Transportation Research Interdisciplinary Perspectives最新文献

{"title":"Optimizing line spacing and width in grid road designs for shared space: An eye-tracking study of visual attention and safety","authors":"Wu Yunhui ,&nbsp;Yamamoto Sari","doi":"10.1016/j.trip.2025.101776","DOIUrl":"10.1016/j.trip.2025.101776","url":null,"abstract":"<div><div>Consistent and accurate visual attention to pedestrians is crucial for traffic safety. However, shared-space environments have raised concerns due to low vehicle yield rates, frequent near-miss incidents, limited awareness of pedestrian priority, and accessibility challenges for individuals with visual impairments. This study examines how line density (spatial arrangement and diagonal grid line count per unit area) affects drivers’ visual behavior in shared-space scenarios by introducing a novel metric, “refixation interval” (the time between consecutive fixations on pedestrians). It evaluates whether such designs can enhance drivers’ attention to pedestrians. Under three lane-width conditions (4.5, 6, and 9 m), we manipulated line density and linewidth, measuring drivers’ fixation counts on pedestrians, refixation intervals, total fixation time, and left–right fixation balance. Twenty participants (20–40 years) wore Tobii Pro Glasses 3 while randomly viewing 30 high-complexity road videos (35 s each). Each video presented 15 design conditions, shown twice per condition; all participants were exposed to all experimental conditions. We found that road designs with significantly superior gaze metrics had a road width-to-design spacing ratio of approximately 60 % and a linewidth-to-lane-width ratio of approximately 17 % (<em>p</em> &lt; 0.01). Optimal combinations shortened refixation intervals, increased fixation duration on pedestrians, and balanced left–right fixations, enhancing sustained attention. This proportional pattern remained consistent across roadways narrower than three lane widths. Therefore, this proportional relationship has broad practical application potential and can provide operational parameters for future shared-space design. This study bridges dynamic monitoring metrics with safety outcomes and advances road design theory.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"35 ","pages":"Article 101776"},"PeriodicalIF":3.8,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749489","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":"Electric mobility investment in developing countries: Emerging patterns from cross-country analysis","authors":"Wale Arowolo,&nbsp;Yannick Perez","doi":"10.1016/j.trip.2025.101764","DOIUrl":"10.1016/j.trip.2025.101764","url":null,"abstract":"<div><div>On paper, many developing countries have made pledges to decarbonise and reduce GHG emissions. Nevertheless, decarbonisation is barely happening in many of them. Among other reasons, transport electrification with electric mobility, which is pivotal in the decarbonisation strategy of many developing countries, is beset by investment challenges on the demand and supply sides. On the demand side, the lingering ‘where will the money come from’ challenge remains critical because governments are financially constrained. On the supply side, investors remain uncertain about which country to invest in for electric mobility. This paper contributes to the academic and policy debate from the transport and power sector coupling context. We apply our conceptual framework to analyse some developing countries with wholesale power markets and wholesale and retail power markets. Then, we conduct cross-country analysis of fifteen countries to assess the possibility of emerging patterns of electric mobility investment solutions in these countries. We argue that regional or continental patterns may be emerging among some countries. We found that Latin American countries (Chile, Colombia, Argentina) appear to follow a pattern of investment in public transport electrification with electric buses, although the countries are at different stages of development. Romania, Poland, and Türkiye appear to follow an investment pattern in private electric vehicles. We found a pattern with low-cost two and three-wheelers in Central American countries (Nicaragua, Guatemala, and El Salvador). We recommend policies on electric mobility investment issues in developing countries.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"35 ","pages":"Article 101764"},"PeriodicalIF":3.8,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749487","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":"Physiological energy demand modeling for cycling and network graphs","authors":"Aybala Cakir ,&nbsp;Alexander L. Gratzer ,&nbsp;Alexander Schirrer ,&nbsp;Manuela Canestrini ,&nbsp;Negar Alinaghi ,&nbsp;Ioannis Giannopoulos ,&nbsp;Robert Kölbl ,&nbsp;Martin Kozek","doi":"10.1016/j.trip.2025.101777","DOIUrl":"10.1016/j.trip.2025.101777","url":null,"abstract":"<div><div>While the health benefits of cycling are well established, its role as a primary mode of sustainable daily transport and how to promote it remains less explored. Route selection and energy expenditure of cyclists are influenced by factors such as network availability, terrain, traffic, and environmental conditions. We propose the physiological energy demand model for cycling (PEDMC) that links network conditions with human energy effort by considering real-world urban cycling conditions, including slope, wind, and stop-and-go traffic. The PEDMC is grounded in interpretable physical relations without the need for data-driven calibration. It enables detailed analysis of the physiological energy consumption of cycling and allows comparisons with traditional routing algorithms based on time or distance. Applied to a cycling network in Vienna, the PEDMC demonstrates that using physiological energy consumption as a path search criterion leads to significantly different route selection compared to distance- or time-based route planning approaches. Employing the PEDMC reduces cycling effort by up to 6 % in flat areas and up to 30 % in hilly terrain. By evaluating cycling routes based on physiological energy expenditure, the PEDMC not only supports energy-efficient mobility planning but also contributes to the development of health-supportive, inclusive, and accessible cycling infrastructure. As such, the proposed model offers a valuable tool for advancing active travel strategies and promoting sustainable and healthy urban transport systems. It supports designing clean, healthy, and inclusive urban mobility systems.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"35 ","pages":"Article 101777"},"PeriodicalIF":3.8,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749488","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":"Perception of transportation challenges and their influence on mode choice in a small US city: A generalized structural equation modeling approach","authors":"Anindya Kishore Debnath ,&nbsp;Suman Kumar Mitra","doi":"10.1016/j.trip.2025.101789","DOIUrl":"10.1016/j.trip.2025.101789","url":null,"abstract":"<div><div>This study profiles individuals encountering transportation challenges by analyzing factors influencing their perceptions and how they affect mode choice decisions in Fort Smith, Arkansas. Using primary travel survey data, we estimated a multinomial logit (MNL) within a Generalized Structural Equation Model (GSEM) that controls for residential self-selection and car ownership endogeneity. We find that individuals from low-income households are more likely to perceive transportation challenges, particularly due to a lack of a car and inadequate public transport. Higher household car ownership generally diminishes perceived challenges, except regarding limited bike lanes. Weekend or late-shift workers are more likely to own cars and less likely to rely on public or active transport, reflecting service shortfalls for non-standard schedules. Perceived limits in public transport, bike lanes, and sidewalks significantly reduce the likelihood of choosing non-car modes. Importantly, deficiencies in walking or cycling infrastructure also depress public transport use, indicating public and active transport mode complementarity via first and/or last-mile access. We find no strong evidence that residential self-selection drives mode choice here. These results offer practical guidance for policymakers and transportation planners addressing similar issues in small cities like Fort Smith.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"35 ","pages":"Article 101789"},"PeriodicalIF":3.8,"publicationDate":"2025-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749493","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":"Investigation of the Mechanical and Microstructural Properties of Black cotton soil Stabilized with Industrial wastes","authors":"N. Murali Mohan ,&nbsp;G. Sivanatha Reddy ,&nbsp;S. Jyothirmayee ,&nbsp;B.L. Niranjan Reddy ,&nbsp;N. Madhava Reddy ,&nbsp;Vempalle Rafi","doi":"10.1016/j.trip.2025.101756","DOIUrl":"10.1016/j.trip.2025.101756","url":null,"abstract":"<div><div>Black Cotton Soils (BC soils) are highly prone to swelling and shrinkage due to their high montmorillonite content, often causing damage to pavements, dams, reservoirs, and multi-storey buildings. This study aims to reduce the stresses these soils exert on flexible pavement structures. Considering the environmental impact of cement, the research investigates the use of Ground Granulated Blast Furnace Slag (GGBS), lime, and fly ash (FA)—both individually and in combination—to improve soil properties sustainably. Various mix ratios were tested to identify the most effective combinations. Mechanical characterization included Atterberg limits, maximum dry density (MDD), optimum moisture content (OMC), and unconfined compressive strength (UCS). Microstructural characterization was performed using X-ray diffraction (XRD) and scanning electron microscopy (SEM) to examine mineralogical changes and the formation of cementitious phases. Chemical characterization assessed pozzolanic and cementitious reactions induced by lime, FA, and GGBS, resulting in the formation of calcium silicate hydrates (C–S–H) and calcium aluminate hydrates (C–A–H). Results showed that lime–GGBS mixtures provided the highest UCS (6.72–9.56 MPa) and durability, while lime–FA combinations also improved UCS (3.05–6.74 MPa). Cement additions (3–10 %) achieved UCS of 0.8–6 MPa after 7 days. Durability was maintained up to 30 % FA and 20 % lime, with higher proportions reducing performance. Overall, the study concludes that combining lime, FA, and GGBS effectively stabilizes Black Cotton Soils, enhancing strength and durability to meet IRC:37–2012 standards for pavement base layers, while minimizing environmental impacts compared to conventional cement stabilization.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"35 ","pages":"Article 101756"},"PeriodicalIF":3.8,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145711884","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":"How well are national policies addressing transport poverty in Scotland?","authors":"Margaret J. Douglas ,&nbsp;Chris Patterson ,&nbsp;Andrew Pulford ,&nbsp;Paul Sloan ,&nbsp;Catherine Heeney ,&nbsp;Joanna Teuton ,&nbsp;Anna Gale ,&nbsp;Timo Clemens ,&nbsp;Adrian L. Davis","doi":"10.1016/j.trip.2025.101784","DOIUrl":"10.1016/j.trip.2025.101784","url":null,"abstract":"<div><div>Transport poverty can be caused by a lack of transport options that are available, reliable, affordable, accessible or safe. This study aimed to assess whether selected national transport policies were likely to achieve a population level impact on transport poverty in Scotland. We identified a long list of relevant policies from sources including the national transport strategy annual delivery plan. Transport Scotland officials prioritised 12 of these policies for review. Eight policies addressed affordability, three safety, and two accessibility, one of which addressed both accessibility and safety. We used available evidence, mainly from policy documentation and evaluations, to score whether these were: systematically applied; scaled up appropriately; resourced in the long term; and evidence based, to generate an overall assessment of likely population level impact. We scored eight policies as high population level impact, three medium and one low. The policies were all legislative or universally available for defined populations, with few barriers to uptake. We identified bus concessionary schemes as particularly important to improve affordability, but some low-income populations who could most benefit are not eligible. We assessed three legislative policies as likely to have a population impact on accessibility and/or safety. We conclude that addressing each dimension in isolation is not sufficient to reduce transport poverty. A broad transport poverty strategy addressing all dimensions of transport poverty should be developed to ensure everyone can access transport options to meet their needs.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"35 ","pages":"Article 101784"},"PeriodicalIF":3.8,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749486","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":"Unpacking solo driving: how contextual and psychological factors shape commuters’ intentions in the Paris region","authors":"Briac Nokplim Akouh ,&nbsp;Lucia Bosone ,&nbsp;Patricia Delhomme","doi":"10.1016/j.trip.2025.101766","DOIUrl":"10.1016/j.trip.2025.101766","url":null,"abstract":"<div><div>In the context of the climate crisis and increasing urban congestion, reducing solo driving for commuting is a key challenge for promoting sustainable urban mobility. This study examines the psychological and contextual factors determining the intention to reduce solo driving among Parisian commuters. Based on Extended Theory of Planned Behaviour (TPB), integrating factors from the Norm Activation Model (NAM) and the COM-B framework, we carried out a correlational study. Data were collected through an e-survey from a sample of 1356 individuals living in the Paris region who solo drive for commuting. The proposed extended model accounted for 55.6% of the variance of their intention to reduce their solo driving. Present findings highlight the substantial role of perceived opportunities in strengthening solo driving reduction intention, suggesting that reducing perceived barriers by improving public transport infrastructure, and promoting opportunities by lowering public transport costs and expanding remote work options can encourage individuals to reduce solo driving. This study offers insights for policymakers to design targeted interventions encouraging sustainable mobility for commuters in urban and suburban settings.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"35 ","pages":"Article 101766"},"PeriodicalIF":3.8,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749528","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":"Predicting the adjacency matrix to construct lane topology of signalised intersections with aerial imagery and deep learning","authors":"Hugo Nilsson,&nbsp;Rachid Oucheikh","doi":"10.1016/j.trip.2025.101779","DOIUrl":"10.1016/j.trip.2025.101779","url":null,"abstract":"<div><div>Access to detailed network data is often constrained by access-controlled datasets or by extensive manual labour. Using aerial imagery and a simplified OpenStreetMap road-level graph, a novel approach is proposed to extract lane-level road topology graphs at signalized intersections based on detection of common road objects, classification of lane attributes, and a simultaneous lane-to-lane connectivity classifier. The approach bridges the gap in methodologies focused on image segmentation or direct graph extraction. Based on individual intersection arms, we achieve an F1 score of 0.88 in predicting the number of approach lanes, 0.87 number of turn movements, and 0.63 in predicting the number of lane types using seven lane type classes. Although key topology aspects are predicted successfully, performance is comparable or inferior to a simpler rule-based model. The results demonstrate the viability of the approach, but confirming practical usefulness will require training and evaluation on a larger and more varied dataset across cities and intersection types.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"35 ","pages":"Article 101779"},"PeriodicalIF":3.8,"publicationDate":"2025-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145749529","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":"Bypassing the lack of available travel disaggregated data: A geo-spatial framework to simulate mode choice","authors":"Anabele Lindner ,&nbsp;Cira Souza Pitombo ,&nbsp;Samuel de França Marques","doi":"10.1016/j.trip.2025.101735","DOIUrl":"10.1016/j.trip.2025.101735","url":null,"abstract":"<div><div>Disaggregated data for travel demand are essential resources toward appropriate urban planning, especially regarding public transportation. However, especially in developing countries, access to such information is limited. The current paper addresses this issue by introducing an approach, comprising semivariogram deconvolution, Sequential Gaussian Simulation (SGS), and validation, using regular spatial scales. As input to the procedure, we propose to use information with high availability, such as census microdata. The hallmark of the devised method lies in inferring travel spatial variability of more disaggregated unit areas using synthetic data. The method proposes to calculate synthetic data using the socioeconomic census microdata and a calibrated regression model with travel demand data associated with Traffic Analysis Zones (TAZs) in São Paulo city. The resulting maps and statistical metrics corroborate the original data values associated with TAZs. This paper presents relevant contributions as the method enables: bypassing the lack of available travel disaggregated data; creating different scenarios to reproduce travel spatial behavior; and assessing the associated uncertainty.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"34 ","pages":"Article 101735"},"PeriodicalIF":3.8,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145519474","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":"Inflating system expectations prior to SAE level 3 automated vehicle use: effects on monitoring behavior, resumption of control, and attitudes toward driving automation","authors":"Dustin J. Souders ,&nbsp;Shubham Agrawal ,&nbsp;Irina Benedyk ,&nbsp;Yuntao Guo ,&nbsp;Yujie Li ,&nbsp;Srinivas Peeta","doi":"10.1016/j.trip.2025.101725","DOIUrl":"10.1016/j.trip.2025.101725","url":null,"abstract":"<div><h3>Introduction</h3><div>Increasing levels of vehicle automation bring new risks to drivers, particularly those who are using a new automated driving system (ADS). The overreliance on partially automated advanced driver assistance systems (SAE L2 ADAS) has led to crashes, a concern that might escalate with conditional ADS (SAE L3), which require timely driver intervention. This study examines the impact of how L3 ADS’ capabilities and limitations are communicated to users on their subjective attitudes toward ADS and their driving behavior and performance, particularly concerning safety.</div></div><div><h3>Method</h3><div>In a driving simulator study, participants received introductory videos about the role of drivers at different automation levels, the capabilities and limitations of L3 ADS, and its human–machine interface (HMI). Videos concluded with either “Highlighted Benefits” of higher automation levels, reflecting current marketing trends of ADAS and ADS, or an “Explicit Reminder” of driver responsibilities in L3 ADS usage. Participants then completed three driving simulator runs (repeated measures) during or after which visual monitoring behavior, take-over performance, and subjective attitudes (trust and acceptance) toward the ADS were gathered.</div></div><div><h3>Results</h3><div>Participants resumed control when receiving uncertainty alert from the ADS across both introductory information conditions, with minor differences in take-over performance and monitoring behavior. No significant differences were observed in road monitoring behavior, take-over performance, and subjective attitudes between conditions, except for subjective familiarity ratings, which decreased over runs for the Explicit Reminder group compared to the Highlighted Benefits group. Both conditions showed take-over performance improvements, particularly after practice.</div></div><div><h3>Conclusions</h3><div>Successful crash avoidance in both groups indicates that graded warnings and practice can effectively improve take-over performance. This similarity in outcomes suggests that introductory information about ADS may not significantly affect monitoring behavior and performance of ADS users. These results highlight the potential for such systems to mitigate ADS complacency and promote safer resumption of vehicle control during automation failures.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"34 ","pages":"Article 101725"},"PeriodicalIF":3.8,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145519542","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}