Transportation Research Part D-transport and Environment最新文献

The accessibility of urban rail systems in residential areas significantly impacts residents’ overall life satisfaction. Although many studies have examined the overall impact of rail accessibility on life satisfaction in various developed countries, few have focused on spatial heterogeneity and travel ability between rail accessibility and life satisfaction in developing countries. This study uses data from a 2017 activity-travel survey in Shanghai to examine the relationship between rail accessibility and residents’ life satisfaction in central urban and suburban areas with different travel abilities. It finds that both residential location and travel ability influence the impact of rail accessibility on life satisfaction. There are differences in the thresholds for rail accessibility among residents with different residential locations and private car ownership. These findings suggest that rail transit is a powerful tool for promoting the well-being in developing countries, and proper planning of rail station siting and land use is needed.

This paper investigates decarbonization alternatives for the freight rail industry, considering economic, environmental, and operational aspects. The study compares battery-electric and hydrogen fuel cell locomotives, drop-in fuels including biofuels and e-fuels, and overhead catenary electrification through abatement cost analyses. Scenario analysis identifies the cost-effectiveness of each of the technologies at different stages of decarbonization in the US Class 1 freight railroad network. We show that though battery locomotives offer a lower-cost decarbonization option in the considered scenarios, green hydrogen fuel-powered locomotives become more attractive when battery charging delays are considered. We introduce the concept of the technology margin to cater for uncertainties in battery charging operations and hydrogen fuel production for cases where carbon taxes are imposed on railroad operations. The study provides valuable insights for policymakers and rail operators, contributing to sustainable freight rail operations.

Governments worldwide are considering banning the sale of internal combustion engine vehicles (ICEVs) to address environmental and public health issues. However, the environmental and health impacts of banning ICEV sales remain unclear. Here, we evaluated the effects of banning ICEV sales under various implementation timelines on PM_2.5 and NO_x emissions in Leeds, UK, and the associated premature deaths, using a novel ’Fleet-Emission-Health’ model. The results showed that the earlier ban on ICEV sales led to an almost 100% reduction in NO_x by 2040, whereas total PM_2.5 increased slightly due to more non-exhaust PM_2.5 emissions emitted from battery electric vehicles (BEVs). Moreover, banning ICEV sales in 2030 would avoid 28 deaths in Leeds in 2040 compared to those in 2022, due to the reduction of NO_x and PM_2.5 emissions from ICEV exhaust. The findings indicate that stricter regulations on non-exhaust emissions are necessary to mitigate environmental and public health effects.

This study examined the extent to which residential dissonance affected changes in travel satisfaction before and during the pandemic. We conducted a gender-specific analysis using data from 540 spouses in 270 households in Greater Nagoya, Japan. The results showed that for women, the negative dissonance of accessibility and neighborhood socialization may deteriorate commute satisfaction, while the negative dissonance of car alternatives may decrease non-commute satisfaction. For men, the positive dissonance of aesthetics decreased non-commute satisfaction. Moreover, men who decreased car use reported a decrease in commute satisfaction. Men who cycled less frequently experienced a decrease in non-commute satisfaction, while women who cycled more frequently reported an increase in non-commute satisfaction. The findings suggest the importance of gender in travel satisfaction and suggest that intervention strategies should be tailored to address the needs of specific population subgroups, such as working women in dual-earner households.

This study aims to investigate the public attention and attitude towards shared bikes (SBs) in China. More than 721,000 posts collected from Sina Weibo (one of the most popular social media platforms) from January 2017 to August 2023 have been analyzed utilizing an analytical framework comprising statistical and temporal analysis, sentiment analysis, and topic analysis methods. The results reveal a consistent upward trend in public interest since 2018, with high engagement from the media, education, and institutional sectors, and greater interest from women and younger Weibo users. Economically developed regions with supportive policies and flat terrain, such as Beijing, Guangdong, and Shanghai, exhibit a higher level of public attention. Sentiment analysis indicates an overall positive public attitude, primarily driven by discounted monthly passes, but there are negative sentiments arising from improper parking management practices. The results are expected to be helpful for improving the SB system and informing relevant policy-making.

The sustainability of modern supply chains is intricately linked to the efficiency of reusable transport items (RTI). This study addresses the challenge of ensuring the timely return of RTIs by customers, as the underutilisation of RTIs leads to increased environmental impacts. By introducing a data-driven penalty scheme designed to incentivise timely returns through customised penalties, the study offers an innovative, tailored approach for RTI behavioural operations management. Real-case results showcase the potential of the scheme to enhance return rates, reduce RTI stockpiling, improve customer relations and mitigate environmental degradation. Our findings reveal diverse impacts associated with the implementation of balanced penalties that align with customers’ heterogeneous penalty sensitivity and demand level variability, thereby enhancing the effectiveness of the penalty scheme. These insights also offer valuable guidance for practitioners and policymakers seeking to enhance management efficiency and promote environmental stewardship in RTI supply chain operations.

A rebuttal to “Reply to road markings and microplastics- a critical literature review” by Järlskog et al. is necessary because authors of the “Reply…” simultaneously agree with the major issues raised in the review and try to discredit it through presenting a different perspective; thus, clarifications of some key issues are due. In response to “binders derived from, e.g., modified rosin oils are still polymers” (“Reply…”, p. 3), to confirm our claim that such materials are not necessarily polymeric, we are providing a Gel Permeation Chromatography spectrum of an esterified rosin designed for the use as a binder in thermoplastic road markings. Hence, while the value of the “Reply…” is in highlighting differences in definitions, it is unfortunate that no new knowledge about microplastics originating from road markings was provided and none of the multiple research needs and uncertainties were clarified.

Catenary trucks (CT) are part of electric road systems (ERS) and allow charging while driving, i.e. dynamic charging. ERS can contribute to the decarbonization of heavy road transport, as direct electric concepts have the best climate balance compared to alternative technologies. Catenary systems are being tested in real operation in Germany.

In this paper, we analyze the perceived legitimacy and social acceptance of CT systems in German society. To answer the research question, we look at industry actors, the general population, and local residents of a field test and combine different qualitative methods in an innovative multi-method approach.

We find that both the legitimacy and the acceptance of the technology are poor in Germany, i.e., structural and behavioral factors need to be changed to accommodate the technology. While manufacturers were primarily concerned with efficiency and costs, local citizens were concerned with traffic impact and safety.

Short turning and interlining lines allow transit agency to circulate a small number of vehicles between high demanded segments and are efficient strategies for addressing the problem of vehicle underutilization in peak period. With the electrification of urban transit system, the application of these strategies is faced with new challenges due to the limited battery capacity and long charging time of battery electric buses. Without rigorous charging scheduling, the short turning and interlining strategies may not perform as intended. This study presents a comprehensive framework to deal with the joint problem of short turning and interlining line planning, frequency setting and charging scheduling. We formulate the problem as a mixed-integer nonlinear programming model and propose an exact solution approach. Numerical experiments have been carried out for the Beijing Third Ring bus network; the potential benefits of the strategy-based operation are demonstrated by compared with the optimized normal operation.