Journal of Air Transport Management最新文献

{"title":"The role of airports in enhancing total factor productivity: Evidence from listed companies in China","authors":"Ge Song ,&nbsp;Jing Tan ,&nbsp;Zhenjiu Yao","doi":"10.1016/j.jairtraman.2024.102738","DOIUrl":"10.1016/j.jairtraman.2024.102738","url":null,"abstract":"<div><div>China's civil aviation industry has undergone far-reaching and comprehensive reforms to modernize and build a thriving industry in the 21st century. Developing aviation helps stimulate regional economic growth and improves local business efficiency. This study examines the impacts of air transport development on total factor productivity of local companies and explores the mediating effects of enterprise innovation and investor attention. Firstly, this paper calculates air accessibility as a measure of air transport development and uses the Olley-Pakes (OP) method to calculate total factor productivity of companies. Secondly, this paper adopts the panel fixed effect model to examine the impacts of air transport on total factor productivity based on the data of listed companies in China from 2000 to 2019. Thirdly, this paper constructs a mediating model to explore the mechanisms by considering enterprise innovation and investor attention as mediator variables. In the end, this paper explores the possible adverse risks of local government debt and population loss associated with the high costs of airport infrastructure construction and operation.</div><div>This paper finds that: (1) Air transport development has greatly improved total factor productivity of companies and the impacts are differentiated by the heterogeneity of city sizes, ownership structures company types, industries, and distance to the nearest airport. (2) The positive influences of airport transport development for total factor productivity are mediated through the influence paths of enterprise innovation and investor attention. (3) Airport infrastructure investment are conductive to high local debt risks, but after the operation of new projects, the positive economic impacts start to mitigate the high local debt risks. (4) New airport infrastructure promotes population growth for both airport cities and cities without airports.</div><div>This study shows clear and consistent evidence that air transport contributes to total factor productivity. When selecting a location or developing business strategies, non-state-owned, labor-intensive, and technology-intensive companies should prioritize the advantages of air transportation to reduce transportation costs and enhance productivity.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102738"},"PeriodicalIF":3.9,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143169433","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}

{"title":"Investigating the impacts of ASEAN-EU comprehensive air transport agreement on the carriers’ competitive dynamics","authors":"Muhammad Danish Danial Bin Mohamed Anuar ,&nbsp;Nadine Itani ,&nbsp;John F. O'Connell ,&nbsp;David Warnock-Smith","doi":"10.1016/j.jairtraman.2025.102739","DOIUrl":"10.1016/j.jairtraman.2025.102739","url":null,"abstract":"<div><div>The Association of Southeast Asian Nations (ASEAN) and the European Union (EU) signed the Comprehensive Air Transport Agreement (CATA) between their member states in October 2022.</div><div>The ASEAN-EU CATA is the world's first bloc-to-bloc air transport agreement and reflects the latest policy thinking in air transport regulation. The agreement allows the carriers of the two blocs to operate passenger and cargo services between and beyond both regions, by exercising Fifth Freedom traffic rights and liberalising codeshare restrictions.</div><div>Since 2014 and despite both sides showing a commitment to elevating their aviation relations to a new level, the two regions remain different regarding the level of domestic air travel market integration and liberalisation. These intrinsic variations contribute to creating disadvantages in the competitive position of ASEAN-based carriers when compared to their EU counterparts.</div><div>This study aims to investigate the possible implications of the CATA on the competitive dynamics of airlines in both markets, by applying the Competitive Dynamics Model to analyse the interactions in the strategies and responses, and its implications on the performance of the relevant air carriers. Using secondary data, a series of quantitative indicators are utilised to examine selected ASEAN and EU carriers' awareness, motivation, and ability to respond to the novel changes in the industry's regulatory and competitive environment.</div><div>While the findings indicate the strategic responses of both ASEAN and EU carriers is more focussed on interline agreements and joint ventures, competitive rivalry is to remain intense for popular destinations such as those to and from Thailand and Singapore.</div><div>The study analyses the advantages in the scheduled frequencies and fares of the big three Middle Eastern carriers and Turkish Airlines, over home airlines in major ASEAN and EU hubs. The CATA-induced partially liberalised market will drive more partnerships among ASEAN and EU carriers to align schedules in their respective hubs as a response to competition posed by Middle Eastern carriers. The findings suggest that the possible actions and reactions of airlines to one another are precursors to driving changes in market structure over time within the new ASEAN-EU CATA framework.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102739"},"PeriodicalIF":3.9,"publicationDate":"2025-01-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168404","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}

{"title":"MILP-based cost and time-competitive vehicle routing problem for last-mile delivery service using a swarm of UAVs and UGVs","authors":"Sunghun Jung","doi":"10.1016/j.jairtraman.2024.102736","DOIUrl":"10.1016/j.jairtraman.2024.102736","url":null,"abstract":"<div><div>There are numerous studies on the unmanned vehicle routing problem (VRP) considering battery constraints in the areas of 1) path-planning problem based on intelligent task allocation and 2) determination of routes according to defined objectives and constraints. However, in most previous literature, only a simple linear approximation of battery energy consumption is considered, producing unrealistic results. In this study, a cost and time-competitive VRP is established and solved using mixed-integer linear programming (MILP), considering the relationship between the cost and electricity consumption of unmanned aerial vehicles (UAVs) and unmanned ground vehicles (UGVs). In particular, the maximum flyable and drivable ranges of the UAV and UGV were calculated by setting a linear capacity degradation equation based on the state of health, considering a limited number of (dis)charge cycles. This approach guarantees more realistic optimization results due to the adaptation of the detailed characteristics of battery-related information. Numerical analyses using two solvers based on MILP, 1) COIN-OR Branch and Cut (CBC) and 2) Gurobi, were performed with four different scenarios and four corresponding cases for each scenario by varying the number of demanders. The results show that using a combination of UAVs and UGVs slightly reduces the cost by approximately 1% but significantly reduces the delivery completion time by approximately 79%. The simulation running time was approximately 1.1 s for all the cases, and the CBC solver operates faster than the Gurobi solver by approximately 0.93%.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102736"},"PeriodicalIF":3.9,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168756","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}

{"title":"Sea and air intermodal freight transport from East Asia to North America: From the viewpoint of cost efficiency","authors":"Kazuhiko Ishiguro,&nbsp;Hiroyuki Ishihara,&nbsp;Mikio Takebayashi","doi":"10.1016/j.jairtraman.2024.102737","DOIUrl":"10.1016/j.jairtraman.2024.102737","url":null,"abstract":"<div><div>The implementation of international sea and air intermodal transport (Sea &amp; Air) will enhance global transport competitiveness by addressing advanced logistics needs, such as reducing time and costs in the transportation process and selecting appropriate global transport modes. This study utilized a generalized cost model to analyze the feasibility of Sea &amp; Air transport through Japan for containerized cargo from East Asia to North America. The findings indicate that (1) the Kaohsiung to New York (NY) route holds the most tremendous potential for Sea &amp; Air transport via Japan, (2) the types of cargo that are most suited for Sea &amp; Air transport, and (3) the policies necessary to facilitate Sea &amp; Air transport at the Port of Kobe. Additionally, Sea &amp; Air transport offers intermodal solutions that reduce environmental impact and enhance energy efficiency by reducing the reliance on air transport.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102737"},"PeriodicalIF":3.9,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168755","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}

{"title":"Crash landing: Flight price elasticity induced by pandemic across America","authors":"Lamiae Taoudi ,&nbsp;Nazanin Tajik ,&nbsp;Alireza Ermagun","doi":"10.1016/j.jairtraman.2024.102732","DOIUrl":"10.1016/j.jairtraman.2024.102732","url":null,"abstract":"<div><div>This study examines the spatial disparity in airfare reductions due to the pandemic for U.S. domestic flights among the top 60 primary airports. It employs a two-step regression analysis to determine the likelihood of airfare reductions and to measure the elasticity of these reductions, as influenced by flight-related, airport-related, and regional attributes. While considerable uncertainty remains regarding the elasticity of flight prices induced by the pandemic, several conclusions can be tentatively drawn. First, at the onset of the pandemic, flight prices did not exhibit significant changes. This initial stability in airfares can be attributed to the industry's initial uncertainty about the pandemic's impact and potentially delayed responses to the rapidly evolving situation. However, as the pandemic progressed, a noticeable impact on airfares became evident. Second, flights of longer duration and higher original prices, as well as airports with high passenger volumes, are more likely to experience reductions in airfares. Third, the economic impact of the pandemic on the aviation industry varies across different regions. Flights departing from the West region show a significant decrease in airfare reductions. The observed disparities in the dynamics of airfare reductions across different U.S. regions highlight the complex interplay of regional characteristics, local pandemic responses, and travel demand in influencing airfare pricing during the pandemic.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102732"},"PeriodicalIF":3.9,"publicationDate":"2024-12-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168754","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}

{"title":"Airport escort manpower supply planning and scheduling","authors":"Shangyao Yan ,&nbsp;Ching-Sheng Sun ,&nbsp;Yu-Ting Hsu","doi":"10.1016/j.jairtraman.2024.102735","DOIUrl":"10.1016/j.jairtraman.2024.102735","url":null,"abstract":"<div><div>Given the growing demand for tourism and an aging population, the need for escort services in airport operations is increasing steadily. Therefore, optimizing the dispatching of escorts to reduce waiting times for passengers with reduced mobility is currently a significant concern. This study utilizes the time-space network technique and mathematical programming to develop a model for escort manpower supply planning and scheduling, aiming to minimize manpower needs. Additionally, the model incorporates service delay and task aborting strategies to better reflect real-world scenarios. To efficiently solve the model, we introduce both a Relax-and-Fix algorithm and a fairness-considerate flow decomposition algorithm. Using data from a Taiwan international airport, we conduct a case study and perform sensitivity/scenario analysis on various parameters. The results highlight the potential of the developed model and algorithms in effectively managing manpower supply planning, escort dispatching, and task assignment in practical situations.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102735"},"PeriodicalIF":3.9,"publicationDate":"2024-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168344","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}

{"title":"Attitudes of airline passengers under uncertainty - A case study of the COVID-19 pandemic in Poland","authors":"Sonia Huderek-Glapska,&nbsp;Doris Antczak","doi":"10.1016/j.jairtraman.2024.102734","DOIUrl":"10.1016/j.jairtraman.2024.102734","url":null,"abstract":"","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102734"},"PeriodicalIF":3.9,"publicationDate":"2024-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168343","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}

{"title":"Package delivery by electric vertical takeoff and landing aircraft? An attractiveness assessment","authors":"Daniel Perez,&nbsp;Bo Zou,&nbsp;Nahid Parvez Farazi","doi":"10.1016/j.jairtraman.2024.102731","DOIUrl":"10.1016/j.jairtraman.2024.102731","url":null,"abstract":"<div><div>Electric vertical takeoff and landing aircraft (eVTOLs) are gaining growing interest recently. However, limited attention has been paid to the prospect of using eVTOLs for package delivery. To fill this void, this paper explores the attractiveness of eVTOL-based package delivery in terms of cost, energy consumption, and CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> emissions. Given that eVTOLs cannot take off/land at customer doorsteps, a two-leg system design is proposed and formulated as an optimization model. To implement the model, we consider multiple plausible eVTOL and ground vehicle types, their cost economics, and energy use and CO<span><math><msub><mrow></mrow><mrow><mn>2</mn></mrow></msub></math></span> emission characteristics. Applying the model in the Chicago metro region, we find that the attractiveness of eVTOL-based package delivery depends critically on the eVTOL and ground vehicle types. With an appropriate eVTOL-ground vehicle combination, eVTOL-based delivery can be attractive compared to van-only delivery in terms of total shipping cost, but not necessarily so from the energy and emission perspectives. This highlights the need for future R&amp;D to further enhance the energy efficiency of eVTOLs. When designing eVTOL-based package delivery systems, the importance to account for the potential interactions between eVTOL traffic and commercial air traffic should also be recognized.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102731"},"PeriodicalIF":3.9,"publicationDate":"2024-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168342","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}

{"title":"Charge-discharge coupling strategy for dispatching problems with electric tractors at airports","authors":"Danwen Bao ,&nbsp;Ziqian Zhang ,&nbsp;Di Kang","doi":"10.1016/j.jairtraman.2024.102733","DOIUrl":"10.1016/j.jairtraman.2024.102733","url":null,"abstract":"<div><div>Airports worldwide are actively promoting the transition of ground service vehicles from traditional fuel-powered vehicles to electric vehicles. The key to the successful implementation of this transition lies in the development of efficient electric vehicle dispatching models that comprehensively consider the charge-discharge processes of electric vehicles. However, due to the nonlinear characteristics of charge-discharge processes, finding precise solutions poses a significant challenge. Previous researchers have often used traditional energy consumption models and constant charging rates to simplify calculations, but this has resulted in inaccurate estimates of the remaining battery charge level. Furthermore, the lack of diverse pacing and charging strategies for airport ground service vehicles necessitates more adaptable solutions to enhance operational efficiency. To address these challenges, this paper uses airport electric tractors as a case study, develops an accurate model that takes into account the start-stop process and a piecewise linear charging function, designs an improved genetic algorithm that incorporates a greedy algorithm and an adaptive strategy, and develops charge-discharge coupling strategies for different configuration scenarios at Nanjing Lukou Airport to meet current and future needs. The research results indicate that compared to traditional genetic algorithms, the proposed improved genetic algorithm significantly enhances solution accuracy and convergence speed. Additionally, with the increase in flight scale, airports can appropriately enhance their charging strategies; airports with dispersed aircraft stands should devise higher pacing strategies compared to those with dense aircraft stands.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102733"},"PeriodicalIF":3.9,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168341","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}

{"title":"Enhanced self-separation decision making for autonomous flight operations in air corridors","authors":"Zhaoxuan Liu ,&nbsp;Maolin Wang ,&nbsp;Zhiyong Liu","doi":"10.1016/j.jairtraman.2024.102721","DOIUrl":"10.1016/j.jairtraman.2024.102721","url":null,"abstract":"<div><div>This paper discusses the emergency self-separation decision-making for autonomous aircraft operating in a high-density air corridor. Air corridors are longish airspace volumes, where multiple self-separated aircraft fly sequentially without instructions from the Air Traffic Controllers (ATCOs). However, due to high traffic volume and limited inter-distance between aircraft, the trailing aircraft becomes more conflict sensitive to environment changes (for instance, a sudden deceleration in the preceding aircraft). Therefore, to realize high traffic throughput while maintaining operation safety, an enhanced multi-attribute decision making (MADM) framework is presented in this paper to address the need for appropriate maneuver determination in a close proximity situation. Specifically, we decompose the MADM scheme into two main steps. In the first step, four candidate maneuver options are generated under different self-separation methodologies. Each candidate option is then evaluated via multiple attributes, which represent various performance objectives of the aircraft. In the second step, the Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) is used to determine the optimal maneuver that realizes an adequate tradeoff among the competing objectives. By simulating aircraft maneuvers in diverse emergency scenarios and with various corridor traffic settings, experimental results have successfully demonstrated the effectiveness of the proposed MADM-based self-separation mechanism.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102721"},"PeriodicalIF":3.9,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168340","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}