the domestic outbreak of the virus with various restrictive and preventive measures, the challenge of avoiding imported cases remains. More importantly, it is still unclear to what extent these implemented aviation emergency responses have effectively mitigated the transmission risk of the virus. This paper provides an empirical assessment of aviation responses to the control of imported COVID-19 cases, with a focus on the following three strategies: the “circuit breaker” policy, the “negative Nucleic Acid testing (NAT)”, and the “double negative tests” requirement. Non-recursive structural equation models (SEM) with latent variables were applied to detailed international flight data and individual epidemic survey data of Guangzhou, China, between May 1 and November 30, 2020. The results show that the “double negative tests” measure has a positive effect on eliminating the number of SARS-CoV-2 carriers, while the effects of single “circuit breaker” and its co-intervention with “negative NAT” are conterproductive. This study provides important implications to civil aviation agencies in regard to medium and long-term risk control of imported cases. Specifically, although the circuit breaker mechanism was designed to target on the risk control of imported COVID-19 cases, it may be more effective to carefully maintain a timely and reliable pre-boarding screening and testing to curb the number of imported cases.     

天津国际航空物流中心发展对策探讨

为牢牢把握当下航空物流发展的利好趋势,高质量落实交通强市建设要求,在分析国内外航空物流发展现状的基础上,运用SWOT法从优势、劣势、机会、威胁4个维度,对天津国际航空物流中心发展的战略环境进行分析,并且从货源、通达性和服务3方面构建国际航空物流中心CCS模型,理清发展思路,提出天津国际航空物流中心建设优化对策,即培育稳定货源、优化现有航线网络结构、完善综合交通枢纽体系、优化综合营商环境、研究专项"客改货"和全货机保障方案、完善航空物流发展政策体系。