Transportation Research Interdisciplinary Perspectives最新文献_第5页

A unified safety framework for automated vehicle development: integrating ISO 26262, SOTIF, and UL 4600 自动驾驶汽车开发的统一安全框架：集成ISO 26262、SOTIF和UL 4600

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-07 DOI: 10.1016/j.trip.2025.101831

Morteza Soleimani, Ayse Aysu Sari

The safe deployment of Automated Vehicles (AVs) requires the coordinated application of multiple safety standards, each addressing distinct aspects of system performance and risk. This paper introduces a unified safety framework that integrates ISO 26262, ISO 21448 (SOTIF), and UL 4600 to support comprehensive safety assurance across the AV development lifecycle. The study begins by outlining a structured methodology for identifying, analysing, and synthesising relevant standards and academic literature. A key contribution of this work is the integration of System-Theoretic Process Analysis (STPA) with the Hazard Analysis and Risk Assessment (HARA) process, enabling system-level performance-related hazards identified through STPA to be systematically classified and assigned Automotive Safety Integrity Level (ASIL) levels via HARA. This combined workflow provides a coherent mechanism for mapping hazards, safety goals, and functional requirements across the three standards. A harmonised safety framework is then developed, aligning the complementary strengths of each standard within the concept and early design phases. The framework is validated through a detailed case study of Adaptive Cruise Control with Lane Centring, a representative Level 2 automation feature. The case demonstrates how the unified framework can enhance traceability, reduce redundancy, and support consistent cross-standard compliance. Broader challenges, including evolving AV software behaviours and the applicability of UL 4600 to lower automation levels are also identified. This research offers a structured, standards-based methodology that strengthens practical safety assurance and establishes a foundation for scalable, transparent, and unified AV safety practices.

自动驾驶汽车（AVs）的安全部署需要多种安全标准的协调应用，每个标准都针对系统性能和风险的不同方面。本文介绍了一个集成了ISO 26262、ISO 21448 （SOTIF）和UL 4600的统一安全框架，以支持整个自动驾驶汽车开发生命周期的全面安全保证。本研究首先概述了识别、分析和综合相关标准和学术文献的结构化方法。这项工作的一个关键贡献是将系统理论过程分析（STPA）与危害分析和风险评估（HARA）过程集成在一起，使通过STPA识别的系统级性能相关危险能够通过HARA系统地分类和分配汽车安全完整性等级（ASIL）。这个组合的工作流程为跨三个标准映射危险、安全目标和功能需求提供了一致的机制。然后制定一个统一的安全框架，在概念和早期设计阶段调整每个标准的互补优势。通过对具有代表性的2级自动化功能——车道定心的自适应巡航控制的详细案例研究，验证了该框架。案例演示了统一框架如何增强可追溯性、减少冗余和支持一致的跨标准遵从性。还确定了更广泛的挑战，包括不断发展的自动驾驶软件行为和UL 4600对较低自动化水平的适用性。这项研究提供了一种结构化的、基于标准的方法，加强了实际的安全保证，并为可扩展、透明和统一的自动驾驶安全实践奠定了基础。

{"title":"A unified safety framework for automated vehicle development: integrating ISO 26262, SOTIF, and UL 4600","authors":"Morteza Soleimani, Ayse Aysu Sari","doi":"10.1016/j.trip.2025.101831","DOIUrl":"10.1016/j.trip.2025.101831","url":null,"abstract":"<div><div>The safe deployment of Automated Vehicles (AVs) requires the coordinated application of multiple safety standards, each addressing distinct aspects of system performance and risk. This paper introduces a unified safety framework that integrates ISO 26262, ISO 21448 (SOTIF), and UL 4600 to support comprehensive safety assurance across the AV development lifecycle. The study begins by outlining a structured methodology for identifying, analysing, and synthesising relevant standards and academic literature. A key contribution of this work is the integration of System-Theoretic Process Analysis (STPA) with the Hazard Analysis and Risk Assessment (HARA) process, enabling system-level performance-related hazards identified through STPA to be systematically classified and assigned Automotive Safety Integrity Level (ASIL) levels via HARA. This combined workflow provides a coherent mechanism for mapping hazards, safety goals, and functional requirements across the three standards. A harmonised safety framework is then developed, aligning the complementary strengths of each standard within the concept and early design phases. The framework is validated through a detailed case study of Adaptive Cruise Control with Lane Centring, a representative Level 2 automation feature. The case demonstrates how the unified framework can enhance traceability, reduce redundancy, and support consistent cross-standard compliance. Broader challenges, including evolving AV software behaviours and the applicability of UL 4600 to lower automation levels are also identified. This research offers a structured, standards-based methodology that strengthens practical safety assurance and establishes a foundation for scalable, transparent, and unified AV safety practices.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"36 ","pages":"Article 101831"},"PeriodicalIF":3.8,"publicationDate":"2026-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145928662","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}

引用次数: 0

Urban forms across continents: A data-driven comparison of Lausanne and Philadelphia 跨大洲的城市形态：洛桑和费城的数据驱动比较

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-06 DOI: 10.1016/j.trip.2025.101823

Arthur Carmès , Léo Catteau , Andrew Sonta , Arash Tavakoli

Understanding urban form is crucial for sustainable urban and transportation planning, and for enhancing quality of life. This study presents a data-driven framework to systematically identify and compare urban forms across geographically and culturally distinct cities. Using open-source geospatial data from OpenStreetMap, we extracted multidimensional features related to network structure, multimodality, green spaces, and points of interest for the cities of Lausanne, Switzerland, and Philadelphia, USA. A grid-based approach was used to divide each city into Basic Spatial Units (BSU), and Gaussian Mixture Models (GMM) were applied to cluster BSUs based on their urban characteristics. The results reveal coherent and interpretable urban forms within each city, with some cluster types emerging across both cities despite their differences in scale, density, and cultural context. Comparative analysis showed that adapting the grid size to each city’s forms improves the detection of shared typologies. Simplified clustering based solely on network degree centrality further demonstrated that meaningful structural patterns can be captured even with minimal feature sets. Our findings suggest the presence of functionally convergent urban forms across continents and highlight the importance of spatial scale in cross-city comparisons. The framework offers a scalable and transferable approach for urban analysis and transportation planning providing valuable insights for planners and policymakers aiming to enhance various aspects of cities including walkability, accessibility, and well-being. Limitations related to data completeness and feature selection are discussed, and directions for future work — including the integration of additional data sources and human-centered validation — are proposed.

了解城市形态对于可持续的城市和交通规划以及提高生活质量至关重要。本研究提出了一个数据驱动的框架，以系统地识别和比较地理和文化上不同的城市的城市形态。利用OpenStreetMap的开源地理空间数据，我们提取了瑞士洛桑和美国费城城市的网络结构、多模态、绿色空间和兴趣点等多维特征。采用网格划分方法将城市划分为基本空间单元（BSU），并根据城市特征采用高斯混合模型（GMM）对BSU进行聚类。研究结果显示，尽管两个城市在规模、密度和文化背景上存在差异，但在两个城市中都出现了一些集群类型。对比分析表明，根据每个城市的形态调整网格大小可以提高对共享类型的检测。仅基于网络度中心性的简化聚类进一步证明，即使使用最小的特征集也可以捕获有意义的结构模式。我们的研究结果表明，跨大洲存在功能趋同的城市形式，并强调了空间尺度在跨城市比较中的重要性。该框架为城市分析和交通规划提供了一种可扩展和可转移的方法，为规划者和决策者提供了有价值的见解，旨在提高城市的各个方面，包括可步行性、可达性和福祉。讨论了与数据完整性和特征选择相关的限制，并提出了未来工作的方向——包括集成额外的数据源和以人为中心的验证。

{"title":"Urban forms across continents: A data-driven comparison of Lausanne and Philadelphia","authors":"Arthur Carmès , Léo Catteau , Andrew Sonta , Arash Tavakoli","doi":"10.1016/j.trip.2025.101823","DOIUrl":"10.1016/j.trip.2025.101823","url":null,"abstract":"<div><div>Understanding urban form is crucial for sustainable urban and transportation planning, and for enhancing quality of life. This study presents a data-driven framework to systematically identify and compare urban forms across geographically and culturally distinct cities. Using open-source geospatial data from OpenStreetMap, we extracted multidimensional features related to network structure, multimodality, green spaces, and points of interest for the cities of Lausanne, Switzerland, and Philadelphia, USA. A grid-based approach was used to divide each city into Basic Spatial Units (BSU), and Gaussian Mixture Models (GMM) were applied to cluster BSUs based on their urban characteristics. The results reveal coherent and interpretable urban forms within each city, with some cluster types emerging across both cities despite their differences in scale, density, and cultural context. Comparative analysis showed that adapting the grid size to each city’s forms improves the detection of shared typologies. Simplified clustering based solely on network degree centrality further demonstrated that meaningful structural patterns can be captured even with minimal feature sets. Our findings suggest the presence of functionally convergent urban forms across continents and highlight the importance of spatial scale in cross-city comparisons. The framework offers a scalable and transferable approach for urban analysis and transportation planning providing valuable insights for planners and policymakers aiming to enhance various aspects of cities including walkability, accessibility, and well-being. Limitations related to data completeness and feature selection are discussed, and directions for future work — including the integration of additional data sources and human-centered validation — are proposed.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"36 ","pages":"Article 101823"},"PeriodicalIF":3.8,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897909","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}

引用次数: 0

The impact of Qilu strategy on boosting economic growth in China’s Belt and Road Initiative: an empirical study 齐鲁战略对中国“一带一路”经济增长的影响：一个实证研究

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-06 DOI: 10.1016/j.trip.2025.101817

Fang Hui , Tufail Hussain , Kun Li

This study examines the impact of the Qilu freight train on firm-level productivity within the context of China’s Belt and Road Initiative. While prior research has highlighted the role of infrastructure in facilitating trade and regional development, limited evidence exists on how such projects influence micro-level productivity and whether effects differ across firm types. To address this gap, this paper investigates whether and how the Qilu train enhances firm productivity, through which mechanisms, and under what conditions. Using panel data of Chinese listed firms from 2013 to 2019 and employing a difference-in-differences approach, the study first establishes the baseline impact of Qilu connectivity on total factor productivity. Mechanism analysis then identifies cost reduction and innovation as the main transmission channels, while heterogeneity tests assess differences across firm ownership, innovation intensity, cost structures, regions, and industrial linkages. The results reveal that the Qilu train significantly improves firm productivity, with more potent effects observed in inland firms, private enterprises, high-cost producers, and firms integrated into Northeast Asian industrial chains. Notably, both cost savings and innovation incentives contribute, though their relative importance varies across firm characteristics. These findings demonstrate the productivity-enhancing role of international freight rail and highlight its contribution to reducing regional and institutional disparities. The study provides new empirical evidence on the microeconomic benefits of the Belt and Road Initiative, offering insights for policymakers on how infrastructure projects can foster inclusive and innovation-driven growth.

本研究考察了在中国“一带一路”倡议背景下，齐鲁货运列车对企业生产率的影响。虽然先前的研究强调了基础设施在促进贸易和区域发展方面的作用，但关于这些项目如何影响微观层面的生产率以及影响是否因公司类型而异的证据有限。为了解决这一差距，本文研究了齐鲁列车是否以及如何提高企业生产率，通过哪些机制以及在什么条件下提高企业生产率。利用2013 - 2019年中国上市公司的面板数据，采用差异中的差异方法，首先建立了齐鲁连通性对全要素生产率的基线影响。然后，机制分析确定成本降低和创新是主要的传导渠道，而异质性检验评估了企业所有权、创新强度、成本结构、地区和产业联系之间的差异。结果表明，齐鲁列车显著提高了企业生产率，对内陆企业、民营企业、高成本生产商和融入东北亚产业链的企业的影响更为显著。值得注意的是，成本节约和创新激励都有贡献，尽管它们的相对重要性因企业特征而异。这些发现证明了国际货运铁路提高生产率的作用，并突出了其对减少区域和制度差异的贡献。该研究为“一带一路”倡议的微观经济效益提供了新的实证证据，为政策制定者提供了基础设施项目如何促进包容性和创新驱动型增长的见解。

{"title":"The impact of Qilu strategy on boosting economic growth in China’s Belt and Road Initiative: an empirical study","authors":"Fang Hui , Tufail Hussain , Kun Li","doi":"10.1016/j.trip.2025.101817","DOIUrl":"10.1016/j.trip.2025.101817","url":null,"abstract":"<div><div>This study examines the impact of the Qilu freight train on firm-level productivity within the context of China’s Belt and Road Initiative. While prior research has highlighted the role of infrastructure in facilitating trade and regional development, limited evidence exists on how such projects influence micro-level productivity and whether effects differ across firm types. To address this gap, this paper investigates whether and how the Qilu train enhances firm productivity, through which mechanisms, and under what conditions. Using panel data of Chinese listed firms from 2013 to 2019 and employing a difference-in-differences approach, the study first establishes the baseline impact of Qilu connectivity on total factor productivity. Mechanism analysis then identifies cost reduction and innovation as the main transmission channels, while heterogeneity tests assess differences across firm ownership, innovation intensity, cost structures, regions, and industrial linkages. The results reveal that the Qilu train significantly improves firm productivity, with more potent effects observed in inland firms, private enterprises, high-cost producers, and firms integrated into Northeast Asian industrial chains. Notably, both cost savings and innovation incentives contribute, though their relative importance varies across firm characteristics. These findings demonstrate the productivity-enhancing role of international freight rail and highlight its contribution to reducing regional and institutional disparities. The study provides new empirical evidence on the microeconomic benefits of the Belt and Road Initiative, offering insights for policymakers on how infrastructure projects can foster inclusive and innovation-driven growth.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"36 ","pages":"Article 101817"},"PeriodicalIF":3.8,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897917","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}

引用次数: 0

Trip chain characteristics and situational factors influencing private car mode choices – A survey study in two Finnish urban areas 出行链特征和影响私家车模式选择的情境因素——芬兰两个城市地区的调查研究

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-06 DOI: 10.1016/j.trip.2025.101821

Eetu Wallius , Kirsikka Kaipainen , Olli Pihlajamaa

Human mobility is often characterized by trip chains with multiple destinations. However, the reasons behind mode choices have been mostly studied in single-purpose travel contexts. To address this gap, we examine how trip chain length, complexity (number of trip legs), and purposes are linked to situational factors influencing the decision to use a private car (i.e., context-dependent considerations that affect travel decisions, such as the need to save time, avoid bad weather, or be able to relax). Data was collected through a survey where participants described a recent private car trip chain, including items about trip purposes, the number of trips and trip legs, trip length, and the importance of various situational factors on mode choice decision. The survey was conducted in two major urban areas in Finland, yielding 731 valid responses. The results of a regression analysis show that all examined trip chain characteristics impact on the prevalence of different situational factors. Leisure being a trip purpose was associated with non-utilitarian factors influencing car use, and errands and commuting with both utilitarian and non-utilitarian factors. Trips involving errands appeared more habitual than trips for other purposes. Furthermore, complexity was not only associated with utilitarian factors, but also non-utilitarian. The findings suggest that trip chain complexity and purposes should be considered by practitioners and policymakers in sustainable mobility campaigns, passenger information systems that account for trip chain characteristics should be developed, and targeted interventions to reduce habitual car use, especially for errands, should be created.

人类的流动性通常以具有多个目的地的旅行链为特征。然而，模式选择背后的原因研究大多是在单一目的的旅行背景下进行的。为了解决这一差距，我们研究了旅行链的长度、复杂性（行程数）和目的是如何与影响使用私家车决策的情境因素联系起来的（即，影响旅行决策的情境依赖因素，如节省时间、避免恶劣天气或能够放松）。数据是通过一项调查收集的，参与者描述了最近的私家车旅行链，包括旅行目的、旅行次数和行程、旅行长度以及各种情境因素对模式选择决策的重要性。该调查在芬兰的两个主要城市地区进行，共收到731份有效答复。回归分析的结果表明，所有考察的出行链特征影响了不同的情境因素。休闲作为旅行目的与影响汽车使用的非功利因素有关，而差事和通勤则与功利和非功利因素有关。涉及跑腿的旅行似乎比其他目的的旅行更习惯。此外，复杂性不仅与功利因素有关，而且与非功利因素有关。研究结果表明，在可持续移动运动中，从业者和决策者应考虑出行链的复杂性和目的，应开发考虑出行链特征的乘客信息系统，并应创建有针对性的干预措施，以减少习惯性的汽车使用，特别是出差。

{"title":"Trip chain characteristics and situational factors influencing private car mode choices – A survey study in two Finnish urban areas","authors":"Eetu Wallius , Kirsikka Kaipainen , Olli Pihlajamaa","doi":"10.1016/j.trip.2025.101821","DOIUrl":"10.1016/j.trip.2025.101821","url":null,"abstract":"<div><div>Human mobility is often characterized by trip chains with multiple destinations. However, the reasons behind mode choices have been mostly studied in single-purpose travel contexts. To address this gap, we examine how trip chain length, complexity (number of trip legs), and purposes are linked to situational factors influencing the decision to use a private car (i.e., context-dependent considerations that affect travel decisions, such as the need to save time, avoid bad weather, or be able to relax). Data was collected through a survey where participants described a recent private car trip chain, including items about trip purposes, the number of trips and trip legs, trip length, and the importance of various situational factors on mode choice decision. The survey was conducted in two major urban areas in Finland, yielding 731 valid responses. The results of a regression analysis show that all examined trip chain characteristics impact on the prevalence of different situational factors. Leisure being a trip purpose was associated with non-utilitarian factors influencing car use, and errands and commuting with both utilitarian and non-utilitarian factors. Trips involving errands appeared more habitual than trips for other purposes. Furthermore, complexity was not only associated with utilitarian factors, but also non-utilitarian. The findings suggest that trip chain complexity and purposes should be considered by practitioners and policymakers in sustainable mobility campaigns, passenger information systems that account for trip chain characteristics should be developed, and targeted interventions to reduce habitual car use, especially for errands, should be created.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"36 ","pages":"Article 101821"},"PeriodicalIF":3.8,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897922","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}

引用次数: 0

Road travel satisfaction: role of quality, experience & intention 自驾游满意度：质量、体验和意向的作用

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-06 DOI: 10.1016/j.trip.2025.101826

Alireza Mahpour, Sahand Heshami, Amirhossein Baghestani, Amirreza Eftekhari

As a key component of global mobility, international road passenger transport facilitates movement of people across borders for reasons such as tourism, business, and social interaction. This study investigates the determinants of passenger satisfaction and behavioral intentions in the context of international road travel, using a structural equation modeling approach. In this case study, 6 latent constructs are examined using data from 571 passengers surveyed at four major border terminals in Iran: comfort, safety and security, supervision, terminal facilities, satisfaction, and behavior. Findings indicate that comfort and terminal facilities are the strongest predictors of satisfaction, while supervision significantly enhances perceived safety. Gender moderates these relationships, with female passengers placing greater emphasis on terminal facilities for comfort.

作为全球流动性的关键组成部分，国际公路客运便利了人们因旅游、商业和社会互动等原因跨境流动。本研究采用结构方程建模方法，探讨国际公路旅行中乘客满意度和行为意图的决定因素。在本案例研究中，使用在伊朗四个主要边境航站楼调查的571名乘客的数据，研究了6个潜在构式：舒适度、安全和安保、监管、航站楼设施、满意度和行为。研究结果表明，舒适度和终端设施是满意度的最强预测因子，而监管显著提高了感知安全性。性别调节了这些关系，女性乘客更重视航站楼设施的舒适度。

引用次数: 0

Examining the role of ridesourcing services during rain: A Chicago case study 考察雨中拼车服务的作用：以芝加哥为例

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-06 DOI: 10.1016/j.trip.2025.101812

Carlos Mateo Samudio Lezcano , Corey D. Harper , Destenie Nock , Jeremy J. Michalek

Transportation network companies (TNCs) are an established transportation mode. Yet, uncertainty remains on the level to which rain affects TNC ridership and how this relates to socioeconomic factors. Leveraging TNC trip and weather data from Chicago we estimate rain effects on ridership using non-parametric methods and use OLS regression to reveal their associations with underlying demographics. We find rain causes ridership fluctuations between −46 % and + 140 %, with highest percentage changes observed in the periphery of Chicago. Ridership tends to decrease in areas near the Chicago Transit Authority rail lines, suggesting a possible alleviating effect of transit. OLS regression reveals areas with higher population tend to experience higher changes in ridership during rain (p < 0.001), and the same is true in areas with higher shares of high-income households (p < 0.05). In addition, higher transit access (p < 0.001) and lower shares of households with no vehicles (p < 0.05) are associated with lower rain effects on ridership.

运输网络公司（TNCs）是一种成熟的运输模式。然而，降雨对跨国公司客流量的影响程度以及这与社会经济因素的关系仍不确定。利用来自芝加哥的跨国公司旅行和天气数据，我们使用非参数方法估计降雨对乘客的影响，并使用OLS回归来揭示其与潜在人口统计学的关联。我们发现，降雨导致的客流量波动在- 46%到+ 140%之间，芝加哥周边地区的变化幅度最大。在芝加哥交通管理局（Chicago Transit Authority）铁路线附近的地区，乘客人数往往会减少，这表明交通可能会起到缓解作用。OLS回归显示，人口较多的地区在降雨期间客流量变化较大（p < 0.001），高收入家庭比例较高的地区也是如此（p < 0.05）。此外，较高的交通通道（p < 0.001）和较低的无车家庭比例（p < 0.05）与较低的降雨对乘客的影响有关。

{"title":"Examining the role of ridesourcing services during rain: A Chicago case study","authors":"Carlos Mateo Samudio Lezcano , Corey D. Harper , Destenie Nock , Jeremy J. Michalek","doi":"10.1016/j.trip.2025.101812","DOIUrl":"10.1016/j.trip.2025.101812","url":null,"abstract":"<div><div>Transportation network companies (TNCs) are an established transportation mode. Yet, uncertainty remains on the level to which rain affects TNC ridership and how this relates to socioeconomic factors. Leveraging TNC trip and weather data from Chicago we estimate rain effects on ridership using non-parametric methods and use OLS regression to reveal their associations with underlying demographics. We find rain causes ridership fluctuations between −46 % and + 140 %, with highest percentage changes observed in the periphery of Chicago. Ridership tends to decrease in areas near the Chicago Transit Authority rail lines, suggesting a possible alleviating effect of transit. OLS regression reveals areas with higher population tend to experience higher changes in ridership during rain (p < 0.001), and the same is true in areas with higher shares of high-income households (p < 0.05). In addition, higher transit access (p < 0.001) and lower shares of households with no vehicles (p < 0.05) are associated with lower rain effects on ridership.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"36 ","pages":"Article 101812"},"PeriodicalIF":3.8,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897913","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}

引用次数: 0

Examining consumer innovativeness and environmental concern in electric vehicle adoption: Evidence from the Yangtze River Delta region of China 电动车消费者创新与环境考量：来自中国长三角地区的证据

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-06 DOI: 10.1016/j.trip.2025.101814

Hongbo Ma , Xiaoying Lou , Shurui Gu , Ibnu Siswanto , Andik Asmara

Electric vehicles (EVs) have become increasingly mainstream in China, yet the psychological drivers of adoption may evolve as markets progress. This study reexamines these drivers by incorporating consumer innovativeness and environmental concern into the Unified Theory of Acceptance and Use of Technology (UTAUT). Drawing on 616 valid survey responses from EV owners and test drivers in the Yangtze River Delta, we employed structural equation modeling with moderated mediation analysis to test the proposed hypotheses. The findings indicate that innovativeness exerts both direct (β = 0.33) and indirect effects on adoption intention through performance expectancy (β = 0.18) and facilitating conditions (β = 0.43). In contrast, the effect of environmental concern is entirely indirect. Gender functions as a significant contextual moderator in the innovativeness–adoption pathway, with the magnitude of indirect effects varying across gender groups. The model explains 61 % of the variance in adoption intention, offering a coherent account of the psychological mechanisms shaping EV adoption. These results underscore the need to strengthen technological value propositions and infrastructure support to sustain adoption momentum in an increasingly competitive EV market.

电动汽车（ev）在中国已日益成为主流，但随着市场的发展，采用电动汽车的心理驱动因素可能会发生变化。本研究通过将消费者创新和环境问题纳入技术接受和使用统一理论（UTAUT）来重新审视这些驱动因素。利用长三角地区电动汽车车主和试驾司机的616份有效问卷调查反馈，采用结构方程模型和有调节的中介分析对本文提出的假设进行检验。研究结果表明，创新能力通过绩效预期（β = 0.18）和促进条件（β = 0.43）对采用意愿产生直接影响（β = 0.33）和间接影响。相比之下，环境问题的影响完全是间接的。性别在创新-采用途径中起着重要的情境调节作用，其间接影响的程度在不同性别群体中有所不同。该模型解释了61%的采用意愿差异，为形成电动汽车采用的心理机制提供了连贯的解释。这些结果强调了加强技术价值主张和基础设施支持的必要性，以在竞争日益激烈的电动汽车市场中保持采用势头。

{"title":"Examining consumer innovativeness and environmental concern in electric vehicle adoption: Evidence from the Yangtze River Delta region of China","authors":"Hongbo Ma , Xiaoying Lou , Shurui Gu , Ibnu Siswanto , Andik Asmara","doi":"10.1016/j.trip.2025.101814","DOIUrl":"10.1016/j.trip.2025.101814","url":null,"abstract":"<div><div>Electric vehicles (EVs) have become increasingly mainstream in China, yet the psychological drivers of adoption may evolve as markets progress. This study reexamines these drivers by incorporating consumer innovativeness and environmental concern into the Unified Theory of Acceptance and Use of Technology (UTAUT). Drawing on 616 valid survey responses from EV owners and test drivers in the Yangtze River Delta, we employed structural equation modeling with moderated mediation analysis to test the proposed hypotheses. The findings indicate that innovativeness exerts both direct (β = 0.33) and indirect effects on adoption intention through performance expectancy (β = 0.18) and facilitating conditions (β = 0.43). In contrast, the effect of environmental concern is entirely indirect. Gender functions as a significant contextual moderator in the innovativeness–adoption pathway, with the magnitude of indirect effects varying across gender groups. The model explains 61 % of the variance in adoption intention, offering a coherent account of the psychological mechanisms shaping EV adoption. These results underscore the need to strengthen technological value propositions and infrastructure support to sustain adoption momentum in an increasingly competitive EV market.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"36 ","pages":"Article 101814"},"PeriodicalIF":3.8,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897910","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}

引用次数: 0

Adaptive resilience in freight: problem-solving strategies for the unexpected 货运的适应弹性：解决意外问题的策略

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-06 DOI: 10.1016/j.trip.2025.101746

Dora Morgado , Leandro F. Pereira , Álvaro L. Dias , José Crespo de Carvalho

This study examines how Portuguese freight transport managers address operational disruptions, including delays, vehicle breakdowns, and fluctuating demand. Through eighteen semi-structured interviews with certified managers, the research identifies key challenges and managerial responses. Common disruptions cited were scheduling delays (16 participants), breakdowns (13), and last-minute client requests (10). Managers predominantly relied on adaptive, experience-based strategies - such as real-time rerouting, maintaining backup vehicles, and proactive Client Relationship Management to manage expectations and maintain service quality. Five core problem-solving competencies emerged: adaptability (90%), crisis management (65%), client relationship management (60%), resilience (50%), and strategic planning (45%). While these strengths were notable, the study found limited application of collaborative problem-solving (CoPS) and minimal integration of sustainability practices. Managers cited high costs and insufficient policy support as primary barriers to adopting greener strategies. Technological use was largely limited to basic tools like GPS tracking and digital documentation. More advanced systems were underutilized due to financial and technical constraints. The research aims to (1) identify primary disruption types, (2) evaluate response strategies, (3) assess sustainability integration, and (4) examine the role of technology. This study extends the Dynamic Capabilities and Purchasing and Supply Management (PSM) competency frameworks by showing how managers in small/medium logistics firms rely on context-specific, improvisational approaches to manage disruptions. A new conceptual framework is proposed, linking disruption types, managerial competencies, and moderating factors such as limited resources and sustainability pressures. Policy recommendations include targeted training, digital upskilling, supportive incentives to promote resilience and sustainable innovation.

本研究考察了葡萄牙货运管理人员如何应对运营中断，包括延误、车辆故障和需求波动。通过对18位认证经理人的半结构化访谈，本研究确定了主要挑战和管理者的应对措施。常见的干扰包括计划延迟（16名参与者）、故障（13名）和最后一刻的客户请求（10名）。管理人员主要依靠自适应的、基于经验的策略——例如实时改道、维护备用车辆和主动的客户关系管理来管理期望和保持服务质量。五个核心问题解决能力出现了：适应性（90%）、危机管理（65%）、客户关系管理（60%）、弹性（50%）和战略规划（45%）。虽然这些优势是显著的，但研究发现协作解决问题（cop）的应用有限，可持续发展实践的整合也很少。管理人员指出，成本高和政策支持不足是采用绿色战略的主要障碍。技术的使用在很大程度上仅限于GPS跟踪和数字文档等基本工具。由于财政和技术限制，更先进的系统没有得到充分利用。本研究旨在(1)识别主要干扰类型，(2)评估应对策略，(3)评估可持续性整合，(4)检验技术的作用。本研究扩展了动态能力和采购与供应管理（PSM）能力框架，展示了中小型物流公司的管理人员如何依赖于特定环境的即兴方法来管理中断。提出了一个新的概念框架，将破坏类型、管理能力和有限资源和可持续性压力等调节因素联系起来。政策建议包括有针对性的培训、数字技能提升、支持性激励措施，以促进韧性和可持续创新。

{"title":"Adaptive resilience in freight: problem-solving strategies for the unexpected","authors":"Dora Morgado , Leandro F. Pereira , Álvaro L. Dias , José Crespo de Carvalho","doi":"10.1016/j.trip.2025.101746","DOIUrl":"10.1016/j.trip.2025.101746","url":null,"abstract":"<div><div>This study examines how Portuguese freight transport managers address operational disruptions, including delays, vehicle breakdowns, and fluctuating demand. Through eighteen semi-structured interviews with certified managers, the research identifies key challenges and managerial responses. Common disruptions cited were scheduling delays (16 participants), breakdowns (13), and last-minute client requests (10). Managers predominantly relied on adaptive, experience-based strategies - such as real-time rerouting, maintaining backup vehicles, and proactive Client Relationship Management to manage expectations and maintain service quality. Five core problem-solving competencies emerged: adaptability (90%), crisis management (65%), client relationship management (60%), resilience (50%), and strategic planning (45%). While these strengths were notable, the study found limited application of collaborative problem-solving (CoPS) and minimal integration of sustainability practices. Managers cited high costs and insufficient policy support as primary barriers to adopting greener strategies. Technological use was largely limited to basic tools like GPS tracking and digital documentation. More advanced systems were underutilized due to financial and technical constraints. The research aims to (1) identify primary disruption types, (2) evaluate response strategies, (3) assess sustainability integration, and (4) examine the role of technology. This study extends the Dynamic Capabilities and Purchasing and Supply Management (PSM) competency frameworks by showing how managers in small/medium logistics firms rely on context-specific, improvisational approaches to manage disruptions. A new conceptual framework is proposed, linking disruption types, managerial competencies, and moderating factors such as limited resources and sustainability pressures. Policy recommendations include targeted training, digital upskilling, supportive incentives to promote resilience and sustainable innovation.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"36 ","pages":"Article 101746"},"PeriodicalIF":3.8,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897916","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}

引用次数: 0

Travel training program among adults with disabilities: A systematic review 成人残疾旅行培训项目：系统回顾

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-06 DOI: 10.1016/j.trip.2025.101825

Claudel R. Mwaka , Krista L. Best , Nathan Chang , Martine Gagnon , François Routhier

Public transport is one of the most affordable forms of passive transport, supporting the life habits such as activities of daily living and social roles. Despite the potential benefits of public transit, adults with disabilities have restricted access to this mode of transportation due to factors such as limited knowledge of the transit system, travel skills and self-efficacy, for which travel training can be implemented. This systematic review examined the influence of travel training programs on knowledge, self-efficacy, travel skills and public transportation use among adults with disabilities and described their respective components. The search was carried out in Transport Database, MEDLINE, PsycINFO, Embase and Web of science from January 1990 to December 2023 (update performed 09/2024). Covidence software was used for article selection and data extraction, performed independently by two reviewers. The Template for Intervention Description and Replication (Tidier) and Mixed Methods Appraisal Tool (MMAT) were respectively used to extract intervention details and to assess methodological quality. We used the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines to report results. Of 5,104 citations retrieved, 12 were included in this review. Regardless the component used (combined didactic and practical, single hands-on approach, and assistive technologies with/without simulation), all included studies reported improvements in outcomes (e.g., knowledge, travel skills, self-efficacy, frequency of the public transport use) after travel training interventions. Although findings suggest travel training is promising, only one study demonstrated causal effect in randomized controlled trial. Therefore, findings should be interpreted with caution.

公共交通是最经济实惠的被动交通方式之一，支持日常生活活动和社会角色等生活习惯。尽管公共交通有潜在的好处，但由于对交通系统、旅行技能和自我效能等方面的知识有限，残疾成年人使用这种交通方式的机会有限，因此可以实施旅行培训。本研究考察了旅行培训项目对成年残疾人知识、自我效能感、旅行技能和公共交通使用的影响，并描述了它们各自的组成部分。检索时间为1990年1月至2023年12月（更新时间为2024年9月），检索数据库为Transport Database、MEDLINE、PsycINFO、Embase和Web of science。采用covid软件进行文章选择和数据提取，由两名审稿人独立完成。分别使用干预描述和复制模板（Tidier）和混合方法评估工具（MMAT）提取干预细节并评估方法质量。我们使用系统评价和荟萃分析（PRISMA）指南的首选报告项目来报告结果。在检索到的5104篇引文中，有12篇被纳入本综述。无论使用何种组成部分（教学与实践相结合，单次实践方法，以及有/没有模拟的辅助技术），所有纳入的研究都报告了在旅行培训干预后结果（例如，知识，旅行技能，自我效能感，公共交通使用频率）的改善。虽然研究结果表明旅行训练是有希望的，但只有一项研究在随机对照试验中证明了因果关系。因此，研究结果应谨慎解读。

{"title":"Travel training program among adults with disabilities: A systematic review","authors":"Claudel R. Mwaka , Krista L. Best , Nathan Chang , Martine Gagnon , François Routhier","doi":"10.1016/j.trip.2025.101825","DOIUrl":"10.1016/j.trip.2025.101825","url":null,"abstract":"<div><div>Public transport is one of the most affordable forms of passive transport, supporting the life habits such as activities of daily living and social roles. Despite the potential benefits of public transit, adults with disabilities have restricted access to this mode of transportation due to factors such as limited knowledge of the transit system, travel skills and self-efficacy, for which travel training can be implemented. This systematic review examined the influence of travel training programs on knowledge, self-efficacy, travel skills and public transportation use among adults with disabilities and described their respective components. The search was carried out in Transport Database, MEDLINE, PsycINFO, Embase and Web of science from January 1990 to December 2023 (update performed 09/2024). Covidence software was used for article selection and data extraction, performed independently by two reviewers. The Template for Intervention Description and Replication (Tidier) and Mixed Methods Appraisal Tool (MMAT) were respectively used to extract intervention details and to assess methodological quality. We used the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) guidelines to report results. Of 5,104 citations retrieved, 12 were included in this review. Regardless the component used (combined didactic and practical, single hands-on approach, and assistive technologies with/without simulation), all included studies reported improvements in outcomes (e.g., knowledge, travel skills, self-efficacy, frequency of the public transport use) after travel training interventions. Although findings suggest travel training is promising, only one study demonstrated causal effect in randomized controlled trial. Therefore, findings should be interpreted with caution.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"36 ","pages":"Article 101825"},"PeriodicalIF":3.8,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897886","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}

引用次数: 0

Artificial intelligence and its impact on the current and future transport workforce: policies and research to bridge the gaps and foster cooperation versus competition between countries 人工智能及其对当前和未来交通劳动力的影响：缩小差距和促进国家间合作与竞争的政策和研究

IF 3.8 Q2 TRANSPORTATION

Transportation Research Interdisciplinary Perspectives

Pub Date : 2026-01-06 DOI: 10.1016/j.trip.2025.101802

Cristina Pronello

Artificial Intelligence (AI) is widely recognised as the revolution of this era; however, its adoption is uneven across industries and countries, with a wide gap between Europe and non-EU countries.

The paper analyses the state of AI adoption, focusing on transport workforce, and aims at proposing common actions, research, and policies to create cooperation rather than competition.

To this end, a literature review was conducted, followed by two field surveys on the needs and actions of stakeholders and students to manage the transition to increasing digitalisation and automation accelerated by AI. The field surveys involved focus groups, interviews and archaeological ethnography and were based on a worldwide selection of stakeholders from different transport sectors, and a sample of undergraduate, master’s, and PhD students. Textual analysis was used for data analysis.

Over 900 stakeholders from 45 countries, including all levels of workforce, and nearly 600 students were involved. Needs, issues and concrete actions emerged, proposing specific measures to reduce the risks generated by AI. The main recommendations refer to: a) labour market regulation that requires broader inclusion of social dialogue; b) integration of the educational approach at different school and work levels, to prepare people to think independently and be creative in order to prevent shocks in adapting to AI evolution, fostering collaboration instead of competition. Field experiments are proposed to test policies, making the transition to AI use effective. The EU-US comparison in light of the proposed policies highlights the barriers created by different economic contexts, values and market regulations.

人工智能（AI）被广泛认为是这个时代的革命；然而，不同行业和国家对它的采用是不平衡的，欧洲和非欧盟国家之间的差距很大。本文分析了人工智能应用的现状，重点关注交通劳动力，旨在提出共同的行动、研究和政策，以创造合作而不是竞争。为此，我们进行了文献综述，随后进行了两次实地调查，调查利益相关者和学生的需求和行动，以管理人工智能加速向日益数字化和自动化的过渡。实地调查涉及焦点小组、访谈和考古人种学，并以来自世界各地不同运输部门的利益相关者为基础，并以本科生、硕士和博士生为样本。数据分析采用文本分析。来自45个国家的900多名利益相关者，包括各级劳动力，以及近600名学生参与其中。需求、问题和具体行动出现了，提出了减少人工智能带来的风险的具体措施。主要建议包括：a)劳动力市场监管需要更广泛地纳入社会对话；b)整合不同学校和工作层面的教育方法，使人们做好独立思考和创造性的准备，以防止在适应人工智能进化时受到冲击，促进合作而不是竞争。提出了实地试验来测试政策，使向人工智能使用的过渡有效。根据拟议的政策对欧盟和美国进行比较，突显出不同的经济背景、价值观和市场监管造成的障碍。

{"title":"Artificial intelligence and its impact on the current and future transport workforce: policies and research to bridge the gaps and foster cooperation versus competition between countries","authors":"Cristina Pronello","doi":"10.1016/j.trip.2025.101802","DOIUrl":"10.1016/j.trip.2025.101802","url":null,"abstract":"<div><div>Artificial Intelligence (AI) is widely recognised as the revolution of this era; however, its adoption is uneven across industries and countries, with a wide gap between Europe and non-EU countries.</div><div>The paper analyses the state of AI adoption, focusing on transport workforce, and aims at proposing common actions, research, and policies to create cooperation rather than competition.</div><div>To this end, a literature review was conducted, followed by two field surveys on the needs and actions of stakeholders and students to manage the transition to increasing digitalisation and automation accelerated by AI. The field surveys involved focus groups, interviews and archaeological ethnography and were based on a worldwide selection of stakeholders from different transport sectors, and a sample of undergraduate, master’s, and PhD students. Textual analysis was used for data analysis.</div><div>Over 900 stakeholders from 45 countries, including all levels of workforce, and nearly 600 students were involved. Needs, issues and concrete actions emerged, proposing specific measures to reduce the risks generated by AI. The main recommendations refer to: a) labour market regulation that requires broader inclusion of social dialogue; b) integration of the educational approach at different school and work levels, to prepare people to think independently and be creative in order to prevent shocks in adapting to AI evolution, fostering collaboration instead of competition. Field experiments are proposed to test policies, making the transition to AI use effective. The EU-US comparison in light of the proposed policies highlights the barriers created by different economic contexts, values and market regulations.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"36 ","pages":"Article 101802"},"PeriodicalIF":3.8,"publicationDate":"2026-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145897912","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}

引用次数: 0