Transportation Research Interdisciplinary Perspectives最新文献

{"title":"How will women use automated vehicles? Exploring the role of automated vehicles from women’s perspective","authors":"Soyeon Kim ,&nbsp;Shabila Anjani ,&nbsp;Dea van Lierop","doi":"10.1016/j.trip.2024.101228","DOIUrl":"10.1016/j.trip.2024.101228","url":null,"abstract":"<div><div>The emergence of automated vehicles promises a revolution in urban mobility. To benefit from a new mobility system, women who have specific mobility considerations necessitate inclusion in designing automated vehicles. This study explores women’s perspectives and the potential impact of automated vehicles through focus group discussions and in-depth interviews. Results demonstrate concerns among women about safety in current mobility systems, vulnerabilities regarding personal safety, and stereotypes about female drivers. Additionally, mothers face additional challenges managing items for children and their demands during travel, and senior women consider safety issues and declining capabilities when contemplating driving cessation. Current experience with mobility is reflected in concerns and visions regarding automated vehicles. The absence of a driver is expressed as improved safety in driverless taxis, while it is perceived as a safety concern in automated public transportation. Mothers with children anticipate convenience in travel, whereas senior women expect enhanced mobility and social participation. These findings underscore the importance of safety in women’s mobility experiences and provide insights into addressing safety and interaction issues in the design of automated vehicles. Researchers, transportation authorities, and vehicle manufacturers can leverage these results to understand women’s needs better and consider them in future designs and policy developments for automated vehicles. Prioritising women’s perspectives in automated vehicle research is essential to realising the innovative potential of this technology and fostering a more inclusive and accessible future in urban mobility.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101228"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142323667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Impact of 2024 solar eclipse on national traffic mobility using connected vehicle data and images","authors":"Rahul Suryakant Sakhare,&nbsp;Jairaj C. Desai,&nbsp;Jijo K. Mathew,&nbsp;Darcy M. Bullock","doi":"10.1016/j.trip.2024.101225","DOIUrl":"10.1016/j.trip.2024.101225","url":null,"abstract":"<div><div>The path of totality for the solar eclipse on April 8, 2024, passed through 13 states in the United States from Texas on the western end through Maine on the eastern end. This paper reports on the use of connected truck data to evaluate the impact of the solar eclipse on traffic mobility on Interstate routes in those thirteen states. Approximately 192 million connected truck data records from more than 240,000 trucks were systematically analyzed. Overall, eleven states (Arkansas, Illinois, Indiana, Kentucky, Maine, Missouri, New Hampshire, New York, Ohio, Pennsylvania and Vermont) were observed to have a total week over increase in the number of mile hours of Interstate operating below 45 mph by 66%. The other two states, Texas and Oklahoma were observed to have an actual reduction in week over congestion during the eclipse by 35%. Indiana had the highest increase in congestion on eclipse day by 856 mile-hours and significant mobility impacts were observed the day before and the day after the eclipse as well. This was likely due to the number of large viewing events distributed across the region of totality. A combination of roadside ITS cameras and on-vehicle dash camera images were used to qualitatively assess the prevailing roadway conditions and provide context. In addition to demand induced congestion in areas within or adjacent to totality, the dash cameras identified a variety of unstructured roadside parking adjacent to or within areas of totality.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101225"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590198224002112/pdfft?md5=54c61e4eb0195be770a65050ccc17953&pid=1-s2.0-S2590198224002112-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142310958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ride-Hailing vs. Fixed-Route: Preferences of the Transit-Dependent Populations in U.S. Urbanized Areas","authors":"Farokh Bagheri ,&nbsp;Ali Soltani ,&nbsp;Shima Hamidi ,&nbsp;Parviz Azizi","doi":"10.1016/j.trip.2024.101237","DOIUrl":"10.1016/j.trip.2024.101237","url":null,"abstract":"<div><div>Transportation inequality poses significant challenges in car-dependent cities in the US, especially for Transit-Dependent Populations (TDPs) who rely on public transportation to meet their travel requirements. Research indicates that despite the rapid growth of ride-hailing services like Uber, TDPs primarily depend on conventional transit options such as buses and metros. This study differentiates between two classifications of ride-hailing services: Private Ride-hailing (PRH), represented by platforms like Uber and Lyft, where individuals hire and pay for their rides, occasionally sharing the journey with guests; and ride-sharing (RS), like UberPool, which allows users to divide travel expenses. However, a more profound comprehension is necessary to clarify why TDPs show a preference for one mode of transportation over another and the factors that influence their decision-making. This study utilises Structural Equation Modelling (SEM) to examine the direct and indirect relationships between explanatory and outcome variables, while investigating modal preferences and usage frequency in 48 densely populated urban areas in the US (N = 384). TDPs choose to use transportation services like Uber because of their effectiveness in reducing both travel and waiting time, in contrast to traditional Fixed-Route Transit Services (FRTS), which are relatively less efficient. TDPs’ inclination towards PRH leads to a greater dependence on ride-hailing services, whereas a preference for FRTS reduces this dependence. Significantly, the study demonstrates that TDPs’ modal preferences are not only influenced by their socioeconomic status or rational decision-making, but also by the complex interaction between these factors. These findings provide valuable information for policymakers who want to evaluate the sustainability of ride-hailing services for TDPs and effectively tackle transportation inequalities.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101237"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428182","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Views from the statehouse: Survey results from state legislative committee members","authors":"Andrew R. Waxman ,&nbsp;Gian-Claudia Sciara","doi":"10.1016/j.trip.2024.101245","DOIUrl":"10.1016/j.trip.2024.101245","url":null,"abstract":"<div><div>We ask how statehouse lawmakers in the U.S. understand the connection between the energy transition in transportation and state resources for transport infrastructure and services. We administered a national-level survey of state legislators serving on state transportation committees to gauge perceptions of these key policy gatekeepers about the pressing transportation issues in their state, the policies likely to be legislated, and the extent to which likely policies address important issues. The delegation of investment and funding decisions to state governments make state legislatures a critical conduit for U.S. transportation policy, and committee actors can crucially shape early stages of the agenda setting process. As the transportation sector moves increasingly toward low carbon energy sources, transportation revenues—traditionally derived from taxes on gasoline—are eroded. We explore what policies state legislators could or would adopt to ensure that states, cities, and metro regions have the resources for maintaining and renewing aging transportation infrastructure and to connect transportation funding policy with energy and climate concerns. What level of interest do committee members have in pursuing such policies, and how do they weigh transportation decarbonization alongside competing objectives including environmental protection, economic development, and social equity, and against the perceived priorities of other actors in their orbit, including the committee on which they serve, the legislature as a whole, and constituents in their own district? Our survey results document the relative deprioritization of climate change and decarbonization as policy priorities, which stands in contrast to the relative urgency of these issues for federal and local transportation policymakers. Instead, we find legislators prioritize more short-term, practical issues, like needs to maintain infrastructure, tend to safety, and promote economic growth, as well to provide stable funding for these needs. Lawmakers see policy solutions centered on raising revenue, e.g. electric vehicle registration fees, as most viable. Legislators also believe, we find, that more abstract issues like climate change and decarbonization are of greater importance to themselves than to their constituents. This work informs public policy by collecting new and original data about lawmakers’ knowledge of and opinions about available legislative opportunities to facilitate the energy transition in transportation.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101245"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142428184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"30 Days with less cars: The effect of a month-long car-free campaign in Flanders, Belgium","authors":"Charlotte van Vessem,&nbsp;Cathy Macharis,&nbsp;Imre Keseru,&nbsp;Koen Mommens","doi":"10.1016/j.trip.2024.101227","DOIUrl":"10.1016/j.trip.2024.101227","url":null,"abstract":"<div><div>Despite its high population density and public transport connections, cars make out 65 % of the modal share in Flanders, Belgium. Flemish car use is still increasing, despite the necessity to decrease car use for reasons linked to the environment, health, and infrastructural problems. Due to historical auto-centric policymaking, car dependency -both physically and mentally- has become ingrained in mobility behavior. To experiment with how car dependency can be diminished, the campaign ‘30 Dagen Minder Wagen’ (30 Days with Less Cars) was launched, which challenged Flemish people to not use their cars as much as possible during July 2022. 6500 people participated, with a resulting CO² emission decrease equal to the annual emissions of 64 cars. This was the first large-scale academic campaign oriented on mobility behavioral change in the region.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101227"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590198224002136/pdfft?md5=89a85a0f0ff0e7716025ce9d606376aa&pid=1-s2.0-S2590198224002136-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142310960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessing the impact of driver compliance on traffic flow and safety in work zones amid varied mixed autonomy scenarios","authors":"Ehsan Kazemi,&nbsp;Iman Soltani","doi":"10.1016/j.trip.2024.101213","DOIUrl":"10.1016/j.trip.2024.101213","url":null,"abstract":"<div><p>The safety of work zones is a critical issue for drivers, transportation agencies, and governing authorities. In particular, the vehicles that perform lane changes in the proximity of the work zones involving lane closure, pose a significant threat to the safety of the public and the work zone workers, as they need to complete a forced merging. Yet, there is no comprehensive simulation framework to examine the work zone traffic safety under different compliance distributions of the drivers to the warning delivery for the work zone in a mix-autonomy operation of autonomous and human-driven vehicles. To fill this void, we present an integrated microsimulation framework to assess the correlation between the number of vehicles that perform late merge at the taper (LMT) and traffic mobility and safety under different empirical compliance distributions of the drivers to the warning delivery for the downstream work zone.</p><p>We employ different work zone configurations to illustrate the relationship between late merges at the taper and performance indicators for traffic mobility and safety of the work zone under a variety of work zone configurations. Simulation results show that compliance distribution significantly impacts the number of late merges at the taper (LMTs) and thereby traffic safety and efficiency. Our findings demonstrate that when human-driven vehicles exhibit high compliance behavior to the merging warning signs, it can offset the impact of the lower percentage of market penetration rate (MPR) levels for autonomous operation to achieve comparable traffic safety and efficiency. We further employ the conflation of microsimulation observations and data-driven models to design a regression model to predict LMTs as an indicator for traffic conditions using the work zone configuration as input variables. In particular, we address the heterogeneity induced by the compliance distribution of drivers by sampling the data points from the distribution to capture the diversity in compliance behaviors of the drivers. Our findings can provide insights for practitioners and researchers regarding the optimal compliance distribution using the performance measurements demonstrated in this work.</p></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101213"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590198224001994/pdfft?md5=af501ddaed4f7bce0cf65f6473da71fa&pid=1-s2.0-S2590198224001994-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142098639","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identifying the contribution of communication and trust in aviation maintenance occurrences: A content analysis methodology","authors":"Anna V. Chatzi ,&nbsp;Kyriakos I. Kourousis","doi":"10.1016/j.trip.2024.101220","DOIUrl":"10.1016/j.trip.2024.101220","url":null,"abstract":"<div><p>As communication and trust are both linked with safety, this paper aims to investigate their contribution to aviation maintenance incidents and accidents. For this purpose, the content analysis method is used to investigate whether trust and communication factors were present in aviation maintenance occurrences. Content analysis is used as a qualitative and quantitative tool. For the data analysis, apart from direct investigation for keywords throughout the material for analysis (aviation accident/incident reports with maintenance involvement), a survey tool was also employed. The items of this survey tool (Communication and Trust Question Set) were used to filter the reports’ text to indirectly identify the two factors under examination (communication and trust). As a qualitative tool, the content analysis yielded results via mapping and narrative techniques. As a quantitative tool, results were obtained and reported with the help of descriptive statistics (counts, frequencies). The results indicated that elements of trust and communication are indirectly detectable in aviation maintenance occurrences. Both ineffective communication and lack of trust were identified as a key accident/incident causal condition. Interpersonal trust is recommended to be included in the implementation requirements of any communication system. The limitations associated with the difference in the structure and consistency of the examined material are also discussed.</p></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101220"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2590198224002069/pdfft?md5=9fb1b56354cc270f9222635e26a52103&pid=1-s2.0-S2590198224002069-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142228624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Total capacity and LOS estimation of innovative and conventional roundabouts through macroscopic fundamental diagrams","authors":"Marco Guerrieri","doi":"10.1016/j.trip.2024.101232","DOIUrl":"10.1016/j.trip.2024.101232","url":null,"abstract":"<div><div>Traffic congestion remains a significant problem, especially in urban areas. To avoid congestion phenomena, several measures can be adopted, including the construction of roundabouts and the control of the measures of effectiveness (MOEs) at intersections. This article compares different types of roundabouts by estimating the deterministic fundamental diagram (MFD) and using microscopic traffic simulations. The deduction of MFD for different roundabout types (single and double-lane, flower and turbo-roundabout) is based on reasonably simplified traffic and boundary conditions. MFDs are estimated through several OD traffic matrices, considering as outputs the values of the macroscopic traffic variable deduced in time intervals of 5 min and 1 h. The findings from this research, in terms of total capacity, travel times, and level of service (LOS) estimation, may be useful for traffic and highway engineers in many realistic applications to partially face congestion phenomena in urban areas. MFDs allow us to determine the best roundabout type based on the traffic demand and represent a parsimonious method for monitoring and controlling traditional and unconventional or smart roundabouts, even in the presence of connected and automated vehicles (CAVs).</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101232"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142320401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Literature review: Efficiency, environment and robotization in first and last mile logistics","authors":"Aleksandrs Kotlars,&nbsp;Valerijs Skribans","doi":"10.1016/j.trip.2024.101215","DOIUrl":"10.1016/j.trip.2024.101215","url":null,"abstract":"<div><p>Efficiency of first and last mile transportation is a vital task that significantly contributes competitiveness of entire supply chain. Conducting systematic literature review is a first step in identifying imperfections and areas in need of further investigation. There is need to perform a comprehensive review of first and last mile activities, also including sustainability and green logistics aspects, as well as integration of autonomous robots into first and last-mile logistics for enhancing delivery efficiency and reducing operational costs, since these topics are becoming crucial. The aim of this study is to identify contemporary thematic groups related to first and last mile logistics and identify major gaps that require further investigation. In result, a research design was developed with specific selection of literature list, based on correlation analysis. Mapping of literature metrics was conducted with the purpose to identify research gaps and emerging trends. Eventually, major thematic groups of literature were created, and interconnections between them were investigated, allowing to discover multi-disciplinarity of first and last mile logistics studies.</p></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101215"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S259019822400201X/pdfft?md5=c45a6af5c08a01b14439881bcc3bf0d0&pid=1-s2.0-S259019822400201X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142151183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The present and future of road Financing: Leveraging knowledge from the tolling industry to implement road-usage charge programs in the u.s","authors":"Jean Y. Ji ,&nbsp;Debapriya Chakraborty ,&nbsp;Alan Jenn","doi":"10.1016/j.trip.2024.101240","DOIUrl":"10.1016/j.trip.2024.101240","url":null,"abstract":"<div><div>Historically, transportation funding in the United States has been supported primarily by motor fuel taxes. In recent years, revenues from fuel taxes have been shrinking. In response to the revenue shortfalls, many states have launched pilots or full-scale programs of road-usage charge (RUC) as an alternative to motor fuel taxes for transportation funding. Some of the challenges facing RUC is the cost of implementation compared to traditional motor fuel taxes, operational complexities, and the equity concerns (Caltrans, 2017). To address these challenges, states are looking to leverage existing vehicle-level pricing programs, such as road tolling, to learn about synergies between RUC and tolling. In this paper, we conducted semi-structured interviews with experts from tolling programs across the U.S. to identify areas of overlap between tolling and RUC. We built upon the interview findings by conducting a multi-criteria decision analysis (MCDA) to evaluate how well the state-level RUC pilots and programs can integrate with tolling systems. Our results demonstrate that there are numerous mutual benefits of a RUC-tolling integration. Both the tolling industry and RUC implementations can benefit from the increased scale of operations and the spur of technical innovations, which would reduce administrative costs. RUC programs can also learn from the tolling industry to address data privacy and security issues. In terms of policy and program designs of RUC, it is essential to design RUC rates which are equitable by considering the financial burdens on low-income populations and ensuring access to the system for the unbanked and underbanked populations.</div></div>","PeriodicalId":36621,"journal":{"name":"Transportation Research Interdisciplinary Perspectives","volume":"27 ","pages":"Article 101240"},"PeriodicalIF":3.9,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142357080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}