Journal of Transport Geography最新文献

{"title":"Spatial accessibility measurement of urban fire stations considering multi-path characteristic of road networks","authors":"Jingjing Zhu ,&nbsp;Xiangdong Xu ,&nbsp;Xin Yang","doi":"10.1016/j.jtrangeo.2025.104248","DOIUrl":"10.1016/j.jtrangeo.2025.104248","url":null,"abstract":"<div><div>Given the travel time variability and potential disruptions in urban road networks, fire and rescue services may encounter unexpected response delays or even inaccessibility despite having the highest road privilege. This paper develops a multi-path accessibility measurement model tailored for fire stations (FSs). This model assesses the resilience of road networks surrounding fire and rescue systems by considering both the timely response requirement of fire and rescue services and the unique characteristics of multiple paths within road networks. The proposed model incorporates the availability of multiple road paths for fire vehicles as a strategic approach during the ex-ante stage to proactively address uncertainties inherent in road networks. By operating across three distinct levels, this model provides a comprehensive multi-path accessibility measurement of fire and rescue services in terms of their effectiveness at fire station - fire demand point (FS-FDP) pairs, spatial equity among FDPs, and resilience of FSs in navigating the challenges posed by uncertainties in road networks. The proposed model is applied to a realistic case study in Xuhui, Shanghai. Results indicate significant differences in the multi-path accessibility across three distinct levels, demonstrating the spatial inequity and disparity in the resilience of road networks surrounding fire and rescue systems. Meanwhile, we observe that the multi-path accessibility is greatly affected by road network density and travel time reliability. The proposed model can help identify the factors contributing to insufficient accessibility of fire and rescue services from the perspective of urban road network conditions, supplementing traditional accessibility measures to prevent misguided investments in fire and rescue facilities and guide the urban fire system planning.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104248"},"PeriodicalIF":5.7,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Network centralities and traffic safety in transportation networks: Evidence from the Amtrak railways","authors":"Shlok Kamat ,&nbsp;Satyam Mukherjee ,&nbsp;Tarun Jain","doi":"10.1016/j.jtrangeo.2025.104246","DOIUrl":"10.1016/j.jtrangeo.2025.104246","url":null,"abstract":"<div><div>Railway safety is crucial due to the significant human and economic costs of railway crashes. With more than 1000 accidents reported in the last decade in the United States, railway crashes along the Amtrak remain a major concern. This underscores an ongoing safety challenge that the industry must urgently address. How do network centrality measures explain traffic safety in transportation networks? In this work, we conduct an empirical investigation on the power and significance of the impact of four network centrality measures on the frequency of crashes in the USA's railway network. Leveraging two datasets on railway crashes at U.S. highway-rail grade crossings (HRGC) and Amtrak traffic from 2010 to 2020 and employing advanced spatial econometric models, we show that a station's weighted degree centrality (strength) and local clustering coefficient have no significant impact on the frequency of crashes. Interestingly, there exists a strong and positively significant effect of the weighted betweenness centrality and <em>k-</em>core index of the station on the number of crashes. In this analysis, a crash at an Amtrak station refers to an incident occurring at the nearest highway-rail grade crossing (HRGC) site. Our findings contribute to the growing body of research on transportation safety and offer valuable insights for policymakers and traffic analysts in identifying potential crash hotspots and enhancing safety interventions in the railway network.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104246"},"PeriodicalIF":5.7,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143855956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Analysis of ride-hailing service discontinuity: Links to built environment and public transportation","authors":"Hui Wang ,&nbsp;Xiaowei Hu ,&nbsp;Yantang Zhang ,&nbsp;Shi An","doi":"10.1016/j.jtrangeo.2025.104242","DOIUrl":"10.1016/j.jtrangeo.2025.104242","url":null,"abstract":"<div><div>The saturation of the ride-hailing market has intensified competition among drivers for ride requests, leading to a continuous decline in their satisfaction. Understanding the impact of built environment variables on drivers' access to services has become crucial. This study defines Ride-hailing Service Discontinuity (RSD) by weighting the transfer time and distance between two consecutive rides of drivers to quantify the difficulty drivers face in accessing services. This paper explores the effects of built environment variables on RSD in Hangzhou by integrating Hierarchical Density-Based Spatial Clustering of Applications with Noise (HDBSCAN) clustering, Conditional Tabular Generative Adversarial Network (CTGAN) data augmentation, Light Gradient Boosting Machine (LightGBM) combined with SHapley Additive exPlanations (SHAP) explainable machine learning technique, and Stacking Ensemble Prediction. The results indicate that the impact of built environment variables on RSD exhibits regional variability and nonlinear effects. The nonlinear effects are manifested in two forms: similar nonlinear patterns with different thresholds and changes in nonlinear form. Threshold effects are widely observed in built environment variables, and some variables (e.g., Slope) exhibit consistent marginal contribution to RSD within a specific threshold range. In addition, the Stacking Ensemble Prediction is better at capturing the inherent relationships between variables and RSD, demonstrating higher prediction accuracy. In particular, when the performance of base models is moderate, the ensemble prediction performs better. This study provides a novel approach to understanding the impact of the built environment on ride-hailing from the driver's perspective.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104242"},"PeriodicalIF":5.7,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143844107","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Active travel street intervention ideas in Malta: Evaluating citizen feedback using sentiment analysis","authors":"Karyn Scerri,&nbsp;Maria Attard","doi":"10.1016/j.jtrangeo.2025.104241","DOIUrl":"10.1016/j.jtrangeo.2025.104241","url":null,"abstract":"<div><div>Within the sphere of co-creation and experimentation and the promotion of sustainable urban mobility, urban living labs (ULLs) and digital engagement platforms have emerged as key methodological approaches and tools. This paper focuses on the context of a car-dependent island in the Mediterranean – Malta, where the introduction of active travel interventions is an essential but persistently difficult undertaking. The study aims to test a fully virtual method to better understand the perceptions of the islands' population of such interventions. The study deploys a Virtual Urban Living Lab (VULL), a purposely designed online participatory platform with interactive activities in which participants can give feedback on proposed intervention ideas and propose their own. The feedback was collected from 113 users over the span of a week in December 2023. Using sentiment analysis conducted through a large language model (ChatGPT 4), the findings from the VULL shed light on how the Maltese population perceives stakeholder-proposed ideas to re-design urban streets. A discussion on the main challenges and points of contention, and the positive features of the proposed intervention follows. The paper concludes with an overview of the policy-relevant feedback and the potential for urban planners and policymakers to use VULL and language models as tools for understanding public sentiment.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104241"},"PeriodicalIF":5.7,"publicationDate":"2025-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cross-validation between GPS-derived trajectories and activity-travel diaries for transport geography studies","authors":"Jianying Wang ,&nbsp;Yang Liu ,&nbsp;Mei-Po Kwan","doi":"10.1016/j.jtrangeo.2025.104239","DOIUrl":"10.1016/j.jtrangeo.2025.104239","url":null,"abstract":"<div><div>Transport and health studies need elaborated contextual information to establish causally relevant associations between built environment factors, mobility characteristics, and health outcomes. However, current approaches face various challenges in reliably obtaining contextual attributes. Therefore, investigating the capability of combining contextual attributes collected from different time-geographic approaches is essential for promoting data quality of contextual attributes but missing in previous studies. To address this issue, this study employed data collected in a cross-sectional survey in Hong Kong to cross-validate activity-travel diaries and GPS-derived trajectories, two primary data collection approaches in transport geography studies. We recruited 782 participants in four representative communities through a stratified sampling scheme. Participants were asked to fill out activity-travel diaries and carry a GPS-equipped smartphone on a working day and a non-working day, respectively. Staying/moving events were identified from the GPS-derived trajectories using a spatiotemporal clustering algorithm while activity-travel records were manually aggregated as activity-travel events, which were then matched with the corresponding staying/moving events. Rigorous preprocessing revealed that about 90 % of the 8500 detected events matched well across the two approaches, and about 76 % of them are one-to-one matched events. Yet, the matching rate shows significant disparities between different socio-demographic groups and geographic and activity contexts. The findings indicate that GPS-derived events can mitigate recall biases in the temporality of activity/travel, while diary-based events provide enriched contextual attributes unavailable from GPS data alone. Our study systematically articulates the (mis)match between different approaches for collecting contextual attributes, and it provides essential insights and protocols for a broad scope of environmental and transport studies that need elaborate and comprehensive contextual information.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104239"},"PeriodicalIF":5.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828575","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A system analysis of gender-based perceptions of transportation security in the Valparaiso region of Chile","authors":"Carolina Busco ,&nbsp;Felipe González ,&nbsp;Jeffrey P. Walters ,&nbsp;Katherine Rozas","doi":"10.1016/j.jtrangeo.2025.104221","DOIUrl":"10.1016/j.jtrangeo.2025.104221","url":null,"abstract":"<div><div>This study explores the complex and interconnected perceptions of insecurity within Gran Valparaíso's public transportation system, with a focus on gender-based differences. Through semi-structured interviews with 27 male and 24 female stakeholders, we used purposive text analysis (PTA) and qualitative system dynamics modeling to map mental models and identify key drivers of gendered perceptions of transportation security. The PTA revealed 31 factors influencing safety perceptions across five dimensions: State, Transport System, Bus Drivers, Social Issues, and User Behavior, along with 646 causal connections—409 and 237 of which related to public transportation challenges and solutions, respectively. Comparative analysis of the models for male and female stakeholders showed that while males mainly associate insecurity with crime, females face a broader array of concerns, including harassment, distrust, and inadequate infrastructure. The findings highlight how poor infrastructure, limited surveillance, and negligent driver behavior disproportionately affect female passengers' perceptions of safety. These results call for targeted interventions, including enhanced surveillance, better infrastructure, and gender-sensitive policies to improve security. To address these challenges, a systems approach is needed, incorporating both urban design improvements and community-based initiatives—such as alert systems and driver training—that reduce reliance on private security and create a more inclusive, accessible public transportation environment.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104221"},"PeriodicalIF":5.7,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143834897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Heterogeneity in inter-episode intervals for discretionary activities; covariate-dependent finite mixture models","authors":"Pim Labee ,&nbsp;Seheon Kim ,&nbsp;Soora Rasouli","doi":"10.1016/j.jtrangeo.2025.104219","DOIUrl":"10.1016/j.jtrangeo.2025.104219","url":null,"abstract":"<div><div>Even though the importance of considering day-to-day variability in travel demand modeling has long been acknowledged in the field, most state-of-the-art activity-based models still only have a single-day prediction horizon. As such, bias arises from the aggregation to ‘an average’ day. A few which differentiate between days of the week (such as Albatross) still fail to incorporate dependencies between activities conducted in multiple days. Understanding the heterogeneity in (ir)regularity of discretionary activities and the inter-episode durations with which they are conducted, is a stepping stone to extend ABMs to multi-day horizon models. Over two years of GPS data from the Netherlands are used to estimate exponential models to capture irregular activity conductors, while Erlang-<em>k</em> models are estimated to represent the regular activity conductors. A mixture model of the exponential-Erlang-2 model is presented where the extent of activity-regularity is endogenously estimated. The heterogeneity within each group is estimated in a non-parametric fashion and, in certain cases, is shown to outperform the parametric equivalence. The proposed models are applied to grocery shopping, non-grocery shopping and leisure activities.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104219"},"PeriodicalIF":5.7,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An adapted centrality index to assess spatial accessibility in street networks: Application to two medium-sized cities in Brazil","authors":"Gustavo Maciel Gonçalves ,&nbsp;Clarice Maraschin ,&nbsp;Ana Luisa Maffini","doi":"10.1016/j.jtrangeo.2025.104238","DOIUrl":"10.1016/j.jtrangeo.2025.104238","url":null,"abstract":"<div><div>This paper explores an adapted network-based measure for assessing spatial accessibility in urban street networks: the Potential Accessibility (PA) index. Building upon network centrality measures and incorporating concepts from transportation and geography studies, the proposed index integrates spatial competition for limited-capacity opportunities into a directed, weighted network model. The PA index accounts for both supply (e.g., employment opportunities) and demand (e.g., population) attributes, and their spatial interaction within a global analysis or a local one (with a predefined catchment radius). To demonstrate the PA index's properties and practical relevance, we apply it to two medium-sized Brazilian cities, analyzing accessibility to formal employment opportunities. We conducted four experiments: an unweighted analysis, a supply-weighted analysis, a competition-based analysis with both supply and demand weights, and a local accessibility analysis using a 1600-m radius. A fifth experiment compares the PA index to Reach centrality, a non-competitive network-based accessibility measure. Results reveal how variations in street network configuration influence accessibility outcomes and inequality patterns, captured using the Palma Ratio. The PA index distinguishes local from global accessibility more effectively than the Reach index and better reveals how competition and proximity affect opportunity access. The method's flexibility allows for multiscalar analysis, integration of social attributes, and scenario simulations, supporting planning applications aimed at equitable access to services. The study contributes to accessibility research especially by introducing a network-based framework with the potential to enhance proximity-centered and local accessibility urban policies, particularly relevant to small and medium-sized cities.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104238"},"PeriodicalIF":5.7,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143828611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Towards vulnerability urban road networks: Adaptive topological optimization and network performance analysis","authors":"Yinghui Nie ,&nbsp;Jingpei Li ,&nbsp;Kum Fai Yuen ,&nbsp;Xin Mao","doi":"10.1016/j.jtrangeo.2025.104237","DOIUrl":"10.1016/j.jtrangeo.2025.104237","url":null,"abstract":"<div><div>To address the vulnerability of complex transportation networks during sudden events and attacks, this study focuses on the road network of Fucheng District in Mianyang City and proposes an adaptive topological expansion optimization model to enhance the original road network data. Densely populated region adjustments were considered to calculate the composite vulnerability index of nodes. The analysis examined road network composite vulnerability index changes under different intentional attack strategies (e.g., targeting nodes with the highest or lowest composite vulnerability index first) and user response behaviors (comprehensive information availability and limited information acquisition). The results indicate that targeting nodes with the highest vulnerability causes 2.5 times more overall vulnerability than targeting nodes with the lowest vulnerability. Under comprehensive information availability (CIA) conditions, the road network's composite vulnerability index decreases by approximately 0.02 compared to limited information availability (LIA) conditions. The adjustment method accounting for population density distribution effectively identifies and protects critical nodes, enhancing the composite importance index within densely populated regions. This research provides theoretical support and practical tools for improving the robustness and pre-disaster preparedness of transportation networks.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104237"},"PeriodicalIF":5.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820528","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Cycling cities: Measuring urban mobility mixing in bikeshare networks","authors":"Timothy Fraser ,&nbsp;Katherine Van Woert ,&nbsp;Sophia Olivieri ,&nbsp;Jonathan Baron ,&nbsp;Katelyn Buckley ,&nbsp;Pamela Lalli","doi":"10.1016/j.jtrangeo.2025.104223","DOIUrl":"10.1016/j.jtrangeo.2025.104223","url":null,"abstract":"<div><div>To promote low-carbon transit, cities are increasingly adopting public-private partnerships to offer bikeshare services. But some neighborhoods use bikeshare services more than others, raising questions about how equitable these public programs' rollout has been. We examined the entire temporal directed network of individual rides from Boston's Bluebikes program, tracking bikers' starting and ending stations from 2011 to 2021. We hypothesized that ridership levels are lower between neighborhoods of color than white neighborhoods, and greater between wealthier neighborhoods than working class neighborhoods. We designed edgewise block permutation tests to measure the statistical significance of mobility between similar neighborhoods, while controlling through permutation blocks for population density, program geography, distance, and the distribution of race, wealth, education, and age. The network is deeply stratified by race and income, with more homophilous movement between neighborhoods from similar income brackets than expected due to chance. Race is linked to considerable homophily, but with low statistical significance. However, homophilous mobility by income and race has dropped sharply from 2011 to 2021, suggesting that Bluebikes is gradually reaching a broader range of neighborhoods. This presents signs of hope for a transition to equitable transit options in other major US cities as well.</div></div>","PeriodicalId":48413,"journal":{"name":"Journal of Transport Geography","volume":"126 ","pages":"Article 104223"},"PeriodicalIF":5.7,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817054","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}