Journal of Air Transport Management最新文献

From innovation to adoption: A framework-based evaluation of sustainable adoption strategies for eVTOL vehicles in shared passenger and freight transportation system

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-02-18 DOI: 10.1016/j.jairtraman.2025.102761

Vishal Kashav , Chandra Prakash Garg

Amid ongoing advancements in the transportation sector, the commercial viability of electric Vertical Take-Off and Landing (eVTOL) vehicles is being evaluated for their potential to offer flexible, reliable, rapid, and eco-friendly mobility solutions. While the engineering aspects of eVTOL vehicles have been extensively studied worldwide, the sustainable adoption of this technology has not yet been fully explored. To bridge this gap, the current study first identifies sustainable adoption strategies for eVTOL vehicles in shared passenger and freight transportation arrangements and then evaluates them using the Grey-DEMATEL (Decision-Making Trial and Evaluation Laboratory) method. The methodology uncovers the causal relationships between these strategies and highlights their criticality, allowing for the prioritization of the most essential ones. The key contribution of this study lies in emphasizing top-ranked strategies, particularly the enhancement of customer adoption, which is often overlooked in the existing literature. Most published studies focus primarily on the technical aspects of this innovation, neglecting the crucial importance of prioritizing customer acceptance for sustainable adoption. Additionally, we identified that government support, financial incentives such as subsidies, and a strong understanding of the technology are critical focus areas for accelerating adoption. This study makes a significant contribution by being one of the first attempts to create a Grey-DEMATEL-based framework for evaluating sustainable adoption strategies in the context of eVTOL vehicles’ deployment in shared passenger and freight transportation arrangements. Lastly, a sensitivity analysis is conducted to ensure the robustness of the method; consequently, the entire framework is found to be robust.

{"title":"From innovation to adoption: A framework-based evaluation of sustainable adoption strategies for eVTOL vehicles in shared passenger and freight transportation system","authors":"Vishal Kashav , Chandra Prakash Garg","doi":"10.1016/j.jairtraman.2025.102761","DOIUrl":"10.1016/j.jairtraman.2025.102761","url":null,"abstract":"<div><div>Amid ongoing advancements in the transportation sector, the commercial viability of electric Vertical Take-Off and Landing (eVTOL) vehicles is being evaluated for their potential to offer flexible, reliable, rapid, and eco-friendly mobility solutions. While the engineering aspects of eVTOL vehicles have been extensively studied worldwide, the sustainable adoption of this technology has not yet been fully explored. To bridge this gap, the current study first identifies sustainable adoption strategies for eVTOL vehicles in shared passenger and freight transportation arrangements and then evaluates them using the Grey-DEMATEL (Decision-Making Trial and Evaluation Laboratory) method. The methodology uncovers the causal relationships between these strategies and highlights their criticality, allowing for the prioritization of the most essential ones. The key contribution of this study lies in emphasizing top-ranked strategies, particularly the enhancement of customer adoption, which is often overlooked in the existing literature. Most published studies focus primarily on the technical aspects of this innovation, neglecting the crucial importance of prioritizing customer acceptance for sustainable adoption. Additionally, we identified that government support, financial incentives such as subsidies, and a strong understanding of the technology are critical focus areas for accelerating adoption. This study makes a significant contribution by being one of the first attempts to create a Grey-DEMATEL-based framework for evaluating sustainable adoption strategies in the context of eVTOL vehicles’ deployment in shared passenger and freight transportation arrangements. Lastly, a sensitivity analysis is conducted to ensure the robustness of the method; consequently, the entire framework is found to be robust.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102761"},"PeriodicalIF":3.9,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143428025","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

Electric vertical takeoff and landing and consumer intention: An empirical test under a theoretical framework

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-02-17 DOI: 10.1016/j.jairtraman.2025.102759

Wenjuan Liu , Yanfeng Liu

EVTOL offers a rapid and environmentally friendly mode of urban air mobility, however, realizing this innovative solution hinges on consumer intention to ride eVTOLs. Therefore, it is essential to investigate consumers' intention to ride eVTOLs and the factors influencing it. This study seeks to empirically analyze the core elements of the extended TPB through surveys and SEM, explore consumers' intention to ride eVTOLs and their potential influencing factors, and provide suggestions for the application and promotion of eVTOL according to the findings of the research. The results indicate that face consciousness and susceptibility to acrophobia have significant indirect effects on the intention to ride, while perceived risk positively directly affects the intention. The most influential factor affecting consumers' intention is perceived behavioral control. Attitudes towards riding eVTOLs and subjective norms significantly and positively influence consumer riding decisions. Finally, this study provides decision support for stakeholders in formulating relevant policies and marketing strategies to facilitate the application and promotion of eVTOL.

{"title":"Electric vertical takeoff and landing and consumer intention: An empirical test under a theoretical framework","authors":"Wenjuan Liu , Yanfeng Liu","doi":"10.1016/j.jairtraman.2025.102759","DOIUrl":"10.1016/j.jairtraman.2025.102759","url":null,"abstract":"<div><div>EVTOL offers a rapid and environmentally friendly mode of urban air mobility, however, realizing this innovative solution hinges on consumer intention to ride eVTOLs. Therefore, it is essential to investigate consumers' intention to ride eVTOLs and the factors influencing it. This study seeks to empirically analyze the core elements of the extended TPB through surveys and SEM, explore consumers' intention to ride eVTOLs and their potential influencing factors, and provide suggestions for the application and promotion of eVTOL according to the findings of the research. The results indicate that face consciousness and susceptibility to acrophobia have significant indirect effects on the intention to ride, while perceived risk positively directly affects the intention. The most influential factor affecting consumers' intention is perceived behavioral control. Attitudes towards riding eVTOLs and subjective norms significantly and positively influence consumer riding decisions. Finally, this study provides decision support for stakeholders in formulating relevant policies and marketing strategies to facilitate the application and promotion of eVTOL.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102759"},"PeriodicalIF":3.9,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421621","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

Tail assignment problem with hour-to-cycle ratio constraints

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-02-17 DOI: 10.1016/j.jairtraman.2025.102756

Çiya Aydoğan , Sinan Gürel

Effective management of hour-to-cycle performance is crucial for any aircraft operating under an operating lease contract. This protects an airline from incurring supplemental rental payments that arise from leasing contract terms. One way of managing accumulated flight hours and flight cycles on aircraft is integrating related performance measures in the tail assignment decisions. This study introduces the tail assignment problem (TAP) considering aircraft’s hour-to-cycle ratio performance. We introduce a novel TAP formulation explicitly incorporating aircraft hour-to-cycle ratio constraints, which are typically overlooked in traditional models. Our numerical analysis demonstrates that overlooking the hour-to-cycle performance of aircraft in tail assignment decisions can result in drastic deviations from target ratios. Therefore, we propose a mathematical model that includes penalty costs for violating the aircraft’s target hour-to-cycle ratios. We propose one McCormick linearization and one second-order conic reformulation for the nonlinear constraints in the model. We perform computational analyses by generating problem instances derived from an actual flight schedule. Computational results show that within a given time limit the model with McCormick linearization solves more instances to optimum than the model with conic reformulation. Also, it achieves an average optimality gap of 1.62% while the average gap is 6.39% for the solutions obtained with the conic formulation.

{"title":"Tail assignment problem with hour-to-cycle ratio constraints","authors":"Çiya Aydoğan , Sinan Gürel","doi":"10.1016/j.jairtraman.2025.102756","DOIUrl":"10.1016/j.jairtraman.2025.102756","url":null,"abstract":"<div><div>Effective management of hour-to-cycle performance is crucial for any aircraft operating under an operating lease contract. This protects an airline from incurring supplemental rental payments that arise from leasing contract terms. One way of managing accumulated flight hours and flight cycles on aircraft is integrating related performance measures in the tail assignment decisions. This study introduces the tail assignment problem (TAP) considering aircraft’s hour-to-cycle ratio performance. We introduce a novel TAP formulation explicitly incorporating aircraft hour-to-cycle ratio constraints, which are typically overlooked in traditional models. Our numerical analysis demonstrates that overlooking the hour-to-cycle performance of aircraft in tail assignment decisions can result in drastic deviations from target ratios. Therefore, we propose a mathematical model that includes penalty costs for violating the aircraft’s target hour-to-cycle ratios. We propose one McCormick linearization and one second-order conic reformulation for the nonlinear constraints in the model. We perform computational analyses by generating problem instances derived from an actual flight schedule. Computational results show that within a given time limit the model with McCormick linearization solves more instances to optimum than the model with conic reformulation. Also, it achieves an average optimality gap of 1.62% while the average gap is 6.39% for the solutions obtained with the conic formulation.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102756"},"PeriodicalIF":3.9,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421622","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

Are we ready for the unexpected disruption? Job embeddedness, calling, and turnover intentions

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-02-16 DOI: 10.1016/j.jairtraman.2025.102762

Yu-Yu Chang , Yueh-Duo Chen

Drawing on Event System Theory, this paper examines how organizational responsiveness to the pandemic, COVID-19 disruption, and job embeddedness influence airline personnel's turnover intention and investigates the moderating role of career calling. Through a longitudinal survey, we collected 372 observations from 186 full-time aviation employees in Taiwan, including cabin crew and ground staff. During the three-week interval, COVID-19 cases in Taiwan sharply increased for the first time, evolving from localized transmission (1390 daily confirmed cases) to the peak of a nationwide pandemic (35,205 daily confirmed cases). Results show that organizational responsiveness and COVID-19 disruption affect turnover intention through the mediating effect of job embeddedness. Moreover, we found that the negative indirect effects of organizational responsiveness and COVID-19 disruption on turnover intention are amplified when aviation personnel's career calling is high. By leveraging data from the pandemic's natural progression, this paper empirically contributes to the existing discourse on Event System Theory and offers practical implications for managing human resource loss during profound and unexpected events.

{"title":"Are we ready for the unexpected disruption? Job embeddedness, calling, and turnover intentions","authors":"Yu-Yu Chang , Yueh-Duo Chen","doi":"10.1016/j.jairtraman.2025.102762","DOIUrl":"10.1016/j.jairtraman.2025.102762","url":null,"abstract":"<div><div>Drawing on Event System Theory, this paper examines how organizational responsiveness to the pandemic, COVID-19 disruption, and job embeddedness influence airline personnel's turnover intention and investigates the moderating role of career calling. Through a longitudinal survey, we collected 372 observations from 186 full-time aviation employees in Taiwan, including cabin crew and ground staff. During the three-week interval, COVID-19 cases in Taiwan sharply increased for the first time, evolving from localized transmission (1390 daily confirmed cases) to the peak of a nationwide pandemic (35,205 daily confirmed cases). Results show that organizational responsiveness and COVID-19 disruption affect turnover intention through the mediating effect of job embeddedness. Moreover, we found that the negative indirect effects of organizational responsiveness and COVID-19 disruption on turnover intention are amplified when aviation personnel's career calling is high. By leveraging data from the pandemic's natural progression, this paper empirically contributes to the existing discourse on Event System Theory and offers practical implications for managing human resource loss during profound and unexpected events.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102762"},"PeriodicalIF":3.9,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143421570","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

An aircraft and schedule integrated approach to crew scheduling for a point-to-point airline

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-02-14 DOI: 10.1016/j.jairtraman.2025.102755

Johanna P. Korte, Neil Yorke-Smith

Crew costs make up the second largest expense for airlines, behind only fuel costs. This motivates a potential gain in improving crew efficiency within the bounds set by the law and collective labour agreements. Doing so requires to take into account aircraft routes and crew pairings, and the specifics of the airline’s network. This work presents an integrated model for obtaining efficient crew pairings for airlines operating point-to-point networks, while also allowing for flight retiming. By considering simultaneously both crew pairing and constrained aircraft routing, better-performing solutions can be obtained. The greater complexity of the integrated model is addressed by means of a custom branch-and-price approach with a shortest path pricing sub-problem, in order to obtain exact solutions. The results of the integrated model are evaluated on a real-world case of an European low-cost carrier that operates a short-haul point-to-point network. Results show a reduction in crew duties of 10% and an increase in crew efficiency metrics by up to 1.5%, optimising the carrier’s complete network of 926 flights over a full week.

{"title":"An aircraft and schedule integrated approach to crew scheduling for a point-to-point airline","authors":"Johanna P. Korte, Neil Yorke-Smith","doi":"10.1016/j.jairtraman.2025.102755","DOIUrl":"10.1016/j.jairtraman.2025.102755","url":null,"abstract":"<div><div>Crew costs make up the second largest expense for airlines, behind only fuel costs. This motivates a potential gain in improving crew efficiency within the bounds set by the law and collective labour agreements. Doing so requires to take into account aircraft routes and crew pairings, and the specifics of the airline’s network. This work presents an integrated model for obtaining efficient crew pairings for airlines operating point-to-point networks, while also allowing for flight retiming. By considering simultaneously both crew pairing and constrained aircraft routing, better-performing solutions can be obtained. The greater complexity of the integrated model is addressed by means of a custom branch-and-price approach with a shortest path pricing sub-problem, in order to obtain exact solutions. The results of the integrated model are evaluated on a real-world case of an European low-cost carrier that operates a short-haul point-to-point network. Results show a reduction in crew duties of 10% and an increase in crew efficiency metrics by up to 1.5%, optimising the carrier’s complete network of 926 flights over a full week.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102755"},"PeriodicalIF":3.9,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403676","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

Symbiotic evolution mechanism of urban air mobility industrial innovation ecosystem: Evidence from low altitude air mobility in Shenzhen

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-02-13 DOI: 10.1016/j.jairtraman.2025.102750

Xinhui Ren, Jiarui Wang

The symbiotic evolution of subjects within the urban air mobility industrial innovation ecosystem is crucial for fostering coordinated development among stakeholders. It serves as a key foundation for achieving mutual benefits and driving high-quality growth in the low-altitude economy. Based on the conceptual model of the urban air mobility industrial innovation ecosystem, the Lokta-Volterra symbiotic evolution model is introduced. Different symbiotic evolution patterns within the system are simulated. Taking the innovation ecosystem of the low-altitude air mobility industry in Shenzhen as an example, the grey estimation method is used to measure the coefficient of symbiosis. This method helps identify the symbiotic relationship of the subjects within the system and analyze the mechanism of symbiotic evolution of the subjects within the innovation ecosystem of the urban air mobility industry under different evolutionary stages. The results show that: (1) The symbiotic relationship between the symbiotic subjects is determined by the symbiotic coefficient. (2) The symbiotic relationships among system subjects vary at different stages. When the symbiotic coefficients are all greater than zero, the subjects reach a reciprocal symbiotic relationship. (3) The innovation ecosystem of the low-altitude air traffic industry in Shenzhen is in the transition stage from growth to higher-order growth evolution. The subject has experienced the evolution process of dual-subject competitive symbiosis, single-subject biased symbiosis, and dual-subject competitive symbiosis. This study provides reference suggestions for the future symbiotic and synergistic development of the urban air mobility industry in the context of the low-altitude economy in other cities from the aspects of industrial balance, subject synergy and scenario innovation.

{"title":"Symbiotic evolution mechanism of urban air mobility industrial innovation ecosystem: Evidence from low altitude air mobility in Shenzhen","authors":"Xinhui Ren, Jiarui Wang","doi":"10.1016/j.jairtraman.2025.102750","DOIUrl":"10.1016/j.jairtraman.2025.102750","url":null,"abstract":"<div><div>The symbiotic evolution of subjects within the urban air mobility industrial innovation ecosystem is crucial for fostering coordinated development among stakeholders. It serves as a key foundation for achieving mutual benefits and driving high-quality growth in the low-altitude economy. Based on the conceptual model of the urban air mobility industrial innovation ecosystem, the Lokta-Volterra symbiotic evolution model is introduced. Different symbiotic evolution patterns within the system are simulated. Taking the innovation ecosystem of the low-altitude air mobility industry in Shenzhen as an example, the grey estimation method is used to measure the coefficient of symbiosis. This method helps identify the symbiotic relationship of the subjects within the system and analyze the mechanism of symbiotic evolution of the subjects within the innovation ecosystem of the urban air mobility industry under different evolutionary stages. The results show that: (1) The symbiotic relationship between the symbiotic subjects is determined by the symbiotic coefficient. (2) The symbiotic relationships among system subjects vary at different stages. When the symbiotic coefficients are all greater than zero, the subjects reach a reciprocal symbiotic relationship. (3) The innovation ecosystem of the low-altitude air traffic industry in Shenzhen is in the transition stage from growth to higher-order growth evolution. The subject has experienced the evolution process of dual-subject competitive symbiosis, single-subject biased symbiosis, and dual-subject competitive symbiosis. This study provides reference suggestions for the future symbiotic and synergistic development of the urban air mobility industry in the context of the low-altitude economy in other cities from the aspects of industrial balance, subject synergy and scenario innovation.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102750"},"PeriodicalIF":3.9,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403675","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

Unlocking efficiency and environmental impact: Analyzing concessioned Brazilian airports

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-02-06 DOI: 10.1016/j.jairtraman.2025.102754

Maria Cecília de Farias Domingos , Rogéria de Arantes Gomes , Hélio da Silva Queiroz Júnior , Viviane Adriano Falcão

This study explores airport efficiency concerning environmental performance, considering both positive and negative impacts of operations, particularly related to air pollution. While operational efficiency is commonly assessed, this research uniquely evaluates efficiency gains during concession periods and their environmental ramifications. The research aims to redefine the efficiency analysis paradigm by integrating variables that either benefit or harm the system. It uses Data Envelopment Analysis (DEA) and Principal Component Analysis (PCA) to evaluate airport performance, assessing environmental efficiency through Window Analysis annually from 2015 to 2023. The airports in the sample are categorized into groups based on the volume of passengers in which inefficient ones and the benchmarks are identified. The results highlight heterogeneous environmental efficiencies among airports, with notable variations during the pandemic. Regional airports demonstrate efficiency gains, indicating that decentralizing domestic operations and using more efficient aircraft can reduce pollutant emissions. Additionally, the benchmark analysis identifies high-traffic airports as more likely to emit pollutants. Strategically planning competition among nearby concessioned airports is crucial for sustainable efficiency. This study underscores the intricate environmental and operational dynamics in the airport sector, advocating for a holistic approach to sustainable efficiency. The findings offer valuable insights for regulators, airport operators, and policymakers, suggesting pathways for continuous improvement in Brazilian airports' environmental efficiency.

{"title":"Unlocking efficiency and environmental impact: Analyzing concessioned Brazilian airports","authors":"Maria Cecília de Farias Domingos , Rogéria de Arantes Gomes , Hélio da Silva Queiroz Júnior , Viviane Adriano Falcão","doi":"10.1016/j.jairtraman.2025.102754","DOIUrl":"10.1016/j.jairtraman.2025.102754","url":null,"abstract":"<div><div>This study explores airport efficiency concerning environmental performance, considering both positive and negative impacts of operations, particularly related to air pollution. While operational efficiency is commonly assessed, this research uniquely evaluates efficiency gains during concession periods and their environmental ramifications. The research aims to redefine the efficiency analysis paradigm by integrating variables that either benefit or harm the system. It uses Data Envelopment Analysis (DEA) and Principal Component Analysis (PCA) to evaluate airport performance, assessing environmental efficiency through Window Analysis annually from 2015 to 2023. The airports in the sample are categorized into groups based on the volume of passengers in which inefficient ones and the benchmarks are identified. The results highlight heterogeneous environmental efficiencies among airports, with notable variations during the pandemic. Regional airports demonstrate efficiency gains, indicating that decentralizing domestic operations and using more efficient aircraft can reduce pollutant emissions. Additionally, the benchmark analysis identifies high-traffic airports as more likely to emit pollutants. Strategically planning competition among nearby concessioned airports is crucial for sustainable efficiency. This study underscores the intricate environmental and operational dynamics in the airport sector, advocating for a holistic approach to sustainable efficiency. The findings offer valuable insights for regulators, airport operators, and policymakers, suggesting pathways for continuous improvement in Brazilian airports' environmental efficiency.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102754"},"PeriodicalIF":3.9,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143226027","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

A dynamic control method for airport ground movement optimization considering adaptive traffic situation and data-driven conflict priority

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-02-01 DOI: 10.1016/j.jairtraman.2025.102753

Jie Bao, Jiawei Kang, Junfeng Zhang, Zijie Zhang, Jiaqi Han

The primary objective of this study is to address the taxiing uncertainty in airport ground movement optimization with a novel dynamic control method considering adaptive traffic situation and data-driven conflict priority. To better characterize the airport surface traffic situation, a refined link-level unimpeded taxi time (UTT) estimation method is designed to improve the UTT prediction accuracy, and a comprehensive airport operation evaluation method is developed to identify similar surface traffic situation scenarios. Then, a data-driven method is proposed to discover contributing factors to conflict priority assignment and obtain more realistic conflict resolution behaviors. Finally, the adaptive traffic situation and updated conflict priority approach are embedded into the proposed dynamic airport ground movement optimization framework. One month aircraft trajectory data is collected from a representative mega airport in China to illustrate the procedure. The results reveal that the dynamic control method could achieve better performance of airport ground movement than sequential approach through timely path-adjustment and effective collaboration with other aircraft. Moreover, the adaptive traffic situation approach could achieve better trade-off between computation efficiency and optimal solution, and the updated conflict priority approach tends to coordinate the taxiing aircraft to the route plan with lower additional taxi time and achieves a more balanced utilization of taxiway network. The study provides a promising approach to generate real-time conflict-free trajectories for airport operation in future surface trajectory-based operations (TBO) scenarios.

{"title":"A dynamic control method for airport ground movement optimization considering adaptive traffic situation and data-driven conflict priority","authors":"Jie Bao, Jiawei Kang, Junfeng Zhang, Zijie Zhang, Jiaqi Han","doi":"10.1016/j.jairtraman.2025.102753","DOIUrl":"10.1016/j.jairtraman.2025.102753","url":null,"abstract":"<div><div>The primary objective of this study is to address the taxiing uncertainty in airport ground movement optimization with a novel dynamic control method considering adaptive traffic situation and data-driven conflict priority. To better characterize the airport surface traffic situation, a refined link-level unimpeded taxi time (UTT) estimation method is designed to improve the UTT prediction accuracy, and a comprehensive airport operation evaluation method is developed to identify similar surface traffic situation scenarios. Then, a data-driven method is proposed to discover contributing factors to conflict priority assignment and obtain more realistic conflict resolution behaviors. Finally, the adaptive traffic situation and updated conflict priority approach are embedded into the proposed dynamic airport ground movement optimization framework. One month aircraft trajectory data is collected from a representative mega airport in China to illustrate the procedure. The results reveal that the dynamic control method could achieve better performance of airport ground movement than sequential approach through timely path-adjustment and effective collaboration with other aircraft. Moreover, the adaptive traffic situation approach could achieve better trade-off between computation efficiency and optimal solution, and the updated conflict priority approach tends to coordinate the taxiing aircraft to the route plan with lower additional taxi time and achieves a more balanced utilization of taxiway network. The study provides a promising approach to generate real-time conflict-free trajectories for airport operation in future surface trajectory-based operations (TBO) scenarios.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102753"},"PeriodicalIF":3.9,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168345","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

A novel slot optimization model for congested airports integrating IATA priority and operational priority

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-01-29 DOI: 10.1016/j.jairtraman.2025.102751

Weili Zeng , Changxing Xu , Xiang Shu , Xinyuan Chen , Wenbin Wei

The Worldwide Slot Guidelines (WSG) are currently widely adopted for airport slot demand management. In some busy airports, coordinators are responsible for allocating slots according to the priority order outlined by the WSG. Particularly, historical slots with the highest priority should be directly allocated to the airline carrier holding that slot in the following same season. However, when airport capacity decreases, there may be situations where historical priority slots cannot be met, rendering the existing allocation guidelines ineffective. Currently, no research considers this situation. To complement the existing coordination priority, this paper first defines a new priority category from an operational perspective, referred to as operational priority. Furthermore, a weighted dual-objective slot optimization model is constructed, integrating both coordination priority and operational priority within the same optimization model framework. A constraint-based hierarchical search strategy is adopted to find the optimal results for different priority slots. Applying the model to Shanghai Pudong International Airport (ZSPD) in China, experimental results show that the proposed model can effectively meet the requests of airlines, with a slot adjustment amount of only 3.15% and a maximum displacement of fewer than 40 min. Since the proposed model considers operational priority, the optimized results regarding temporal and spatial distribution are more reasonable, effectively reducing flight delays and improving operational efficiency.

{"title":"A novel slot optimization model for congested airports integrating IATA priority and operational priority","authors":"Weili Zeng , Changxing Xu , Xiang Shu , Xinyuan Chen , Wenbin Wei","doi":"10.1016/j.jairtraman.2025.102751","DOIUrl":"10.1016/j.jairtraman.2025.102751","url":null,"abstract":"<div><div>The Worldwide Slot Guidelines (WSG) are currently widely adopted for airport slot demand management. In some busy airports, coordinators are responsible for allocating slots according to the priority order outlined by the WSG. Particularly, historical slots with the highest priority should be directly allocated to the airline carrier holding that slot in the following same season. However, when airport capacity decreases, there may be situations where historical priority slots cannot be met, rendering the existing allocation guidelines ineffective. Currently, no research considers this situation. To complement the existing coordination priority, this paper first defines a new priority category from an operational perspective, referred to as operational priority. Furthermore, a weighted dual-objective slot optimization model is constructed, integrating both coordination priority and operational priority within the same optimization model framework. A constraint-based hierarchical search strategy is adopted to find the optimal results for different priority slots. Applying the model to Shanghai Pudong International Airport (ZSPD) in China, experimental results show that the proposed model can effectively meet the requests of airlines, with a slot adjustment amount of only 3.15% and a maximum displacement of fewer than 40 min. Since the proposed model considers operational priority, the optimized results regarding temporal and spatial distribution are more reasonable, effectively reducing flight delays and improving operational efficiency.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102751"},"PeriodicalIF":3.9,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168347","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

A new tool for robust aircraft routing: Superior Robust Aircraft Routing (sup-RAR)

IF 3.9 2区工程技术 Q2 TRANSPORTATION

Journal of Air Transport Management

Pub Date : 2025-01-27 DOI: 10.1016/j.jairtraman.2025.102744

Aykan Akıncılar , Ertan Güner

Coping with uncertainty is one of the major challenges in airline operations planning. Due to its disruptive effect, researchers elaborate to build robust plans. However, it is still not clear “How to indicate a plan robust?” and “How to measure the robustness of a plan?” In order to fill these crucial gaps for robust aircraft routing sub-problem, a novel tool, which is named sup-robust aircraft routing (sup-RAR), is introduced in this study. Contribution of this new methodology is 4-dimensional: i. Producing tractable aircraft routing plans that are completely invulnerable to pre-defined uncertainties (absolutely robust AR plans); ii. Reflecting uncertainty in delay via 3 novel point of views; iii. The very first attempt in the robust airline operations planning literature to develop an evaluation framework capable of assessing even absolutely robust plans, which brings with more reliable AR plans; iv. Leading more flexible and cost-efficient decisions by enabling renting option contrary to classical robust aircraft routing models. Following the introduction, necessity for such a tool is emphasized by indicating incapabilities of previous works. Then, the proposed sup-RAR methodology is introduced. To test validity and applicability of the sup-RAR methodology, a case study comprising of real dataset is conducted. In light of the results, astonishing insights are obtained.

{"title":"A new tool for robust aircraft routing: Superior Robust Aircraft Routing (sup-RAR)","authors":"Aykan Akıncılar , Ertan Güner","doi":"10.1016/j.jairtraman.2025.102744","DOIUrl":"10.1016/j.jairtraman.2025.102744","url":null,"abstract":"<div><div>Coping with uncertainty is one of the major challenges in airline operations planning. Due to its disruptive effect, researchers elaborate to build robust plans. However, it is still not clear “How to indicate a plan robust?” and “How to measure the robustness of a plan?” In order to fill these crucial gaps for robust aircraft routing sub-problem, a novel tool, which is named <strong>sup-robust aircraft routing (sup-RAR)</strong>, is introduced in this study. Contribution of this new methodology is 4-dimensional: <em>i</em>. Producing tractable aircraft routing plans that are completely invulnerable to pre-defined uncertainties (absolutely robust AR plans); <em>ii</em>. Reflecting uncertainty in delay via 3 novel point of views; <em>iii</em>. The very first attempt in the robust airline operations planning literature to develop an evaluation framework capable of assessing even absolutely robust plans, which brings with more reliable AR plans; <em>iv</em>. Leading more flexible and cost-efficient decisions by enabling renting option contrary to classical robust aircraft routing models. Following the introduction, necessity for such a tool is emphasized by indicating incapabilities of previous works. Then, the proposed sup-RAR methodology is introduced. To test validity and applicability of the sup-RAR methodology, a case study comprising of real dataset is conducted. In light of the results, astonishing insights are obtained.</div></div>","PeriodicalId":14925,"journal":{"name":"Journal of Air Transport Management","volume":"124 ","pages":"Article 102744"},"PeriodicalIF":3.9,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143168346","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