Transportation Research Part A-Policy and Practice最新文献

{"title":"Modelling the influence of urban morphology on bikeshare station use: a clustering approach","authors":"Patrick Moore ,&nbsp;Amarachi Amaugo ,&nbsp;Lipika Deka ,&nbsp;Lucy Budd ,&nbsp;Stephen Ison","doi":"10.1016/j.tra.2025.104676","DOIUrl":"10.1016/j.tra.2025.104676","url":null,"abstract":"<div><div>Docked bikeshare schemes have proliferated across UK cities since the first scheme was introduced in 2010. These schemes have been widely adopted for their contributions to decarbonising transport, improving health, and enhancing connectivity through first and last-mile trips. As bikeshare expands to new cities, planners and operators increasingly require a localised understanding of the factors influencing bikeshare use. Urban morphology in UK cities varies widely, however, encompassing differences in street layouts, building design, accessibility, and land use. Meanwhile, industry bikeshare planning guidelines are often broad, without distinguishing between city size and character. These variations pose challenges for bikeshare scheme planning in different settings, emphasising the need for robust, data-driven models that are sensitive to urban context. This paper employs cluster analysis to classify urban areas within several UK cities, with the aim to understand the combined contextual urban factors that influence bikeshare use. This approach, rarely applied in micromobility research, offers a nuanced and unique methodological contribution. The cluster analysis distinguishes between types of residential neighbourhoods, which is a component less commonly incorporated within existing studies. With the data obtained, statistical analysis offers granular insights into the relationship between the built environment and docking station use. It is highlighted that denser residential neighbourhoods with favourable accessibility have consistent associations with trip generation, while accessible suburban neighbourhoods are more varied. The findings have implications for both initial planning and scheme expansion, relevant to station location optimisation, forecasting future demand, fleet size adjustment and integration with existing public transport networks.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"201 ","pages":"Article 104676"},"PeriodicalIF":6.8,"publicationDate":"2025-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Entry and market dynamics: The impact of low-cost carriers in China","authors":"Long Shi ,&nbsp;Qihong Liu ,&nbsp;Dongliang Pang","doi":"10.1016/j.tra.2025.104675","DOIUrl":"10.1016/j.tra.2025.104675","url":null,"abstract":"<div><div>This paper examines the impact of low-cost carriers (LCCs) on the pricing strategies of full-service carriers (FSCs) in the Chinese airline market. We first analyze the effect of LCC presence and find that LCCs exert significant downward pressure on FSC fares, with the magnitude of this impact varying across carriers and routes. Next, we explore the dynamic responses of incumbent FSCs to the entry and the threat of entry by LCCs. Our findings reveal that FSCs begin lowering fares well in advance of LCC entry, with fare reductions of approximately 11 %–18 % occurring as early as the 8th quarter before entry. The fare reductions intensify as the entry date approaches and persist beyond it. On the other hand, FSCs do not seem to respond to LCC entry threats. Our analysis highlights the importance of considering the dynamic pricing responses of FSCs rather than relying solely on LCC presence which is commonly used in the literature studying Chinese LCCs.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"201 ","pages":"Article 104675"},"PeriodicalIF":6.8,"publicationDate":"2025-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145099383","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of sustainable aviation fuel quota mandates on the optimal on-airport fuel facility ownership","authors":"Siyi Xia ,&nbsp;Hengfei Ma ,&nbsp;Rong Hu ,&nbsp;Changmin Jiang ,&nbsp;Yi-bin Xiao","doi":"10.1016/j.tra.2025.104667","DOIUrl":"10.1016/j.tra.2025.104667","url":null,"abstract":"<div><div>Sustainable Aviation Fuel (SAF) is a cornerstone of aviation decarbonization in the short-to-medium term, prompting governments to adopt policies like SAF quota mandates. However, the aviation fuel supply chain—particularly the role of fuel suppliers and the ownership of on-airport fuel facilities—remains understudied. This paper develops a theoretical model to analyze how SAF quota mandates influence the optimal ownership structure of on-airport fuel facilities, comparing three observed arrangements: third-party, airport-owned, and airline-owned. Our findings reveal that airport or airline ownership increases traffic volumes and profits for off-airport suppliers, airports, and airlines compared to third-party ownership. Notably, while third-party ownership maximizes social welfare under low SAF quotas and small market sizes, higher quotas favor airport or airline ownership, suggesting a potential need for ownership transitions as SAF mandates escalate. Furthermore, with intensified airline competition, the choice between airport and airline ownership hinges on market size and the SAF quota level. Extending the analysis to test several real-world constraints reveals crucial sensitivities. For instance, finite SAF production capacity imposes a fundamental trade-off, rendering ambitious mandates incompatible with large-scale aviation activity. Furthermore, a more competitive upstream fuel market raises the market-size threshold at which integration becomes socially optimal. Finally, alternative stakeholder objectives can introduce significant market instability; a welfare-maximizing airport, for example, can create an equilibrium that is vulnerable to exploitation by a profit-maximizing supplier.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"200 ","pages":"Article 104667"},"PeriodicalIF":6.8,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"How can smartphone apps increase electric vehicle user acceptance of supplier managed charging? An investigation of psychosocial constructs using Australian data","authors":"Elham Hajhashemi ,&nbsp;Patricia Sauri Lavieri ,&nbsp;Shanna Trichês Lucchesi ,&nbsp;Ana Margarita Larranaga","doi":"10.1016/j.tra.2025.104662","DOIUrl":"10.1016/j.tra.2025.104662","url":null,"abstract":"<div><div>Electric vehicles are a promising technology to facilitate the decarbonisation of the transport sector. However, their environmental footprint depends on whether charging practices are aligned with renewable generation. Demand-side management strategies, such as supplier managed smart charging (SMSC), have emerged as a key approach to reduce the mismatch between energy generation and consumption patterns while optimising energy utilisation and enhancing grid stability. This paper examines factors influencing consumer intention to adopt SMSC. Additionally, it explores the role of smartphone apps in moderating the risk perception of users regarding supplier management. The study adopts a structural equation modelling framework and uses data from a sample of 994 drivers, including 97 EV owners, in the Australian context. Our findings reveal the interplay between several psychosocial factors, such as environmental responsibility, privacy concerns, and the desire for control, along with perceived relative advantages and risks associated with consumer-product interactions, in shaping consumer intentions toward SMSC adoption. We observe that the presence of an override app makes individuals less sensitive to the perceived risks as well as perceived advantages associated with supplier management. This suggests that the override ability can be a persuasion shortcut to get users onboard with supplier management. Additionally, our results indicate that strategies to tackle privacy concerns, such as transparent data practices, direct benefits for data sharing, and providing users with options to control their data, are essential to encourage SMSC adoption.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"200 ","pages":"Article 104662"},"PeriodicalIF":6.8,"publicationDate":"2025-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145104312","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"More than just miles: range anxiety unplugged","authors":"Katharina Benedetta Baden","doi":"10.1016/j.tra.2025.104661","DOIUrl":"10.1016/j.tra.2025.104661","url":null,"abstract":"<div><div>This integrative literature review delves into range anxiety (the negative response to the limited range ascribed to electric vehicles) to develop a holistic conceptualization and understanding of the phenomenon. Findings from 52 systematically collected papers show that many empirical researchers have adopted a limited understanding of range anxiety as a concern about being stranded while driving an EV. However, range anxiety can exist both dependently (state-based) and independently (trait-based) of specific situations in an electric vehicle alongside its technical, psychological, and rhetorical facets. Building on this more comprehensive understanding, the study derives mitigation strategies—involving different stakeholders and addressing specific driver segments—that entail electric vehicle features, coping resources, experience, knowledge, and collective change opposition. The study proposes a new, more concise definition of range anxiety as a basis for a holistic future research agenda.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"200 ","pages":"Article 104661"},"PeriodicalIF":6.8,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Time prediction of human evacuation from passenger ships based on machine learning methods","authors":"Zhiwei Zhang ,&nbsp;Zhengjiang Liu ,&nbsp;Zirui Zhou ,&nbsp;Xinjian Wang ,&nbsp;Arnab Majumdar ,&nbsp;Yuhao Cao ,&nbsp;Zaili Yang","doi":"10.1016/j.tra.2025.104664","DOIUrl":"10.1016/j.tra.2025.104664","url":null,"abstract":"<div><div>During an emergency evacuation scenario, accurately and timely predicting human evacuation time beforehand is crucial for developing an efficient evacuation plan. This study aims to develop an innovative simulation-based framework in which series state-of-the-art Machine Learning (ML) models are applied to predict human evacuation time from passenger ships. It also develops a multi-dimensional decision-making approach to evaluate their performance from the perspectives of high prediction accuracy and timeliness to support rapid response during emergencies. Firstly, an agent-based modelling technique incorporating two objectives and seven influential factors specific to human evacuation scenarios onboard ships is used to simulate the evacuation process. Then, the evacuation model is validated using three indicators to ensure its accuracy and relevance. Secondly, nine state-of-the-art ML models are applied to predict and analyse human evacuation time. To further investigate the role of feature interactions and enhance predictive accuracy, an additional model called the Attention-enhanced Light Gradient Boosting Machine (Attention-LightGBM) is proposed. Additionally, four statistical indicators are utilised to monitor the performance of each model. Finally, a new weighted selection method based on analytic hierarchy process and entropy weight method is created to conduct a comprehensive assessment from the perspectives of accuracy and timeliness. The findings reveal that the Attention-LightGBM demonstrates significant advantages in prediction accuracy, while the LightGBM excels in prediction timeliness. This study not only provides theoretical and technical support for emergency management onboard ships but also suggests methodological advancements for future research on complex human evacuation scenarios from passenger ships. The source code is publicly available at: <span><span>https://github.com/AdvMarTech/Eva_Predict_ML</span><svg><path></path></svg></span>.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"200 ","pages":"Article 104664"},"PeriodicalIF":6.8,"publicationDate":"2025-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Hitchhiker’s Guide to challenges in transport policy research: Towards ANSWERing questions regarding life, mobility, and everything","authors":"Sebastian Wandelt ,&nbsp;Anming Zhang ,&nbsp;Constantinos Antoniou ,&nbsp;Lucy Budd ,&nbsp;Mercedes Castro-Nuno ,&nbsp;Yida Ding ,&nbsp;Jonas Eliasson ,&nbsp;Stefan Goessling ,&nbsp;Sylvia Y. He ,&nbsp;Stephen Ison ,&nbsp;Changmin Jiang ,&nbsp;Jasmine Siu Lee Lam ,&nbsp;Kevin Li ,&nbsp;Zhiyuan Liu ,&nbsp;Becky P.Y. Loo ,&nbsp;Xiaolei Ma ,&nbsp;Juan de Dios Ortúzar ,&nbsp;Oscar Oviedo-Trespalacios ,&nbsp;Donggen Wang ,&nbsp;Xiaoqian Sun","doi":"10.1016/j.tra.2025.104650","DOIUrl":"10.1016/j.tra.2025.104650","url":null,"abstract":"<div><div>Transport policy research has been developed systematically since the second half of the 20th century, when urban planning and transportation systems became critical components of economic development and urbanization. The field has evolved through a wealth of diverse publications and scholarly contributions. Our comprehensive guide synthesizes the state of the art in 20 major categories of transport policy research, identified based on a data-driven categorization. Each category is represented by a leading expert in the field, providing a rigorous assessment of the state of the art on an area together with an identification of challenges to inform future research and policymaking. Aggregated analysis reveals six major trends in policy research, namely: Adaptability, Network Integration, Sustainability, Wireless Connectivity, Equity, and Resilience — combined to form the word ANSWER, with each component being crucial to understanding and addressing the field’s multifaceted challenges. Our guide aims to provide answers to pressing challenges and serve as an essential, accessible reference regarding transport policy research for academics, policymakers, and industry stakeholders alike.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"200 ","pages":"Article 104650"},"PeriodicalIF":6.8,"publicationDate":"2025-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145048367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The impact of low-altitude airspace opening policy on aviation manufacturing innovation: A double machine learning approach","authors":"Linan Zhao ,&nbsp;Yanru Chen ,&nbsp;M.I.M. Wahab","doi":"10.1016/j.tra.2025.104660","DOIUrl":"10.1016/j.tra.2025.104660","url":null,"abstract":"<div><div>Since 2010, China has been reforming low-altitude airspace management and has implemented the low-altitude airspace opening policy aimed at reducing the restrictions on low-altitude airspace and stimulating the development of the low-altitude economy. To explore the implications of the low-altitude airspace opening policy (LAAOP) and promote innovation development in enterprises, this paper employs double machine learning-based causal inference methods to examine the impact of the policy on aviation manufacturing industry innovation, using data from listed Chinese aviation manufacturing firms between 2003 and 2023. The results indicate that the policy has enhanced the innovation capacity of the sector. The conclusion is robustly validated through both Difference-in-Differences (DiD) and Generalized Random Forest (GRF) models. Heterogeneity analysis reveals that the policy exerts a stronger positive effect on the drone enterprises, state-owned enterprises, and coastal region enterprises. Accordingly, this paper offers a series of policy recommendations to optimize policy implementation and promote high-quality development within China’s aviation manufacturing industry.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"200 ","pages":"Article 104660"},"PeriodicalIF":6.8,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145018651","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ready for road pricing reform? Identifying segments of support in Australia and uncovering (Hidden) attitudes","authors":"Matthew J. Beck,&nbsp;Michiel C.J. Bliemer,&nbsp;James Bushell","doi":"10.1016/j.tra.2025.104646","DOIUrl":"10.1016/j.tra.2025.104646","url":null,"abstract":"<div><div>Despite decades of research and broad consensus in the academic literature regarding its efficiency, road pricing reform remains a controversial topic that many policymakers are loath to debate, and the public strongly resists. Nevertheless, as traditional sources of road funding decline and the costs of maintaining road infrastructure continue to rise, some form of reform will be necessary. Using a mixed-methods approach, this paper revisits the foundations of the debate and presents an in-depth analysis of public attitudes towards the need for road funding reform, specifically examining the acceptability of a simple road user charge (cents per kilometre), independent of specific pricing levels or policy design features. We segment respondents into five distinct clusters based on their underlying support for, or resistance to, reform, and further contextualise these segments by exploring their perceptions of a road user charge. Overall, we identify that the time to discuss reform is now, as there is growing recognition that funding change will be required. We provide recommendations on how to navigate these initial discussions, particularly as our analysis reveals potentially hidden ulterior motivations that may ultimately shape how reform proposals are received and, in turn, their viability.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"200 ","pages":"Article 104646"},"PeriodicalIF":6.8,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144996393","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modelling metro rail ridership at the station- and route-level: an application to analysis of metro ridership in Bengaluru, India","authors":"Nurul Hasan ,&nbsp;Sangram Krishna Nirmale ,&nbsp;L. Deepa ,&nbsp;Abdul Rawoof Pinjari","doi":"10.1016/j.tra.2025.104638","DOIUrl":"10.1016/j.tra.2025.104638","url":null,"abstract":"<div><div>Transit ridership modeling is essential for informing service planning and infrastructure investments in public transport systems. This study develops and applies direct demand models of metro rail ridership, disaggregated by station and travel direction, to capture directional variation in boardings and alightings at the station level. Unlike most prior studies that aggregate station-level ridership regardless of travel direction, the proposed approach enables a richer analysis of ridership at the granularity of station and travel direction as a function of direction-specific accessibility measures and inter-route interactions (competition and complementarity) between metro and bus networks. Separate log-linear regression models are estimated for boarding and alighting, incorporating station-level catchment characteristics, direction-specific accessibility metrics (downstream accessibility for boardings model and upstream accessibility for alightings model), interactions between metro and bus networks, spatial dependencies among closely spaced stations, and station-level random effects. The models are applied to data from 40 metro stations along two corridors of Bengaluru, India. Model estimation results and prediction exercises highlight the significance of accounting for downstream accessibility in boardings model and upstream accessibility in alightings model, along with competition and complementarity between metro and bus networks. Policy simulations suggest that increasing feeder bus services and land-use densification around stations can help enhance metro ridership in the city.</div></div>","PeriodicalId":49421,"journal":{"name":"Transportation Research Part A-Policy and Practice","volume":"200 ","pages":"Article 104638"},"PeriodicalIF":6.8,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144988156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}