Journal of Air Transport Management最新文献_第6页

A variant bagging forecasting framework for customer churn in airline 航空公司客户流失的变型套袋预测框架

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-04-04 DOI: 10.1016/j.jairtraman.2025.102795

Qiang Li , Yuangang Li , Ranzhe Jing

引用次数: 0

An empirical study investigating pilot sleep recovery patters after different time zone flights 不同时区飞行后飞行员睡眠恢复模式的实证研究

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-04-01 DOI: 10.1016/j.jairtraman.2025.102798

Junya Sun , Yang Liao , Ruishan Sun , Fei Lu , Yubin Zhou , Hongbo Jia

{"title":"An empirical study investigating pilot sleep recovery patters after different time zone flights","authors":"Junya Sun , Yang Liao , Ruishan Sun , Fei Lu , Yubin Zhou , Hongbo Jia","doi":"10.1016/j.jairtraman.2025.102798","DOIUrl":"10.1016/j.jairtraman.2025.102798","url":null,"abstract":"<div><div>Jet lag symptom recovery is an important challenge for pilots on flights across different time zones, but while many studies have investigated jet lag symptoms, few have examined jet lag symptom recovery in pilots, especially in empirical studies.</div><div>We used the Actigraph bracelet, a commonly used sleep monitoring tool in the Civil Aviation industry, to collect sleep quality indicators from pilots flying eastward or westward across different time zones (three flights from China to Europe and four from China to the Americas) and analyze the data to explore pilots' sleep recovery after flying across these zones.</div><div>Pilot sleep varied as an exponentially decreasing change function after crossing time zones, and after three days of rest, pilots' sleep reached base levels similar to that at three days prior to the flight.</div><div>By exploring pilot sleep recovery patterns across different number and direction of time zones, we modeled physiological processes underpinning jet lag symptom recovery and provided data supporting these patterns.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"125 ","pages":"Article 102798"},"PeriodicalIF":3.9,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143748553","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Accurate and fast-converging trajectory prediction based on Long Short-Term Memory neural networks 基于长短期记忆神经网络的精确快速收敛轨迹预测

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-03-26 DOI: 10.1016/j.jairtraman.2025.102777

Yuting Xi , Man Liang , Alessandro Gardi , Roberto Sabatini , Daniel Delahaye

{"title":"Accurate and fast-converging trajectory prediction based on Long Short-Term Memory neural networks","authors":"Yuting Xi , Man Liang , Alessandro Gardi , Roberto Sabatini , Daniel Delahaye","doi":"10.1016/j.jairtraman.2025.102777","DOIUrl":"10.1016/j.jairtraman.2025.102777","url":null,"abstract":"<div><div>With the emergence of Urban Air Mobility (UAM), the safety and efficiency of airspace operations will largely depend on the necessary evolutions of conventional Air Traffic Management (ATM) decision support systems. In this context, trajectory predictionwill be one of the most critical functions in future air traffic deconfliction services, and suitable algorithms will have to be implemented in both ground-based and airborne systems. These algorithms must be far more accurate, efficient and flexible than in present-day ATM. This study introduces a Long Short-Term Memory (LSTM)-based adjustable interpolation algorithm, which can be incorporated into future UAM decision support system architectures. In the absence of UAM operational data, the verification of the proposed algorithm focuses on a series of scenarios encompassing both airliner and helicopter flight trajectories. Results demonstrate that the proposed method reduces computation time by half without significantly sacrificing prediction accuracy compared to conventional linear interpolation methods. Furthermore, accuracy improvements of at least 50% are achieved compared to raw data, with no substantial increase in computational time. Additionally, the algorithm complexity is evaluated via big O notation analysis, showing that our proposed approach allows to train accurate prediction models efficiently even when a large amount of training iterations is required. With further developments, this algorithm shows high potential as the foundation trajectory prediction for UAM services in dense urban airspace, enhancing conflict detection and resolution capabilities and mitigating risks.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"125 ","pages":"Article 102777"},"PeriodicalIF":3.9,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Airfares adjustment to fuel price shocks: Evidence from the Brazilian airline market 燃油价格冲击下的机票调整：来自巴西航空市场的证据

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-03-24 DOI: 10.1016/j.jairtraman.2025.102785

Francisco Teixeira Raeder

{"title":"Airfares adjustment to fuel price shocks: Evidence from the Brazilian airline market","authors":"Francisco Teixeira Raeder","doi":"10.1016/j.jairtraman.2025.102785","DOIUrl":"10.1016/j.jairtraman.2025.102785","url":null,"abstract":"<div><div>Between January 2017 and July 2024, aviation kerosene prices experienced fluctuations due to external shocks. When the World Health Organization classified Covid-19 as a pandemic, in 2020, fuel prices fell drastically. However, as the global health crisis receded and governments abandoned mobility restrictions, demand for air travel progressively recovered. As a consequence, there was a rapid increase in prices. Additionally, in 2022, the conflict between Russia and Ukraine further intensified pressure on aviation fuel prices. Considering that fuel expenses constitute approximately one-third of airlines' cost structure, this study aims to analyze the relationship between aviation kerosene prices and domestic airfares in Brazil. The initial hypothesis suggests that, in an environment characterized by imperfect competition, the pass-through of prices between fuel costs and airfares occurs asymmetrically. Specifically, positive shocks in fuel prices would be quickly and fully reflected in airfare adjustments, while negative shocks would be delayed or have lesser impacts on airfares. However, results from a nonlinear autoregressive distributed lag (NARDL) model combined with the derivation of asymmetric cumulative multipliers do not support this hypothesis. Instead, evidence of symmetric pass-through was found, indicating that airfares respond symmetrically to fuel price shocks in the short term. Despite the dominance of only three companies in the domestic aviation market in Brazil, there are indications of fierce competition among airlines in the analyzed period. During periods of crisis, companies face difficulties in passing cost increases onto prices.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"125 ","pages":"Article 102785"},"PeriodicalIF":3.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Pilots’ training backgrounds affecting the attribution of event causal factors and airline safety management 飞行员训练背景对事件成因归因及航空公司安全管理的影响

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-03-24 DOI: 10.1016/j.jairtraman.2025.102786

Wesley Tsz-Kin Chan, Wen-Chin Li, Graham Braithwaite

{"title":"Pilots’ training backgrounds affecting the attribution of event causal factors and airline safety management","authors":"Wesley Tsz-Kin Chan, Wen-Chin Li, Graham Braithwaite","doi":"10.1016/j.jairtraman.2025.102786","DOIUrl":"10.1016/j.jairtraman.2025.102786","url":null,"abstract":"<div><div>For safety management in diverse aviation operators, it is necessary to investigate how different cultural factors interact in flight operations. Whilst prior studies have evaluated between-group cultural differences, there remains a research gap on whether within-group subcultural differences challenge the assimilation of people into the safety culture of the wider group. Cultural differences in how causal factors are perceived in the context of systemic safety deficiencies can affect the implementation of safety management strategies. In the present study, pilots from airline-sponsored, self-funded, and ex-military initial training backgrounds were invited to categorise an identical set of aircraft accident causal factors using the Human Factors Analysis and Classification System (HFACS). Results from 121 participants found significant differences amongst the three groups in the attribution of human factors conditions to organisational-level and supervisory-level categories. Significant associations amongst HFACS categories also differed amongst the three professional groups, with a considerable number of same-level associations found between ‘Preconditions for Unsafe Acts’ at the same level. Familiarity with organizational cultures was considered to impact the perception of causal factors. The finding of same-level associations presents a new contribution to the theoretical basis of the HFACS taxonomy, calling for a conceptual change in the directionality of causal sequences. The results suggest that the direction of safety remedies for different parts of the organisation is dependent on perceived relevance, which differs amongst subcultural groups. Findings are relevant to industry, particularly international airlines with diverse employee subcultural groups, for the implementation of safety management systems.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"125 ","pages":"Article 102786"},"PeriodicalIF":3.9,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143680515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Who is more vulnerable to air accidents? The spillover effects of air accidents on passenger behaviour toward non-focal airlines 谁更容易受到航空事故的影响？航空事故对非焦点航空公司乘客行为的溢出效应

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-03-22 DOI: 10.1016/j.jairtraman.2025.102784

Rui Chen , Yanning Zhang , Kun Zhou , Yuhuang Zheng

引用次数: 0

Gauging the effectiveness of airline schedule buffers in reducing arrival delays 衡量航空公司时间表缓冲器在减少到达延误方面的有效性

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-03-19 DOI: 10.1016/j.jairtraman.2025.102776

Jan K. Brueckner , Achim I. Czerny , Alberto A. Gaggero

引用次数: 0

The determinants of air travel demand to the Bahamas and its seasonality comparison with cruise travel 巴哈马航空旅行需求的决定因素及其与邮轮旅行的季节性比较

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-03-19 DOI: 10.1016/j.jairtraman.2025.102782

Li Zou, Tamilla Curtis

{"title":"The determinants of air travel demand to the Bahamas and its seasonality comparison with cruise travel","authors":"Li Zou, Tamilla Curtis","doi":"10.1016/j.jairtraman.2025.102782","DOIUrl":"10.1016/j.jairtraman.2025.102782","url":null,"abstract":"<div><div>This study explores the differences between air and cruise travel to the Bahamas in terms of seasonality and traffic growth over the period from 2010 to 2022. Despite the presence of 20 international airports and nearly 50 airlines operating in the Bahamas, air travel only accounted for 32 % of foreign arrivals to the Bahamas, as compared to 67 % by cruise travel in 2019. During the 2010–2019 period, air travel increased by 35 %, less than a 49 % growth of cruise travel. Moreover, air traffic showed consistently higher seasonality than cruise traffic, as measured by Gini coefficients over our study period. To empirically investigate the facilitating and restraining factors affecting air travel to the Bahamas, we estimate a structural equation of passenger traffic and airfare, using panel data consisting of monthly air traffic from 96 countries to the Bahamas over the years from 2015 to 2023. Our results shed light on the important role played by flight frequency, direct flight service, low-cost carriers, and airport connectivity in lowering airfare and thus driving inbound air traffic to the Bahamas. These findings will help airlines, airports, and the Bahamian government in developing strategies and policies to increase air travel and tourist arrivals in the Bahamas for its economic growth and prosperity.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"125 ","pages":"Article 102782"},"PeriodicalIF":3.9,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143654476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Service-led growth in airport economic zones: A multi-period DID analysis of China's asymmetric policy impacts 以服务业为主导的空港经济区增长：中国不对称政策影响的多时期DID分析

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-03-18 DOI: 10.1016/j.jairtraman.2025.102781

Qi Xu , Kaixin Huang , Xuezhou Zhao , Yonglei Jiang

{"title":"Service-led growth in airport economic zones: A multi-period DID analysis of China's asymmetric policy impacts","authors":"Qi Xu , Kaixin Huang , Xuezhou Zhao , Yonglei Jiang","doi":"10.1016/j.jairtraman.2025.102781","DOIUrl":"10.1016/j.jairtraman.2025.102781","url":null,"abstract":"<div><div>This study employs a multi-period Difference-in-Differences (DID) model to analyze the impact of the establishment of 22 national-level airport economic zones in China on firm agglomeration and investment growth within these regions. The results indicate that the establishment of airport economic zones has significantly promoted the growth of both the number of firms and capital investment, particularly within the service sector. However, further robustness checks reveal that only the significant impact on the service sector is consistent and valid. Sub-sector analysis shows that both business services and professional technical services are significantly affected, but only the agglomeration effect in the business services sector is confirmed by robustness tests. The study also finds that the annual number of airport aircraft movements and urban fixed asset investment have a significant positive effect on firm agglomeration. Based on these findings, this paper proposes policy recommendations such as optimizing the air transport network and improving infrastructure development. It also highlights the study's limitations and suggests that future research could expand the sample and methods to enhance the reliability of the results.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"125 ","pages":"Article 102781"},"PeriodicalIF":3.9,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143642305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fieldwide versus organization-specific crises in the global airline industry: The advantages of shared adversity 全球航空业的全领域危机与特定组织危机：共同面对逆境的优势

IF 3.9 2区工程技术

Journal of Air Transport Management Pub Date : 2025-03-16 DOI: 10.1016/j.jairtraman.2025.102783

Jungwon Min

{"title":"Fieldwide versus organization-specific crises in the global airline industry: The advantages of shared adversity","authors":"Jungwon Min","doi":"10.1016/j.jairtraman.2025.102783","DOIUrl":"10.1016/j.jairtraman.2025.102783","url":null,"abstract":"<div><div>This study explores the contrasting effects of organizational crises on operational performance by focusing on both organization-specific and fieldwide crises. Drawing on the social capital literature and empirical context of the global airline industry, it highlights the positive aspects of collective crises on organizational operational efficiency. Unlike organization-specific crises (serious accidents experienced by specific organizations), fieldwide crises (9/11 terrorist attacks) facilitate mutual support and coordinated responses to shared adversity, leading to a significant enhancement of operational efficiency of organizations in the field. Additionally, organizations can mitigate the negative performance consequences of organization-specific crises through alliance constellation membership, enabling the sharing of adversity within networks. Overall, by elucidating the contrasting effects of organizational crises depending on their scope, this study contributes to the crisis management literature and provides valuable insights into leveraging crises as strategic opportunities for organizational sustainability.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"125 ","pages":"Article 102783"},"PeriodicalIF":3.9,"publicationDate":"2025-03-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143629349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0