Case Studies on Transport Policy最新文献

{"title":"Is exclusive motorcycle lane an effective strategy to enhance the operational and safety performance of rural highways?","authors":"Harish Kumar Saini,&nbsp;Ankit Kathuria","doi":"10.1016/j.cstp.2025.101541","DOIUrl":"10.1016/j.cstp.2025.101541","url":null,"abstract":"<div><div>Previous research has highlighted that segregating motorcyclists from the main traffic stream by providing dedicated lanes reduces the likelihood of crashes. The study evaluates the operational and safety performance of an exclusive motorcycle lane (EMCL) using link performance functions and traffic conflict techniques. However, EMCLs are not currently operational in India; thus, temporary implementations of EMCLs were conducted on rural highways to collect field data. A simulation model was developed, calibrated, and validated for EMCLs, mixed vehicle lanes, and scenarios without EMCLs to augment the data. Link performance functions were developed and optimised to determine the optimum volume-capacity (V-C) ratio. From the study, lower optimum V-C ratios were observed on roads with EMCLs (0.588 and 0.598) compared to those without EMCLs (0.852 and 0.698), indicating an increase in the level of service. Additionally, a safety analysis of EMCLs was carried out to assess conflict severity using surrogate safety measures (SSMs). The interactions between different vehicles were investigated and categorised into critical, mild, and safe based on SSM. The results indicate that implementing EMCLs improves the safety of motorcyclists and other road users by reducing critical interactions by 42%. Overall, the research showed that the motorcycle segregation strategy enhances rural highways’ operational and safety performance. The key findings of this study will provide valuable insights for transport planners, researchers, policymakers, and government agencies.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101541"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144556780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Consumer insights on EV policy towards accelerated adoption – Canberra case study","authors":"Yuan Peng ,&nbsp;Reza Fazeli ,&nbsp;Wentao Ye ,&nbsp;Xuemei Bai","doi":"10.1016/j.cstp.2025.101540","DOIUrl":"10.1016/j.cstp.2025.101540","url":null,"abstract":"<div><div>This study explores consumer perspectives on electric vehicle (EV) adoption in Canberra, Australia—a city in the early stages of EV promotion. Drawing on 524 valid survey responses and a mixed-methods approach, we examine key barriers, policy needs, and the influence of consumer knowledge on adoption intent. Results indicate that EV knowledge and prior driving experience significantly enhance purchase interest. While respondents exhibit relatively strong awareness of environmental benefits and local incentives, they are less informed about operational cost savings and lifecycle emissions. A supplementary dealer survey reveals a supply-side information lag, highlighting the need for improved communication channels between policymakers, dealers, and consumers. Consumers’ primary concerns relate to EV performance and cost-effectiveness, suggesting that recent technological progress has not yet translated into widespread consumer confidence. Qualitative responses further reveal diverse policy expectations spanning social, technical, and economic domains. The findings emphasize the necessity of a comprehensive local policy framework to facilitate EV uptake in emerging markets. Such a framework should address evolving challenges, including battery recycling, integration with home energy systems, and the development of supporting services. While local governments have limited influence over vehicle pricing and national technological standards, they can play a critical role in closing information gaps through targeted educational programs and alleviating infrastructure-related barriers. This research contributes to the understanding of localized EV policy design and provides insights for other cities seeking to initiate or strengthen their EV transition strategies.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101540"},"PeriodicalIF":2.4,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144572699","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"What drives passengers towards sustainable aviation? A segmentation study of travel behaviour and environmental concern in Spain","authors":"Helena Patino-Artaza ,&nbsp;Pere Suau-Sanchez","doi":"10.1016/j.cstp.2025.101539","DOIUrl":"10.1016/j.cstp.2025.101539","url":null,"abstract":"<div><div>Air travel significantly contributes to greenhouse gas emissions, posing challenges for climate action. This study examines the attitudes and behaviours of Spanish air passengers, focusing on the relationship between environmental concerns and travel choices. Based on a survey of 1,206 participants, we employed exploratory factor analysis to identify three attitudinal clusters: “Status quo flyers,” “Environmentally conscious low-flyers,” and “Pragmatic moderates”. These segments display significant differences in travel frequency, environmental concern, perception of aviation’s impact, and willingness to adopt sustainable alternatives. While environmentally conscious travellers express willingness to reduce air travel, frequent flyers often resist behavioural changes, highlighting a persistent attitude-behaviour gap. The results emphasise the importance of targeted strategies to address the attitude-behaviour gap and promote sustainability in aviation. This research provides actionable insights for policymakers and industry stakeholders to foster sustainable travel behaviours in one of Europe’s largest aviation markets.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101539"},"PeriodicalIF":2.4,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548704","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluating the economic feasibility of short sea shipping in Southern Africa: A case study of regional freight transports","authors":"P.M. Batista Santos,&nbsp;T.A. Santos","doi":"10.1016/j.cstp.2025.101538","DOIUrl":"10.1016/j.cstp.2025.101538","url":null,"abstract":"<div><div>The adoption of Short Sea Shipping (SSS) has been proposed as a possible means of improving regional freight transport in southern Africa. This paper is focused on the implementation of a methodology for the planning of regular liner routes between a set of ports while considering the distribution of cargo throughout this region using the road network. This research applies a numerical tool for the economic assessment of SSS based transport chains, building upon a model of the existing transport network, that comprises roads, ports and maritime routes. A case study is carried out that considers different options for a SSS route connecting ports in southern Africa. This case study includes also two different logistics scenarios (related to the logistic performance of ports and border crossings), in order to fully understand the feasibility of a SSS operation in the region. Conclusions are clear that, for the current logistics reality in the region, the implementation of a SSS route would be an advisable investment. In a scenario with improved logistics performance, a SSS service would remain feasible and even more profitable, as a consequence of high freight rates and in spite of high port costs and inefficiencies.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101538"},"PeriodicalIF":2.4,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144523243","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"X-efficiency of toll road companies: The case of China","authors":"Yingjie Zheng ,&nbsp;Haicheng Xu ,&nbsp;Yanling Li ,&nbsp;Sheng Cao ,&nbsp;Yijin Song","doi":"10.1016/j.cstp.2025.101537","DOIUrl":"10.1016/j.cstp.2025.101537","url":null,"abstract":"<div><div>Accurate identification of efficiency losses in toll road companies is important for optimizing their operational management. This paper measures the X-inefficiency of state-owned toll road companies (STRCs) using a stochastic frontier analysis model, with external influencing factors analyzed via principal component analysis. The evolutionary characteristics of X-inefficiency of STRCs are further summarized using kernel density analysis. The panel data of 26 STRCs in China from 2013 to 2019 is used. The study shows that the mean value of X-inefficiency of STRCs is 0.453. Regional analyses show that the Chinese STRCs with higher X-efficiency losses are mainly located in the western and southeastern coastal regions, while the X-inefficiency of STRCs in the central region is lower. Evolutionary analyses show that the X-efficiency of STRCs tends to decline over the period and the difference in the efficiency level of STRCs between regions exhibits a widening trend. The findings of this paper expand the research outreach of the X-efficiency theory, which is of practical significance in helping Chinese STRCs to achieve sustainable development.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101537"},"PeriodicalIF":2.4,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Management and prediction of traffic crashes on residential streets in Iraq using the expert system (MPTCRSI-ES)","authors":"Ali Ahmed Mohammed ,&nbsp;Kamarudin Ambak ,&nbsp;Hussin A.M. Yahia ,&nbsp;Ihab M. Abdulhadi ,&nbsp;Hameed A. Mohammed ,&nbsp;Yousif Al Mashhadany ,&nbsp;Hisham Jashami","doi":"10.1016/j.cstp.2025.101530","DOIUrl":"10.1016/j.cstp.2025.101530","url":null,"abstract":"<div><div>Expert system techniques have proven effective in predicting traffic accidents, outperforming traditional shallow models. Residential streets, particularly in low- and middle-income countries like Iraq, face significant safety issues, including speeding, cut-through traffic, inadequate infrastructure, and the lack of specialized zones in the current decision-making process. This results in a subjective, expert-dependent approach to traffic management. This paper presents the development of an integrated knowledge-based system (KBS) for predicting and managing traffic accidents on residential streets in Iraq, using the expert system (MPT<strong>C</strong>RSI-ES). The system consists of eight modules with forward chaining functions and fuzzy rules—logical statements that use linguistic variables (e.g., “high risk,” “low traffic”) to handle uncertainty and imprecision, derived from expert evaluations of street scenarios. Equivalent Property Damage Only (EPDO), a weighted index that accounts for fatalities, injuries, and property damage, was used to measure crash severity more effectively than simple crash counts. Experts assessed the scenarios using Cronbach’s alpha and internal consistency reliability (ICR), achieving a Cronbach’s alpha of 0.960 and excellent ICR reliability. The system was validated through case studies on eight residential street sections in Iraq, with matching results between expert answers and system outputs (Cronbach’s alpha = 0.917, ICR = excellent). End-user evaluations showed an overall rating above 4 (Cronbach’s alpha = 0.932, excellent ICR). The Verification, Validation, and Evaluation results confirmed that the system met its objectives. Simulation results indicate that the proposed system can assist traffic authorities in managing and predicting accidents effectively. Quantitative comparisons show that the MPTCRSI-ESsystem outperforms traditional models by approximately 27 % in expert agreement and predictive accuracy, providing a more reliable and efficient approach to traffic management.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101530"},"PeriodicalIF":2.4,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Consumers’ decisions to purchase electric vehicles in Bangkok, Thailand","authors":"Kittipong Tissayakorn","doi":"10.1016/j.cstp.2025.101536","DOIUrl":"10.1016/j.cstp.2025.101536","url":null,"abstract":"<div><div>The Thai government is actively promoting the adoption of electric vehicles (EVs) to enhance environmental sustainability and reduce dependence on fossil fuels. This study investigates the factors that influence consumer decisions to purchase EVs in Bangkok, aligning with national efforts to transition from internal combustion engine vehicles. Based on a sample of 400 valid survey responses collected between April and September 2024, logistic regression model identifies key influencing factors, including gender, age (particularly middle-aged adults), marital status, income level (especially middle- and high-income groups), car ownership, travel distance, and the availability of EV charging stations. Specifically, the installation cost of home charging infrastructure does not significantly affect purchasing decisions. The findings highlight the critical role of demographic characteristics, travel behavior, and infrastructure availability in shaping consumer preferences. Targeted policy measures should prioritize the expansion of strategically located charging stations, particularly near workplaces and commuting corridors, to encourage adoption among likely EV purchasers. Additionally, sustained government support through subsidies, financing schemes, and public infrastructure development is essential to promote equitable access. These strategies will contribute to Bangkok’s long-term goal of achieving a more sustainable and inclusive urban mobility system.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101536"},"PeriodicalIF":2.4,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501408","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Understanding changes in traffic conditions during the Tokyo 2020 Olympic and Paralympic Games","authors":"Takao Dantsuji ,&nbsp;Hiromichi Yamaguchi","doi":"10.1016/j.cstp.2025.101509","DOIUrl":"10.1016/j.cstp.2025.101509","url":null,"abstract":"<div><div>We investigate changes in traffic conditions during the Tokyo 2020 Olympic and Paralympic Games. Given the network topological advantages of the Tokyo Metropolitan area, where most tolled expressways and highways are parallel, the expressways were primarily used for transporting the Olympic families by implementing TDM strategies during the Games. According to Tokyo Metropolitan Government (2021), the daily total trips on the Tokyo Metropolitan expressways decreased by approximately 12 % compared to one week before the Games. However, the temporal changes on traffic conditions have not been fully investigated. To address this gap, we evaluate temporal patterns using the Macroscopic Fundamental Diagram (MFD), estimated from multiple data sources. Additionally, we develop an anomaly detection approach to identify and analyze changes in highway traffic congestion resulting from the TDM strategies implemented during the Games. We find that the expressway traffic conditions were moderately managed at the aggregate level. Moreover, highway traffic congestion patterns did not change significantly during the Games, but several unusual patterns are identified by the anomaly detection approach. We discuss potential reasons for these observations, including the possibility that expressway congestion induced by the TDM strategies contributed to speed reductions on the highways.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101509"},"PeriodicalIF":2.4,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of the distribution of hospital supplies during the Covid-19 pandemic under uncertainties","authors":"Priscila Damasio ,&nbsp;Joyce Azevedo Caetano ,&nbsp;Glaydston Mattos Ribeiro ,&nbsp;Laura Bahiense","doi":"10.1016/j.cstp.2025.101520","DOIUrl":"10.1016/j.cstp.2025.101520","url":null,"abstract":"<div><div>The novel coronavirus pandemic, a biological disaster, has increased the demand for medical supplies. In response, humanitarian logistics has become an important component in disaster management efforts, essential to relieving the suffering of those affected. The unpredictable nature of such crises makes planning these operations a challenge. In this context, mathematical models are crucial tools that support decision-making processes, ensuring effective logistics responses in disaster scenarios. This paper introduces a robust mathematical model designed to optimize the distribution of hospital supplies in scenarios with varying demand. The model serves as a strategic decision support tool by integrating facility location and vehicle allocation, incorporating parameters such as facility opening costs, transportation, travel times, urgency levels, fleet heterogeneity, and the optimal number of trips. Real-world data from five municipalities in Rio de Janeiro, Brazil, were used to validate the model during the Covid-19 pandemic. Computational experiments demonstrated that the robust model effectively balances costs and logistics performance, with total costs increasing by up to 42.7% in medium demand scenarios and decreasing by up to 15.4% in high demand scenarios, depending on the probability of occurrence and risk aversion. The model presents a conservative solution that accommodates different demand scenarios and provides better performance compared to deterministic solutions obtained from the average demand.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101520"},"PeriodicalIF":2.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144365781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring mobile phone use behavior among electric bicycle food delivery riders: an extended theory of planned behavior approach","authors":"Longqian Lu,&nbsp;Meiyu Liu","doi":"10.1016/j.cstp.2025.101535","DOIUrl":"10.1016/j.cstp.2025.101535","url":null,"abstract":"<div><div>This study aims to explore the underlying causes and influencing factors of mobile phone use behavior among electric bicycle food delivery riders during rides. Based on the extended Theory of Planned Behavior (TPB), this research constructs a structural equation model (SEM) that incorporates latent variables such as attitude, subjective norm, perceived behavioral control, traffic environment perception, delivery environment perception, and salary expectation. Data were collected through a questionnaire survey of 121 electric bicycle food delivery riders in Chaoyang District, Beijing, primarily males aged 31–40. Statistical analysis was conducted using SPSS (Version 27) and AMOS (Version 24). The results indicate that attitude and subjective norm have a significant negative impact on riders’ behavioral intentions to use mobile phones, while perceived behavioral control and traffic environment perception exert a significant positive impact on behavioral intention. Additionally, both behavioral intention and perceived behavioral control have a significant positive influence on actual behavior. The study concludes that enhancing safety awareness education and optimizing infrastructure for non-motorized vehicles can effectively reduce the hazardous behavior of mobile phone use during rides, thereby improving the traffic safety of riders.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"21 ","pages":"Article 101535"},"PeriodicalIF":2.4,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144330325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}