Case Studies on Transport Policy最新文献

{"title":"Impact of exogenous events on the demand for on-demand ridepooling in Hamburg","authors":"Lion Pfeil ,&nbsp;Felix Zwick ,&nbsp;Michele D. Simoni","doi":"10.1016/j.cstp.2025.101572","DOIUrl":"10.1016/j.cstp.2025.101572","url":null,"abstract":"<div><div>On-demand ridepooling, as a flexible and efficient mobility solution, could complement traditional public transport during periods of fluctuating demand induced by exogenous events such as concerts, festivals, sporting events, trade fairs, holidays, strikes, and weather conditions. This study investigates the impact of exogenous events on the demand for MOIA’s ridepooling service in Hamburg, the variability in demand among user groups, and spatial zones based on one and a half years of request and ridership data. The study employs temporal and spatiotemporal regression models, quantifying the impact of exogenous events on overall daily demand and different user groups. Findings indicate that ridepooling demand is susceptible to certain exogenous events while showing no effect on others. However, the interaction between event location and event timing has a far greater impact on demand than location alone and is larger than most other spatially related variables. The demand for the same event can also vary significantly in magnitude and direction across different user groups. Increased demand for all user groups results from public transport strikes, concerts at the Trabrennbahn, and outdoor events. Strikes in metro and bus operations show the strongest impact of all, with baseline demand increasing up to four-fold. Varying impacts depending on the user group result from UEFA EURO 2024 matches, holidays, concerts, trade fairs, and weather. These findings can assist ridepooling operators in optimizing their service and offer valuable insights for transport planners and policymakers to enhance network resilience.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101572"},"PeriodicalIF":3.3,"publicationDate":"2025-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144895613","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 the social impact of paratransit: A systematic literature review with a micro-level perspective","authors":"Brianne Nichols ,&nbsp;Érika Martins Silva Ramos ,&nbsp;Lars E. Olsson ,&nbsp;Margareta Friman ,&nbsp;Cecilia Jakobsson Bergstad","doi":"10.1016/j.cstp.2025.101584","DOIUrl":"10.1016/j.cstp.2025.101584","url":null,"abstract":"<div><div>This systematic literature review examines the social impact of paratransit from a micro-level perspective, offering insights into how this mode of transportation influences individuals’ daily lives. Using the PRISMA methodology, 33 publications were identified following an iterative screening process. Five key themes emerged: Barriers, Safety and Risk Concerns, Gender and Socio-Economic Influences, Users’ Opinions and Lived Experiences, and Travel Behavior – Influences and Determinants. The review reveals that paratransit services present significant challenges, particularly for the elderly and disabled, restricting autonomy and social inclusion. Although safety concerns and dissatisfaction with service reliability and cleanliness were common, these issues did not result in notable changes in travel behavior, as users frequently lacked viable alternatives due to financial constraints. Notably, most reviewed studies were conducted in the Global South, which may limit the generalizability of findings to high-income or Western contexts. The review emphasizes the need to address both basic and psychological needs to enhance positive social impact of paratransit, especially in regions where income inequality shapes transportation options. Additionally, standardizing terminology is crucial to ensure consistency in future research.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101584"},"PeriodicalIF":3.3,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010471","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":"Mode choice implications of fare-free public transport during the COVID-19 pandemic – Household survey-based results from a German case study","authors":"Niklas Höing,&nbsp;Conny Louen,&nbsp;Tobias Kuhnimhof","doi":"10.1016/j.cstp.2025.101586","DOIUrl":"10.1016/j.cstp.2025.101586","url":null,"abstract":"<div><div>Cost and travel time are key factors influencing transport mode choice. Therefore, tariff measures are essential for enhancing the appeal of public transport. In addition to fare reductions, implementing free public transport is another viable alternative. However, there are only a few comprehensive evaluations of free public transport that consider both person-related and trip-related attributes. This study addresses this research gap by evaluating the fare-free public transport scheme in the German city of Monheim am Rhein. Using descriptive analyses and binary logit models, we demonstrate that fare-free public transport significantly increases the likelihood of its use. Notably, households with medium economic status are particularly inclined to switch to public transport as a result of this initiative. Personal attributes such as age, gender, car availability, employment status, and trip purpose do not significantly affect the impact of the fare-free scheme on mode choice. The positive effect of fare-free public transport in Monheim am Rhein is especially noteworthy given its implementation at the onset of the COVID-19 pandemic. The introduction of free access led to a quicker rebound in public transport usage compared to national averages post-pandemic. This suggests that long-term usage may surpass pre-COVID-19 levels. In summary, a local fare-free scheme can serve as an important opportunity for monomodal car users to experience public transport for the first time.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101586"},"PeriodicalIF":3.3,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144902815","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":"Average speed dynamics on urban roads and highways: Influence of traffic infrastructure, vehicle and road characteristics on driving behavior","authors":"Alan Ricardo da Silva,&nbsp;Rodrigo Nunes Cavalcante","doi":"10.1016/j.cstp.2025.101591","DOIUrl":"10.1016/j.cstp.2025.101591","url":null,"abstract":"<div><div>Vehicle speed control is important for road safety, directly influencing the frequency and severity of traffic accidents. Proper speed management can significantly reduce the number of accidents and save lives, and is an essential strategy in public road safety policies. The study of driver speed is a pervasive theme in scientific studies, as well as the consequences of high speeds. However, few of them correlate drivers’ behavior with traffic infrastructure and road characteristics. This study aimed to analyzed what can be learned from the radar data about driving behavior related to speeding on urban roads and highways in Brazil, by using average speeds. To do that, it was adopted an observational approach, using data collected from radars with Optical Character Recognition (OCR) operated by traffic agencies on different types of urban roads and highways in the Federal District, Brazil. The results indicated that while OCR radars are effective in reducing the average speed at specific points, challenges persist due to adaptive driver behaviors, such as the “kangaroo jump”, where drivers slow down before the radars and accelerate after passing through them and sometimes the driver’s speed is reduced traffic infrastructure and road characteristics. Another result was that vehicle power is not the main factor for speeding and that drivers are the ones who want to accelerate more, regardless of where they are. This study, of zero cost and replicable on a large scale, suggests that cooperation between traffic agencies for data sharing can enhance efforts in speed moderation, contributing to a safer road environment.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101591"},"PeriodicalIF":3.3,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144892749","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":"Generic approach study for influence characteristics and optimization of guide signs information: case study of separated subgrade sections on freeways","authors":"Yanan Chen ,&nbsp;Xiaohua Zhao ,&nbsp;Jia Li ,&nbsp;Qiqi Liu ,&nbsp;Yan Long ,&nbsp;Wei Han","doi":"10.1016/j.cstp.2025.101570","DOIUrl":"10.1016/j.cstp.2025.101570","url":null,"abstract":"<div><div>The freeway “Separate Subgrade” section presents complex environment, where simplistic sign proves inadequate for effectively conveying precise information to drivers. To enhance traffic information efficacy, the Traffic Control Device Selection Model − Traffic Information (TCDSM-TI), has been proposed as a generalized approach. This method is implemented to systematically layer and overlay sign information, with measurable improvements observed in driving behavior patterns. The model’s logical validation is completed when sign information satisfies drivers’ travel requirements and reaches an optimized threshold range. Ultimately, traffic sign performance improvement is evaluated to identify the most suitable the most suitable sign design scheme. Results indicates that for the separated subgrade sections, based on existing facilities, the integration of 800-meter and 200-meter warning sign information significantly improves guidance. This integration facilitates earlier driver awareness, promotes clearer route selection, and improves operational stability. Furthermore, navigation systems corresponding to the optimized signage have been implemented, resulting in substantial improvements in driver behavior and traffic operation status. Overall, drivers demonstrate a 3.77% increase in speed regulation ability, a 3.68% improvement in the speed control ability, a 4.73% increase in the lateral stability, and especially a 36.49% increase in the lateral operation safety. Additionally, the TCDSM-TI approach provides a valuable framework for addressing information delivery under complex road conditions, thereby supporting standardized design and optimizing the utilization of traffic guide signs system.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101570"},"PeriodicalIF":3.3,"publicationDate":"2025-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144989025","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":"Examining the typology of global pandemic impacts on maritime operations and management","authors":"Lam Canh Nguyen ,&nbsp;Duy Le Anh Tran ,&nbsp;Mohammadreza Akbari ,&nbsp;Vinh V. Thai","doi":"10.1016/j.cstp.2025.101580","DOIUrl":"10.1016/j.cstp.2025.101580","url":null,"abstract":"<div><div>This paper examines the typology of COVID-19′s impacts on the maritime industry. Following the PRISMA method, we conducted a structured literature review of studies up to 2024, encompassing 143 articles. We first synthesized the demographics of this collection by grouping publishers, journals, methodological approaches, and countries of publication, followed by a content analysis. The findings reveal a typology of pandemic impacts across four main areas: ports, shipping activities, seafarers, and the maritime environment. The COVID-19 pandemic significantly disrupted port operations worldwide, leading to increased restrictions and global supply chain interruptions, resulting in port congestion and a marked decline in throughput and service quality. Similarly, the shipping industry faced substantial drops in demand, with variations across sub-sectors, causing fluctuations in different shipping markets. Additionally, the pandemic created a humanitarian crisis for seafarers, jeopardizing their well-being onboard. While COVID-19 led to reductions in water, noise, and air pollution from shipping, it also had adverse effects on coral reefs. Finally, the paper discusses research trends, key implications, and future research directions related to this topic.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101580"},"PeriodicalIF":3.3,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144890961","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":"Premature casual carpooling in Texas: analyzing customer churn in the Metropia experiment with survival analysis and machine learning","authors":"Peng Chen ,&nbsp;Xiankui Yang","doi":"10.1016/j.cstp.2025.101587","DOIUrl":"10.1016/j.cstp.2025.101587","url":null,"abstract":"<div><div>This study makes a timely contribution to peer-to-peer mobility research by employing a hybrid analytical framework that integrates survival analysis (Cox Proportional Hazards model) with advanced machine learning techniques (XGBoost and SHAP values) to uncover nuanced patterns of user churn in the Metropia app. The Metropia experiment, a peer-to-peer carpooling program, was conducted in Austin and El Paso, TX, with a sample of 3,227 users who first engaged with the app between January 1, 2016, and December 31, 2018. By connecting sociodemographic factors, trip characteristics, and app incentives to user retention, this study offers a data-driven view of behavior on mobility platforms. Results show that older users, females, and telecommuters are more likely to stay, while higher-income households, larger families, long commutes, and experienced drivers show higher churn. Several app features show complex, non-linear effects on disengagement. Interpreted through the lenses of transaction cost economics, network effects, and prospect theory, these findings highlight the importance of reducing perceived user costs and enhancing value through thoughtful app design. The study not only identifies critical behavioral and structural challenges facing casual carpooling but also sheds light on its premature development stage. It offers actionable insights for platform developers and planners to enhance engagement and retention, while calling on local governments to support shared mobility through strategic policy and urban design. This research ultimately advances the discourse on sustainable urban transportation and the future of the sharing economy.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101587"},"PeriodicalIF":3.3,"publicationDate":"2025-08-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144902809","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":"Public perceptions and support for policies enhancing safety and justice in connected and automated vehicles and vulnerable road users interactions","authors":"Laura Martínez-Buelvas ,&nbsp;Andry Rakotonirainy ,&nbsp;Deanna Grant-Smith ,&nbsp;Md Mazharul Haque ,&nbsp;Oscar Oviedo-Trespalacios","doi":"10.1016/j.cstp.2025.101571","DOIUrl":"10.1016/j.cstp.2025.101571","url":null,"abstract":"<div><div>Despite the anticipated benefits, the rollout of Connected and Automated Vehicles (CAVs) is likely to encounter numerous challenges, including public readiness to adopt and coexist with these vehicles. This study utilised a cross-sectional survey of 384 Australian residents aged 18 to 82 (M = 42.93, SD = 15.48) to assess public perceptions and support for policies designed to enhance safety and justice in interactions between CAVs and vulnerable road users (VRUs) such as pedestrians, cyclists and people with disabilities. Participants evaluated 15 policies (identified through a structured, expert-informed process as a preliminary stage) across five evaluation dimensions: acceptability for improving safety within the transport system, acceptability for improving justice within the transport system, perceived improvement of safety for all VRUs, perceived improvement of justice for all VRUs, and willingness to support each policy. Data were analysed using descriptive statistics, cluster analysis, and hierarchical regression models. Policies focusing on systemic improvements, such as VRU-focused infrastructure and technology enhancements, received strong public support. Public preferences align with policies promoting fairness and inclusivity, while punitive measures and VRU-burdening policies were resisted. Cluster analysis identified three groups: VRU-burdening policies (low support), VRU-centric safety policies (moderate support), and VRU-focused infrastructure and technology policies (high support). Regression analyses revealed that factors such as age, transport accessibility, and disability influenced policy support. A content analysis revealed a strong preference for prioritising public transport investment, implementing inclusive urban designs, and establishing robust ethical frameworks. The findings highlight the need for policies that prioritise VRU safety and justice in CAV deployment. Support for inclusive, non-punitive measures points to the importance of fairness and system-wide reforms. To transition toward a safer, more equitable transport system, the study suggests the potential for more radical, community-driven policies and increased transparency in CAV development.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101571"},"PeriodicalIF":3.3,"publicationDate":"2025-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144865497","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":"Effects of meteorological factors on students’ commute to high school","authors":"Israel Villarrasa-Sapiña ,&nbsp;Sergio Montalt-García ,&nbsp;Xavier García-Massó ,&nbsp;Luis-Millán González-Moreno","doi":"10.1016/j.cstp.2025.101568","DOIUrl":"10.1016/j.cstp.2025.101568","url":null,"abstract":"<div><div>Limited physical activity and a sedentary lifestyle are common among young people. The use of a bike sharing system (BSS) to commute to and from school seems to be a good way of promoting physical activity among students. However, choosing a means of transportation may be influenced by meteorological conditions. This study aimed to determine how meteorological conditions affect students’ use of BSS for commuting to and from high school. A self-organizing maps analysis was conducted to obtain information on the characteristics of the students’ daily commute. Use of the BSS and the meteorological condition of each day were selected as input variables. The Kruskal–Wallis test was used to determine the main effect of the cluster on the input variables. The results revealed six clusters (profiles) of days. Four clusters represented favorable meteorological conditions and higher BSS use. The remaining clusters grouped unfavorable conditions and lower BSS use. Comfortable temperatures (14.4–22.6 °C), low humidity, and light-to-moderate breeze (i.e. wind) had a positive influence on the use of the BSS by the students. Conversely, temperatures &lt;14.2 °C and high humidity (&gt;73 %) had a negative effect on the use of the BSS. Furthermore, rainfall had a nonlinear effect on the use of the BSS, whereas heavy precipitation had a negative effect on use of the BSS. However, light precipitation had no effect on BSS use. These findings indicate that meteorological conditions have a significant effect on the use of a BSS for active commuting to school by young students. Efforts should be made to provide better BSS infrastructure to encourage young people to use the BSS for active commuting.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101568"},"PeriodicalIF":3.3,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144887070","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":"Using multiplayer simulation to evaluate incentive-based strategies for reducing congestion and carbon emissions: A case study of campus travel in Huainan, China","authors":"Jichao Geng ,&nbsp;Shengyu Liu ,&nbsp;Rebecca Kechen Dong ,&nbsp;Ruyin Long","doi":"10.1016/j.cstp.2025.101569","DOIUrl":"10.1016/j.cstp.2025.101569","url":null,"abstract":"<div><div>The debate between price-based and quantity-based approaches to carbon regulation has been a longstanding focus among scholars aiming to control emissions and advance low-carbon development. This study explores and compares the effects of two intervention models on individuals’ low-carbon travel decisions. Using Huainan in China as a case study of urban campus travel, we employed a multiplayer online simulation experiment conducted on the ZTree platform. The experimental scenario simulated short-distance leisure travel (within 5 km) under three conditions: no intervention, price-based intervention (via a travel-mode tax), and group-targeted intervention (via a shared carbon emission quota). A total of 600 campus travelers were organized into 20 groups of 30 participants. Across 30 rounds of decision-making, participants selected transport modes under varying policy scenarios. The findings revealed that both interventions effectively reduced traffic congestion and carbon emissions, with the group target-based intervention demonstrating more consistent and robust effects. Additionally, both psychological factors (attitude, subjective norms, perceived behavioral control, intention, face consciousness, and habits) and demographic factors (gender, age, income, family structure, private car ownership, and housing status) predict changes in participants’ traffic-related carbon emissions before and after the experiment, with demographic factors exerting a stronger influence overall. This study offers empirical evidence to inform policy design aimed at reducing urban traffic congestion and transport-related carbon emissions, particularly within university commuting contexts in medium-sized Chinese cities.</div></div>","PeriodicalId":46989,"journal":{"name":"Case Studies on Transport Policy","volume":"22 ","pages":"Article 101569"},"PeriodicalIF":3.3,"publicationDate":"2025-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144895614","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}