Transportation Research Part D-transport and Environment最新文献

英文中文

Will pickup-truck buyers go electric? 小货车买家会选择电动车吗？

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-17 DOI: 10.1016/j.trd.2025.105170

Connor R. Forsythe , Kenneth T. Gillingham , Jeremy J. Michalek , Kate S. Whitefoot

Pickup trucks comprise the last U.S. light-duty vehicle segment to produce modern electric vehicle offerings, and they face unique engineering, economic and consumer acceptance challenges. To estimate adoption potential under engineering and economic projections, we conduct a discrete choice experiment with 534 U.S. pickup-truck buyers. We find a large majority (74%) of pickup truck buyers belong to latent classes that prefer or are indifferent to electric trucks when they offer comparable price, operating cost, range, towing and payload capacity with fast-charge capabilities. However, 26% are strongly opposed under any plausible vehicle technology trajectory. Price and range are the vehicle attributes that pose the largest barriers to increased adoption for most pickup truck buyers today. If electric pickup trucks achieve National Academies’ 2030 cost and range projections and are as widely available as conventional pickup trucks, our simulations suggest the majority of new U.S. pickup truck choices could be electric.

皮卡是美国最后一个生产现代电动汽车的轻型汽车领域，它们面临着独特的工程、经济和消费者接受方面的挑战。为了估计工程和经济预测下的采用潜力，我们对534 U.S.进行了离散选择实验皮卡的买家。我们发现，绝大多数（74%）皮卡买家属于潜在阶层，当电动卡车的价格、运营成本、续航里程、牵引和有效载荷能力与快速充电能力相当时，他们更喜欢或对电动卡车漠不关心。然而，26%的人强烈反对在任何可行的车辆技术轨迹下。价格和续航里程是目前阻碍大多数皮卡购买者购买皮卡的最大障碍。如果电动皮卡达到美国国家科学院2030年的成本和续航里程预测，并像传统皮卡一样广泛使用，我们的模拟表明，美国大多数新皮卡都可能是电动的。

引用次数: 0

Electrification of a bus system in a hilly city considering gradient impacts 考虑坡度影响的丘陵城市公交系统电气化研究

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-16 DOI: 10.1016/j.trd.2026.105223

Zili Tian , Jiaxing Liu , Shiqi Wang , Xiong Yang , Zhenhan Peng , Anthony Chen , Chengxiang Zhuge

Electrifying a bus system in hilly cities is challenging, as the road gradient plays a significant role in vehicular energy consumption, influencing the configuration of bus fleet and the layout of charging facilities. In response, this study developed a data-driven large-scale simulation optimization model that explicitly considers the impact of road gradients, aiming to determine the optimal electric bus fleet and charging infrastructure deployment, with Hong Kong (a typical hilly city) as the study area. Results indicated that neglecting gradient characteristics would underestimate the system cost and life-cycle emissions. Meanwhile, when accounting for gradient impacts, the required number of charging stations and fleet size increased by 27% and 3%, respectively. Moreover, the spatial distribution of charging stations could be greatly influenced. Further scenario analysis indicated that charging speed and infrastructure costs are influential in shaping bus electrification strategies. The outcomes can be helpful for bus electrification in hilly cities.

在丘陵城市实现公交系统的电气化是一项挑战，因为道路坡度对车辆能耗有重要影响，影响着公交车队的配置和充电设施的布局。为此，本研究以典型丘陵城市香港为研究区域，建立了一个明确考虑道路坡度影响的数据驱动的大规模仿真优化模型，旨在确定最优的电动巴士车队和充电基础设施部署。结果表明，忽略梯度特性会低估系统成本和全生命周期排放。同时，考虑梯度影响后，充电站数量和车队规模分别增加了27%和3%。此外，充电站的空间分布也会受到很大的影响。进一步的情景分析表明，充电速度和基础设施成本对公共汽车电气化战略的形成具有重要影响。研究结果对丘陵城市公交车电气化有一定的借鉴意义。

{"title":"Electrification of a bus system in a hilly city considering gradient impacts","authors":"Zili Tian , Jiaxing Liu , Shiqi Wang , Xiong Yang , Zhenhan Peng , Anthony Chen , Chengxiang Zhuge","doi":"10.1016/j.trd.2026.105223","DOIUrl":"10.1016/j.trd.2026.105223","url":null,"abstract":"<div><div>Electrifying a bus system in hilly cities is challenging, as the road gradient plays a significant role in vehicular energy consumption, influencing the configuration of bus fleet and the layout of charging facilities. In response, this study developed a data-driven large-scale simulation optimization model that explicitly considers the impact of road gradients, aiming to determine the optimal electric bus fleet and charging infrastructure deployment, with Hong Kong (a typical hilly city) as the study area. Results indicated that neglecting gradient characteristics would underestimate the system cost and life-cycle emissions. Meanwhile, when accounting for gradient impacts, the required number of charging stations and fleet size increased by 27% and 3%, respectively. Moreover, the spatial distribution of charging stations could be greatly influenced. Further scenario analysis indicated that charging speed and infrastructure costs are influential in shaping bus electrification strategies. The outcomes can be helpful for bus electrification in hilly cities.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"153 ","pages":"Article 105223"},"PeriodicalIF":7.7,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979351","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Perceived accessibility across activity types and transport modes 感知跨活动类型和运输模式的可达性

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-16 DOI: 10.1016/j.trd.2026.105225

Willy Kriswardhana , Domokos Esztergár-Kiss

Recently, perceived accessibility has been proposed as a supplementary measure to traditional accessibility indicators to support more comprehensive policies for sustainable travel behavior. Previous studies explore perceived accessibility across trip purposes and conventional transport modes but overlook shared micro-mobility with such factors as walkability and bikeability. The current study addresses these gaps by examining how perceived walkability, bikeability, and access to shared transport modes influence perceived accessibility, which are closely related to the built environment. A web-panel survey is conducted, and the data are analyzed by using ordered logit models. The results highlight the influence of varied parameters, where socio-demographic factors significantly affect the perceived accessibility of public transport and cars, while mode-specific perceptions play a greater role in the case of active and shared mobility modes. The findings underline the importance of including and analyzing individuals’ perceptions of existing infrastructures to support a transition toward green travel behavior.

最近，可达性被提出作为传统可达性指标的补充措施，以支持更全面的可持续旅游行为政策。以往的研究探讨了出行目的和传统交通方式的感知可达性，但忽视了步行性和骑自行车性等共享微移动性因素。当前的研究通过研究感知步行性、骑自行车性和共享交通方式如何影响感知可达性来解决这些差距，这与建筑环境密切相关。通过网络面板调查，采用有序logit模型对数据进行分析。结果强调了各种参数的影响，其中社会人口因素显著影响公共交通和汽车的可达性，而特定模式的感知在主动和共享移动模式的情况下发挥更大的作用。研究结果强调了包括和分析个人对现有基础设施的看法对于支持向绿色出行行为过渡的重要性。

{"title":"Perceived accessibility across activity types and transport modes","authors":"Willy Kriswardhana , Domokos Esztergár-Kiss","doi":"10.1016/j.trd.2026.105225","DOIUrl":"10.1016/j.trd.2026.105225","url":null,"abstract":"<div><div>Recently, perceived accessibility has been proposed as a supplementary measure to traditional accessibility indicators to support more comprehensive policies for sustainable travel behavior. Previous studies explore perceived accessibility across trip purposes and conventional transport modes but overlook shared micro-mobility with such factors as walkability and bikeability. The current study addresses these gaps by examining how perceived walkability, bikeability, and access to shared transport modes influence perceived accessibility, which are closely related to the built environment. A web-panel survey is conducted, and the data are analyzed by using ordered logit models. The results highlight the influence of varied parameters, where socio-demographic factors significantly affect the perceived accessibility of public transport and cars, while mode-specific perceptions play a greater role in the case of active and shared mobility modes. The findings underline the importance of including and analyzing individuals’ perceptions of existing infrastructures to support a transition toward green travel behavior.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"153 ","pages":"Article 105225"},"PeriodicalIF":7.7,"publicationDate":"2026-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mobility scooters and older people’s mobility and accessibility: Evidence from Shanghai, China 机动滑板车与老年人的移动性和可达性：来自中国上海的证据

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-15 DOI: 10.1016/j.trd.2026.105224

Weikang Kong , Xiaolan Huang , Fenghong An , Mi Diao

As an informal mode of micro-mobility, mobility scooters have gained popularity among older people in China, offering enhanced mobility and independence. However, their high accident rates have attracted criticism and prompted bans in many cities. Using an extensive survey in Shanghai, China, this study investigates the role of mobility scooters in the mobility and accessibility of older people, by examining factors influencing ownership decisions, usage patterns, and modal shifts both after scooter adoption and under a hypothetical ban scenario. The findings reveal that mobility scooters serve as essential tools for overcoming mobility constraints, enabling faster travel over short-to-medium distances compared to bicycles and e-bikes, and significantly expanding the accessibility of older people. Strict bans risk reducing older people’ mobility, activity participation, and overall well-being, hence exacerbating transport inequity. A more balanced approach is essential for promoting efficiency and equity in urban transport systems.

作为一种非正式的微型交通方式，滑板车在中国老年人中很受欢迎，它提供了更强的机动性和独立性。然而，它们的高事故率招致了批评，并在许多城市引发了禁令。本研究在中国上海进行了一项广泛的调查，通过研究影响所有权决策、使用模式和模式转变的因素，研究了滑板车在老年人的移动性和可达性方面的作用，包括在滑板车采用后和假设禁止的情况下。研究结果表明，与自行车和电动自行车相比，电动滑板车是克服出行限制的重要工具，可以更快地完成中短途旅行，并显著扩大老年人的可及性。严格的禁令可能会降低老年人的流动性、活动参与度和整体福祉，从而加剧交通不平等。要促进城市运输系统的效率和公平，必须采取更加平衡的办法。

引用次数: 0

Institutional barriers to dynamic truck charging: why electric road systems struggle in Europe 动态卡车充电的制度障碍：为什么电动道路系统在欧洲举步维艰

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-15 DOI: 10.1016/j.trd.2025.105154

Aline Scherrer , Matthew Lockwood , Uta Burghard , Karoline S. Rogge

Electric road systems (ERS) have been proposed as an efficient solution to dynamically charge electric trucks but have not yet become a dominant solution. This paper provides an institutional explanation for the case of Europe, building on 22 expert interviews in eight European countries, event observations, and policy documents. The analysis identifies three main explanations. Firstly, as a line infrastructure, ERS require government commitment for build-up and coordination, particularly across borders. This conflicts with the widespread idea of technology-open governments that provide R&D funds to initiate market-driven solutions. Secondly, time constraints favour readily available solutions backed by industry, like stationary charging, over sector-specific ERS technologies that lack a unified lobby with policy access. Thirdly, ERS technologies challenge long-standing sectoral designs. If policymakers want to maintain the option of ERS alongside stationary charging, they need to acknowledge this institutional uphill battle and consider compatibility requirements for vehicles and an active commitment for larger routes.

电动道路系统（ERS）作为电动卡车动态充电的有效解决方案已被提出，但尚未成为主导解决方案。本文基于对8个欧洲国家的22位专家访谈、事件观察和政策文件，对欧洲的情况进行了制度性解释。分析指出了三种主要解释。首先，作为线路基础设施，ERS需要政府承诺进行建设和协调，特别是跨境建设和协调。这与技术开放政府提供研发资金以启动市场驱动解决方案的普遍观点相冲突。其次，时间限制更倾向于由行业支持的现成解决方案，如固定收费，而不是缺乏统一游说和政策准入的特定行业的ERS技术。第三，ERS技术挑战了长期存在的部门设计。如果政策制定者想在固定充电的同时保留ERS的选择，他们需要承认这是一场制度性的艰苦战斗，并考虑车辆的兼容性要求和对更大路线的积极承诺。

{"title":"Institutional barriers to dynamic truck charging: why electric road systems struggle in Europe","authors":"Aline Scherrer , Matthew Lockwood , Uta Burghard , Karoline S. Rogge","doi":"10.1016/j.trd.2025.105154","DOIUrl":"10.1016/j.trd.2025.105154","url":null,"abstract":"<div><div>Electric road systems (ERS) have been proposed as an efficient solution to dynamically charge electric trucks but have not yet become a dominant solution. This paper provides an institutional explanation for the case of Europe, building on 22 expert interviews in eight European countries, event observations, and policy documents. The analysis identifies three main explanations. Firstly, as a line infrastructure, ERS require government commitment for build-up and coordination, particularly across borders. This conflicts with the widespread idea of technology-open governments that provide R&D funds to initiate market-driven solutions. Secondly, time constraints favour readily available solutions backed by industry, like stationary charging, over sector-specific ERS technologies that lack a unified lobby with policy access. Thirdly, ERS technologies challenge long-standing sectoral designs. If policymakers want to maintain the option of ERS alongside stationary charging, they need to acknowledge this institutional uphill battle and consider compatibility requirements for vehicles and an active commitment for larger routes.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"153 ","pages":"Article 105154"},"PeriodicalIF":7.7,"publicationDate":"2026-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Optimizing evacuation routes for human mobility during wildfires: A case study of the 2023 McDougall Creek Wildfire 野火期间优化人员疏散路线：以2023年麦克杜格尔河野火为例

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-14 DOI: 10.1016/j.trd.2026.105216

Bahareh Raei , Apratim Sen , Max Kinateder , Noureddine Bénichou , Xin Wang

Wildfires present significant challenges to evacuation planning due to their dynamic nature, rapid spread, and the limitations of static routing methods, which often lead to congestion and increased safety risks. This study addresses these issues by analyzing the 2023 McDougall Creek Wildfire (Kelowna, BC) using GPS data, identifying congestion bottlenecks, and developing a dynamic Dijkstra-A* algorithm with a multi-criteria cost function that integrates distance, congestion, and fire risk. Validated through SUMO simulations across two scenario groups with fire origins in the northwest and southwest, we tested four evacuation strategies: simultaneous departure, temporally staggered departure, region-based evacuation with uniform response times, and region-based evacuation with realistic response time variability. Our results demonstrate that region-based, staggered evacuations with realistic response times effectively reduce peak congestion and improve safety compared to simultaneous approaches. This research highlights the potential of GPS-informed behavior and hazard-aware routing to improve adaptive evacuation strategies for climate-driven wildfire events.

由于野火的动态性、快速蔓延和静态路径方法的局限性，往往导致拥堵和安全风险增加，给疏散规划带来了重大挑战。本研究通过使用GPS数据分析2023年McDougall Creek野火（Kelowna， BC），识别拥堵瓶颈，并开发了一种动态Dijkstra-A*算法，该算法具有集成距离、拥堵和火灾风险的多标准成本函数。通过在西北和西南两个场景组中进行SUMO模拟验证，我们测试了四种疏散策略：同时离开，暂时交错离开，统一响应时间的基于区域的疏散，以及具有现实响应时间变化的基于区域的疏散。我们的研究结果表明，与同时进行的方法相比，基于区域的、具有现实响应时间的错开疏散有效地减少了高峰拥堵，提高了安全性。这项研究强调了gps信息行为和危险意识路径在改善气候驱动的野火事件适应性疏散策略方面的潜力。

{"title":"Optimizing evacuation routes for human mobility during wildfires: A case study of the 2023 McDougall Creek Wildfire","authors":"Bahareh Raei , Apratim Sen , Max Kinateder , Noureddine Bénichou , Xin Wang","doi":"10.1016/j.trd.2026.105216","DOIUrl":"10.1016/j.trd.2026.105216","url":null,"abstract":"<div><div>Wildfires present significant challenges to evacuation planning due to their dynamic nature, rapid spread, and the limitations of static routing methods, which often lead to congestion and increased safety risks. This study addresses these issues by analyzing the 2023 McDougall Creek Wildfire (Kelowna, BC) using GPS data, identifying congestion bottlenecks, and developing a dynamic Dijkstra-A* algorithm with a multi-criteria cost function that integrates distance, congestion, and fire risk. Validated through SUMO simulations across two scenario groups with fire origins in the northwest and southwest, we tested four evacuation strategies: simultaneous departure, temporally staggered departure, region-based evacuation with uniform response times, and region-based evacuation with realistic response time variability. Our results demonstrate that region-based, staggered evacuations with realistic response times effectively reduce peak congestion and improve safety compared to simultaneous approaches. This research highlights the potential of GPS-informed behavior and hazard-aware routing to improve adaptive evacuation strategies for climate-driven wildfire events.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"153 ","pages":"Article 105216"},"PeriodicalIF":7.7,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi-scenario simulation of emission reduction and subsidy scheme for dangerous goods vehicles 危险品车辆减排及补贴计划的多情景模拟

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-14 DOI: 10.1016/j.trd.2026.105220

Jiansong Li , Guoqi Li , Jiahui Cao , Xiumei Lu

Using trajectory data of dangerous goods vehicles (DGVs) in Chengdu, this study develops a three-phase framework to characterize spatio-temporal patterns of pollutant emissions, evaluate emission reduction benefits, and optimize subsidy policies. Results show that DGVs’ emissions exhibit a bimodal distribution, peaking between 9:30 and 11:30. These emissions expose over 3.2 million residents to health risks, with middle-income groups being the most affected. They lead to approximately 114 premature deaths and $18.68 million in annual economic losses. A combined strategy of improving fuel quality and electrifying heavy-duty DGVs could reduce over 76% of PM_2.5 emissions annually, prevent 84–93 premature deaths, and save $13.76–15.23 million. To close the cost gap and achieve optimal emission reduction benefits, this study recommends raising the subsidy cap for heavy-duty DGVs from $13800 to at least $21100 to promote electrification of China III or lower emission standard DGVs. Concurrently, charging infrastructure deployment should be accelerated.

利用成都市危险品车辆运行轨迹数据，构建了一个三阶段框架，用于表征污染物排放时空格局、评估减排效益和优化补贴政策。结果表明：dgv排放呈双峰分布，在9:30 ~ 11:30达到峰值；这些排放使320多万居民面临健康风险，中等收入群体受影响最大。这些疾病导致大约114人过早死亡，每年造成1 868万美元的经济损失。提高燃料质量和重型dgv电气化的综合战略每年可减少76%以上的PM2.5排放量，防止84-93人过早死亡，节省1376 - 1523万美元。为了缩小成本差距并实现最佳减排效益，本研究建议将重型dgv的补贴上限从13800美元提高到至少21100美元，以促进中国III或更低排放标准dgv的电气化。同时，加快充电基础设施建设。

{"title":"Multi-scenario simulation of emission reduction and subsidy scheme for dangerous goods vehicles","authors":"Jiansong Li , Guoqi Li , Jiahui Cao , Xiumei Lu","doi":"10.1016/j.trd.2026.105220","DOIUrl":"10.1016/j.trd.2026.105220","url":null,"abstract":"<div><div>Using trajectory data of dangerous goods vehicles (DGVs) in Chengdu, this study develops a three-phase framework to characterize spatio-temporal patterns of pollutant emissions, evaluate emission reduction benefits, and optimize subsidy policies. Results show that DGVs’ emissions exhibit a bimodal distribution, peaking between 9:30 and 11:30. These emissions expose over 3.2 million residents to health risks, with middle-income groups being the most affected. They lead to approximately 114 premature deaths and $18.68 million in annual economic losses. A combined strategy of improving fuel quality and electrifying heavy-duty DGVs could reduce over 76% of PM<sub>2.5</sub> emissions annually, prevent 84–93 premature deaths, and save $13.76–15.23 million. To close the cost gap and achieve optimal emission reduction benefits, this study recommends raising the subsidy cap for heavy-duty DGVs from $13800 to at least $21100 to promote electrification of China III or lower emission standard DGVs. Concurrently, charging infrastructure deployment should be accelerated.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"153 ","pages":"Article 105220"},"PeriodicalIF":7.7,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145961768","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A transformer-enhanced causal analysis framework for inter-stop energy consumption of electric bus 基于变压器的电动客车停站能耗原因分析框架

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-14 DOI: 10.1016/j.trd.2026.105221

Yixu He , Zikang Huang , Jiahao Zhan , Lingshu Zhong , Mingyang Pei

Electric buses (EBs) are central to urban transport electrification, yet their energy consumption patterns remain inadequately characterized at operational scales. This study develops an integrated framework combining high-accuracy prediction with causal inference to analyze inter-stop segment energy consumption. We propose Transformer with C-Mixup and Self-Distillation (TCMSD), employing similarity-based sample mixing to address data sparsity and imbalance, while self-distillation enhances generalization. By embedding TCMSD within Double/debiased machine learning (DML) as base learners, we achieve superior causal effect estimation with reduced bias and variance. Applied to EB fleet operational data, the framework reveals non-linear heterogeneous treatment effects across 10 factors spanning driving behavior, operational characteristics, and weather conditions. Results demonstrate marked improvement in prediction performance. The factors exhibit different characteristics from long-distance trips from a causal perspective. This approach provides transit agencies with predictive tools and causal insights for data-driven energy management and environmental impact reduction.

电动公交车（EBs）是城市交通电气化的核心，但其能源消耗模式在运营规模上仍未充分表征。本研究建立了高精度预测与因果推理相结合的综合框架来分析停车间段能耗。我们提出了带有C-Mixup和自蒸馏（TCMSD）的Transformer，采用基于相似性的样本混合来解决数据稀疏性和不平衡问题，而自蒸馏则增强了泛化能力。通过在双/去偏机器学习（DML）中嵌入TCMSD作为基础学习器，我们在减少偏差和方差的情况下实现了卓越的因果效应估计。应用于EB车队运行数据，该框架揭示了跨越驾驶行为、操作特征和天气条件等10个因素的非线性异构处理效果。结果表明，预测性能显著提高。从因果关系的角度看，这些因素在长途旅行中表现出不同的特征。这种方法为交通运输机构提供了预测工具和因果洞察，用于数据驱动的能源管理和减少环境影响。

{"title":"A transformer-enhanced causal analysis framework for inter-stop energy consumption of electric bus","authors":"Yixu He , Zikang Huang , Jiahao Zhan , Lingshu Zhong , Mingyang Pei","doi":"10.1016/j.trd.2026.105221","DOIUrl":"10.1016/j.trd.2026.105221","url":null,"abstract":"<div><div>Electric buses (EBs) are central to urban transport electrification, yet their energy consumption patterns remain inadequately characterized at operational scales. This study develops an integrated framework combining high-accuracy prediction with causal inference to analyze inter-stop segment energy consumption. We propose Transformer with C-Mixup and Self-Distillation (TCMSD), employing similarity-based sample mixing to address data sparsity and imbalance, while self-distillation enhances generalization. By embedding TCMSD within Double/debiased machine learning (DML) as base learners, we achieve superior causal effect estimation with reduced bias and variance. Applied to EB fleet operational data, the framework reveals non-linear heterogeneous treatment effects across 10 factors spanning driving behavior, operational characteristics, and weather conditions. Results demonstrate marked improvement in prediction performance. The factors exhibit different characteristics from long-distance trips from a causal perspective. This approach provides transit agencies with predictive tools and causal insights for data-driven energy management and environmental impact reduction.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"153 ","pages":"Article 105221"},"PeriodicalIF":7.7,"publicationDate":"2026-01-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145979245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unveiling the spatial-temporal heterogeneity of high-speed railway’s impacts on multiple air pollutants 揭示高速铁路对多种大气污染物影响的时空异质性

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-12 DOI: 10.1016/j.trd.2026.105222

Yang Wang, Jin Li

High-speed railway (HSR) is a sustainable transportation infrastructure, yet its comprehensive impacts on air quality remain unclear. This study examines the effects of HSR on six key air pollutants (i.e., PM_2.5, PM₁₀, NO₂, O₃, SO_2, and CO) across 283 prefecture-level cities in China from 2008 to 2018. The results indicate that: (1) HSR has heterogeneous impacts on different pollutants. The marginal benefits for most pollutants strengthen over time, although the magnitude and direction of impacts vary considerably by pollutant type; (2) Further analysis identifies distinct pathways through which HSR affects air quality: particulate matter reduction occurs primarily through industrial transfer and upgrading, whereas NO₂ mitigation results from the substitution of road and air transport with rail services; (3) The relocation of pollution-intensive enterprises driven by HSR development may offset potential environmental gains in less developed regions. These findings offer crucial insights into the multifaceted environmental impacts of HSR.

高速铁路是一种可持续的交通基础设施，但其对空气质量的综合影响尚不清楚。本研究考察了2008年至2018年中国283个地级市高铁对六种主要空气污染物（即PM2.5、PM10、NO2、O3、SO2和CO）的影响。结果表明：(1)高铁对不同污染物的影响具有异质性。大多数污染物的边际效益随着时间的推移而增强，尽管影响的大小和方向因污染物类型而有很大差异；(2)进一步分析确定了高铁影响空气质量的不同途径：颗粒物的减少主要通过产业转移和升级实现，而二氧化氮的缓解则是通过铁路服务取代公路和航空运输实现的；(3)高铁带动的污染密集型企业搬迁，可以抵消欠发达地区潜在的环境收益。这些发现为高铁对环境的多方面影响提供了重要见解。

{"title":"Unveiling the spatial-temporal heterogeneity of high-speed railway’s impacts on multiple air pollutants","authors":"Yang Wang, Jin Li","doi":"10.1016/j.trd.2026.105222","DOIUrl":"10.1016/j.trd.2026.105222","url":null,"abstract":"<div><div>High-speed railway (HSR) is a sustainable transportation infrastructure, yet its comprehensive impacts on air quality remain unclear. This study examines the effects of HSR on six key air pollutants (i.e., PM<sub>2.5</sub>, PM<sub>10</sub>, NO<sub>2</sub>, O<sub>3</sub>, SO<sub>2,</sub> and CO) across 283 prefecture-level cities in China from 2008 to 2018. The results indicate that: (1) HSR has heterogeneous impacts on different pollutants. The marginal benefits for most pollutants strengthen over time, although the magnitude and direction of impacts vary considerably by pollutant type; (2) Further analysis identifies distinct pathways through which HSR affects air quality: particulate matter reduction occurs primarily through industrial transfer and upgrading, whereas NO<sub>2</sub> mitigation results from the substitution of road and air transport with rail services; (3) The relocation of pollution-intensive enterprises driven by HSR development may offset potential environmental gains in less developed regions. These findings offer crucial insights into the multifaceted environmental impacts of HSR.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"153 ","pages":"Article 105222"},"PeriodicalIF":7.7,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145962594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Operationalizing social justice theory in transport resource allocation 社会公平理论在交通资源配置中的应用

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2026-01-10 DOI: 10.1016/j.trd.2026.105218

Esta Qiu , David Rey , Travis Waller

Operationalizing social justice is challenged by the absence of a universal equity definition and inherent policy trade-offs. This study bridges theoretical social justice principles with operational decision-making by integrating four commonly discussed distributive justice theories—Utilitarianism, Rawls’ Egalitarianism, Prioritarianism, and Capabilitarian Sufficiency—into a bilevel bus frequency optimization model. It introduces linearized equity-oriented formulations to reflect the distinct distributive principles of these theories and proposes justice theory-driven equity metrics to evaluate distributive impacts using different ethical criteria. Using cumulative opportunity as a unit of distribution, the proposed frameworks and metrics are applied to Canberra’s southern suburbs. The results demonstrate that the choice of justice framework is not a neutral modelling decision but a normative one, with each framework producing distinct redistributive patterns and community-level trade-offs. This highlights the importance of aligning equity frameworks with policy objectives and governance contexts, as these choices ultimately shape public perception, political feasibility, and the long-term societal goals of transport investment.

由于缺乏普遍的公平定义和内在的政策权衡，社会正义的实施受到挑战。本研究通过将四种常用的分配正义理论——功利主义、罗尔斯的平均主义、优先主义和能力充足论——整合到一个双层公交频率优化模型中，将理论社会正义原则与运营决策联系起来。它引入了线性化的公平导向公式，以反映这些理论的不同分配原则，并提出了正义理论驱动的公平指标，以评估使用不同伦理标准的分配影响。将累积机会作为分配单位，提议的框架和指标应用于堪培拉南部郊区。结果表明，司法框架的选择不是一个中立的建模决策，而是一个规范的决策，每个框架产生不同的再分配模式和社区层面的权衡。这凸显了将公平框架与政策目标和治理环境相结合的重要性，因为这些选择最终会影响公众对交通投资的看法、政治可行性和长期社会目标。

{"title":"Operationalizing social justice theory in transport resource allocation","authors":"Esta Qiu , David Rey , Travis Waller","doi":"10.1016/j.trd.2026.105218","DOIUrl":"10.1016/j.trd.2026.105218","url":null,"abstract":"<div><div>Operationalizing social justice is challenged by the absence of a universal equity definition and inherent policy trade-offs. This study bridges theoretical social justice principles with operational decision-making by integrating four commonly discussed distributive justice theories—Utilitarianism, Rawls’ Egalitarianism, Prioritarianism, and Capabilitarian Sufficiency—into a bilevel bus frequency optimization model. It introduces linearized equity-oriented formulations to reflect the distinct distributive principles of these theories and proposes justice theory-driven equity metrics to evaluate distributive impacts using different ethical criteria. Using cumulative opportunity as a unit of distribution, the proposed frameworks and metrics are applied to Canberra’s southern suburbs. The results demonstrate that the choice of justice framework is not a neutral modelling decision but a normative one, with each framework producing distinct redistributive patterns and community-level trade-offs. This highlights the importance of aligning equity frameworks with policy objectives and governance contexts, as these choices ultimately shape public perception, political feasibility, and the long-term societal goals of transport investment.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"153 ","pages":"Article 105218"},"PeriodicalIF":7.7,"publicationDate":"2026-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145962660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

下一页尾页

类型

全部化学•材料生命科学医学物理工程技术环境•农林材料科学地球科学法学管理学化学环境科学与生态学计算机科学教育学经济学农林科学人文科学生物学数学物理与天体物理心理学综合性期刊其他工业工程理学历史学农学文学信息工程

数据库

全部 ACS Publications Elsevier ieeexplore Springer The Royal Society of Chemistry Wiley

期刊

Transportation Research Part D-transport and Environment

全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.

﹀