Transportation Research Part D-transport and Environment最新文献

英文中文

Configurational impacts of government policies on electric vehicle diffusion: A global analysis 政府政策对电动汽车扩散的配置影响：一个全球分析

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-11 DOI: 10.1016/j.trd.2025.105144

Chi Yang, Lixian Qian, Miaomiao Liu

Prior studies show that the effectiveness of government policies on electric vehicle (EV) diffusion varies significantly across different macro-environments. To address this complexity, we adopt a configurational perspective and use fuzzy-set Qualitative Comparative Analysis. Using data collected from International Energy Agency and World Bank, we analyze 516 national EV policies from 25 major countries (2011–2023) to examine how government policies interact with macro-environments and jointly shape EV diffusion. We identify multiple solutions of policy features (i.e., density, intensity, and diversity) that lead to effective EV diffusion in different macro-environments and the key to success is finding fitted combinations. Our analysis also shows that government policies are not always necessary for promoting EV diffusion, and the roles of both financial and regulatory policies are nuanced and context-dependent. By adopting a configurational perspective, this research helps reconcile inconsistencies in existing literature on policy impact and offers context-specific insights for policymakers.

已有研究表明，在不同的宏观环境下，政府政策对电动汽车推广的效果存在显著差异。为了解决这种复杂性，我们采用了配置的观点，并使用模糊集定性比较分析。利用国际能源署和世界银行收集的数据，我们分析了25个主要国家的516项电动汽车政策（2011-2023年），以研究政府政策如何与宏观环境相互作用并共同影响电动汽车的扩散。我们确定了多种政策特征（即密度、强度和多样性）的解决方案，这些解决方案可以在不同的宏观环境中导致电动汽车的有效扩散，成功的关键是找到合适的组合。我们的分析还表明，政府政策并不总是促进电动汽车扩散的必要条件，金融政策和监管政策的作用都是微妙的，并且取决于具体情况。通过采用配置视角，本研究有助于调和现有文献中关于政策影响的不一致性，并为政策制定者提供具体情境的见解。

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引用次数: 0

Urban road network resilience under emergencies: a microscopic simulation framework 突发事件下城市路网弹性：微观模拟框架

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-10 DOI: 10.1016/j.trd.2025.105158

Weiping Wang , Yingying Wan , Qian Liu , Hao Liu , Chunhong Li , Saini Yang , Xinjun Lai , Yimeng Liu , Qin Yue

Urban transportation systems face growing risks from climate-induced disasters and infrastructure disruptions. This study presents a resilience-oriented evaluation framework integrating microscopic traffic simulation via SUMO to examine both structural and functional performance of urban road networks facing four distinct emergency scenarios. Utilized in the context of China’s Greater Bay Area, the framework quantifies system responses in terms of travel delays, congestion propagation, and network connectivity. Results indicate that (i) peak-hour delays are nearly six times higher than off-peak under severe disturbances; (ii) flood events lead to the highest departure delays despite limited changes in travel distance; and (iii) failure of coastal bridges triggers significant structural fragmentation. These findings highlight spatial temporal vulnerabilities in urban transport systems and provide actionable insights for emergency traffic management, climate adaptation planning, and resilient infrastructure design in rapidly urbanizing regions.

城市交通系统面临着气候引发的灾害和基础设施中断带来的越来越大的风险。本研究提出了一个以弹性为导向的评估框架，结合微观交通模拟，通过SUMO来研究面对四种不同紧急情况的城市道路网络的结构和功能性能。在中国大湾区的背景下，该框架量化了交通延迟、拥堵传播和网络连接方面的系统响应。结果表明：(1)在严重干扰下，高峰时段的延误时间比非高峰时段高出近6倍；（ii）尽管旅行距离变化有限，但洪水事件导致的出发延误却是最高的；(3)沿海桥梁的破坏引发了显著的结构破碎。这些发现突出了城市交通系统的时空脆弱性，并为快速城市化地区的应急交通管理、气候适应规划和弹性基础设施设计提供了可操作的见解。

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引用次数: 0

Viscoelastic damage equivalence for asphalt mastics under cyclic temperature variations: Towards Climate-Resilient-Pavements 循环温度变化下沥青胶料的粘弹性损伤等效：走向气候弹性路面

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-10 DOI: 10.1016/j.trd.2025.105157

He Zhan , Huining Xu , Luís Guilherme de Picado-Santos , Iran Rocha Segundo , Fengwei An , Jinqi Feng , Yiqiu Tan

Escalating climate change with pronounced diurnal temperature variations impacts asphalt pavement performance and environmental sustainability. This accelerates fatigue damage through repeated thermal cycling. Unlike traditional simplified thermal models, our approach integrates rheological characterization with accelerated thermal cycling for asphalt mastics to develop a comprehensive viscoelastic damage equivalence method. The innovation establishes time–temperature-cyclic thermal stress equivalence through stress relaxation analysis. It also introduces a time–temperature-cyclic thermal stress shift factor that incorporates Williams-Landel-Ferry (WLF) parameters with cyclic temperature factors. Master curve analysis establishes the crossover frequency as the governing parameter for the shift factor, due to its physical and statistical merits. The modified Coffin-Manson model yielded viscoelastic damage equivalence factors, validated within ± 20 % relative error. The method yields a preliminary adaptability zoning map, identifying northwestern regions (Xinjiang, Tibet, and Qinghai) and the northeastern provinces as high-priority zones for fatigue-resistant materials. This provides a framework for material selection and development in temperature-fluctuation-prone regions.

日益加剧的气候变化和明显的昼夜温度变化影响着沥青路面的性能和环境的可持续性。这通过反复的热循环加速了疲劳损伤。与传统的简化热模型不同，我们的方法将沥青胶粘剂的流变特性与加速热循环结合起来，开发了一种全面的粘弹性损伤等效方法。该创新通过应力松弛分析建立了时间-温度循环热应力等效。它还引入了一个时间-温度循环热应力位移因子，该因子结合了Williams-Landel-Ferry （WLF）参数和循环温度因子。主曲线分析由于其物理和统计上的优点，将交叉频率作为移位因子的控制参数。改进的Coffin-Manson模型得到了粘弹性损伤等效因子，验证误差在±20%以内。该方法产生了一个初步的适应性分区图，将西北地区（新疆、西藏和青海）和东北省份确定为抗疲劳材料的高优先区。这为温度波动容易地区的材料选择和开发提供了一个框架。

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引用次数: 0

Life cycle impacts of electrified vehicles considering use behavior and battery aging 考虑使用行为和电池老化的电动汽车生命周期影响

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-10 DOI: 10.1016/j.trd.2025.105130

Tejas-Dilipsing Patil , Emmanuel Vinot , Rochdi Trigui , Simone Ehrenberger

This study assesses in depth the environmental impacts of electrified vehicles considering Plug-in Hybrid Electric Vehicles (PHEVs) as the most complex case, emphasizing the role of driving behavior, charging habits, and battery aging. By modeling realistic daily and annual mileage patterns, the study captures the variability in PHEV use and its significant effect on emissions. A comprehensive Life Cycle Assessment compares PHEVs, Battery Electric Vehicles, Hybrid Electric Vehicles, and Conventional Vehicles, using electricity mixes from France and Germany. The results show that electrifying vehicles allows consistent reductions for certain impact categories, as Global Warning Potential. However, it is strongly dependent on the electricity mix and electrified vehicles present higher values for certain other impact categories. The last part studies the influence of increasing battery size related to battery aging. Larger batteries may slightly extend vehicle lifespan, but their added production impacts often outweigh environmental gains.

本研究以插电式混合动力汽车（phev）为最复杂的案例，深入评估了电动汽车对环境的影响，强调了驾驶行为、充电习惯和电池老化的作用。通过模拟真实的日和年行驶里程模式，该研究捕捉到了插电式混合动力汽车使用的可变性及其对排放的显著影响。一项全面的生命周期评估比较了插电式混合动力汽车、纯电动汽车、混合动力汽车和传统汽车，使用了法国和德国的混合电力。结果表明，电动汽车可以持续减少某些影响类别，如全球预警潜力。然而，它强烈依赖于电力结构，电动汽车在某些其他影响类别中呈现更高的值。最后一部分研究了电池尺寸增大对电池老化的影响。更大的电池可能会略微延长车辆的寿命，但它们增加的生产影响往往超过了环境收益。

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引用次数: 0

Strategies, opportunities, and challenges of integrating shared micromobility with public transport 共享微交通与公共交通整合的策略、机遇和挑战

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-09 DOI: 10.1016/j.trd.2025.105165

Anne Brown , Niels van Oort

Shared micromobility may enhance accessibility as part of a comprehensive public transport network. A qualitative stakeholder perspective is needed to reflect the practical opportunities and challenges for integrating shared micromobility and public transport. This research synthesizes literature alongside 25 interviews with professionals across North America and Europe to answer: 1) what challenges and opportunities do different integration approaches offer? And 2) what should be prioritized when integrating shared micromobility and public transport? We frame integration efforts in three pillars: 1) institutional, 2) physical, and 3) digital integration. Findings show that integration efforts are effective only when foundational preconditions are met including high-quality public transport, dedicated micromobility infrastructure, supportive land uses, and issue framing. Institutional and physical integration are both necessary to facilitate multimodal travel and create cohesive regional travel networks. Digital tools can support integration but often requires substantial resources, and faces data sharing and privacy, feasibility, and scaling challenges.

作为综合公共交通网络的一部分，共享微型交通工具可以提高可达性。需要一个定性的利益相关者视角来反映整合共享微型交通和公共交通的实际机遇和挑战。本研究综合了文献以及对北美和欧洲的25位专业人士的采访，以回答：1)不同的整合方法提供了哪些挑战和机遇？2)在整合共享微出行和公共交通时，应该优先考虑什么？我们将整合工作分为三个支柱：1)制度整合，2)实体整合，3)数字整合。研究结果表明，只有满足基本前提条件，包括高质量的公共交通、专用的微交通基础设施、支持性土地利用和问题框架，整合工作才会有效。为了促进多式联运和创建有凝聚力的区域旅游网络，制度和物质一体化都是必要的。数字工具可以支持集成，但通常需要大量资源，并面临数据共享和隐私、可行性和可扩展性方面的挑战。

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引用次数: 0

How will arctic shipping emissions evolve? A spatiotemporal topology-aware transformer approach 北极航运排放将如何演变？一种时空拓扑感知转换器方法

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-06 DOI: 10.1016/j.trd.2025.105134

Younghwi Kim , Jaehoon Lee , Hyerim Bae , Sunghyun Sim

This study proposes a novel spatiotemporal forecasting framework that integrates spatial clustering with a transformer-based model, termed the spatiotemporal topology-aware transformer (SToT), to predict maritime emissions across the Arctic region. Using Arctic Ship Traffic Data (ASTD), node-based representations are constructed through spatial clustering, enabling the joint learning of spatial correlations and temporal patterns using SToT. Experimental results demonstrate that our model outperforms existing methods by 17% in terms of the root mean square error, relative standard error, and node-level Pearson correlation coefficient, validating its predictive accuracy and robustness. According to SToT-based forecasts extending through 2030, total emissions are projected to increase by 30.8% compared with 2022 emissions, with N₂O and CO₂ exhibiting particularly significant growth. Furthermore, this study discusses the environmental, scientific, and political implications of maritime emissions. The proposed framework offers a scalable and accurate solution for climate risk assessments and sustainable policy planning in the Arctic region.

本研究提出了一种新的时空预测框架，该框架将空间聚类与基于变压器的模型（称为时空拓扑感知变压器（SToT））相结合，以预测整个北极地区的海上排放。利用北极船舶交通数据（ASTD），通过空间聚类构建基于节点的表示，从而可以使用SToT联合学习空间相关性和时间模式。实验结果表明，该模型在均方根误差、相对标准误差和节点水平Pearson相关系数方面优于现有方法17%，验证了其预测准确性和稳健性。根据基于stot的预测，到2030年，与2022年的排放量相比，总排放量预计将增加30.8%，其中一氧化二氮和二氧化碳的增长尤为显著。此外，本研究还讨论了海洋排放对环境、科学和政治的影响。该框架为北极地区的气候风险评估和可持续政策规划提供了可扩展和准确的解决方案。

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引用次数: 0

The impact of particulate pollutants on lighting environment in urban road tunnels 颗粒物污染物对城市道路隧道照明环境的影响

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-06 DOI: 10.1016/j.trd.2025.105156

Xianyun Cai , Qunfeng Dai , Zhengyang Jiang , Keqin Wang , Yanan Liu , Hongjie Liu , Zhanji Zheng

The enclosed structure and complex internal environment of road tunnels facilitate pollutant accumulation, which adversely impacts intra-tunnel air quality and lighting environment, thereby potentially compromising driving safety. Despite these interconnected issues, current research on tunnel ventilation and lighting environments has progressed along largely separate trajectories, with a notable paucity of systematic investigations that integrate these two critical aspects. To address this problem, this study initially analyzed the distribution characteristics of pollutant concentrations within urban road tunnels through field measurements. Subsequently, mathematical models correlating particulate matter concentration with interior zone luminance were developed via tunnel lighting simulation experiments. Finally, Computational Fluid Dynamics (CFD) simulations were utilized to propose optimal ventilation strategies for optimizing the tunnel lighting environment. This research furnishes a theoretical foundation and practical insights for the synergistic design of ventilation and lighting in urban road tunnels, addressing the concomitant requirements of vehicular safety and visual comfort.

公路隧道封闭的结构和复杂的内部环境有利于污染物的积累，对隧道内的空气质量和照明环境造成不利影响，进而影响行车安全。尽管存在这些相互关联的问题，但目前对隧道通风和照明环境的研究在很大程度上是沿着不同的轨迹发展的，明显缺乏将这两个关键方面结合起来的系统研究。为了解决这一问题，本研究通过实地测量，初步分析了城市道路隧道内污染物浓度的分布特征。随后，通过隧道照明模拟实验，建立了颗粒物浓度与室内区域照度的数学模型。最后，利用计算流体动力学（CFD）模拟提出了优化隧道照明环境的最佳通风策略。本研究为城市道路隧道通风与照明协同设计提供了理论基础和实践见解，解决了车辆安全和视觉舒适的双重要求。

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引用次数: 0

Identifying high-emitting Euro 7 vehicles with the NOx-to-fuel mass ratio 识别具有nox与燃油质量比的高排放欧7车辆

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-05 DOI: 10.1016/j.trd.2025.105121

Alvin Barbier , José Miguel Salavert , Stefan Hausberger , Carlos E. Palau , Carlos Guardiola

This paper examines the introduction of the NO_x-to-fuel mass ratio in the Euro 7 regulation, a parameter designed to evaluate the effectiveness of the vehicle emission control by assessing the mass of NO_x emitted relative to fuel consumption. This approach has been selected for its potential to identify high-emitting vehicles, which may result from malfunctioning or manipulated emission control systems. This study reviews in detail the methodology proposed by the European Commission for this parameter utilizing data from an on-road Euro 6d-Temp diesel vehicle, anticipating its outcomes within the Euro 7 framework and highlighting some potential limitations.

本文考察了在欧7法规中引入的NOx与燃料质量比，该参数旨在通过评估NOx排放相对于燃料消耗的质量来评估车辆排放控制的有效性。选择这种方法是因为它具有识别高排放车辆的潜力，这些车辆可能是由故障或操纵的排放控制系统造成的。本研究利用一辆欧6d-Temp柴油车的道路数据，详细回顾了欧盟委员会为该参数提出的方法，预测了其在欧7框架内的结果，并强调了一些潜在的局限性。

引用次数: 0

LSTM-Transformer-based state of charge and short-term remaining range prediction for electric buses 基于lstm -变压器的电动客车充电状态及短期剩余里程预测

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-04 DOI: 10.1016/j.trd.2025.105155

Benxiao Lou, Jinjun Tang, Runze Liu, Lipeng Hu, Junqing Ye

Electric buses are crucial for sustainable urban transport, yet accurately predicting battery state of charge and short-term remaining driving range remains challenging. This study proposes a multi-task framework based on Long Short-Term Memory-Transformer model for jointly predicting state of charge and short-term remaining driving range under real-world operational conditions. The framework utilizes Long Short-Term Memory model to capture dynamic variations, while Transformer extracts long-term dependencies such as battery ageing. The study further integrates multi-source data including vehicle, battery, and weather information to enhance feature representation and model robustness. Experiments conducted on six real-world electric bus datasets demonstrate the model’s superior predictive performance, achieving an average R² of 0.9426 for state of charge and 0.9568 for short-term remaining driving range, outperforming single-task and baseline approaches. Ablation studies and comparative analyses further validate the hybrid model architecture and multi-task learning design. This study contributes to strengthening energy management for electric bus fleets.

电动公交车对可持续城市交通至关重要，但准确预测电池充电状态和短期剩余行驶里程仍然具有挑战性。本研究提出了一种基于长短期记忆-变压器模型的多任务框架，用于联合预测实际工况下的充电状态和短期剩余续驶里程。该框架利用长短期记忆模型捕获动态变化，而Transformer提取长期依赖关系，如电池老化。该研究进一步整合了包括车辆、电池和天气信息在内的多源数据，以增强特征表示和模型鲁棒性。在六个真实的电动客车数据集上进行的实验表明，该模型具有优越的预测性能，对充电状态的平均R2为0.9426，对短期剩余续驶里程的平均R2为0.9568，优于单任务和基线方法。研究和对比分析进一步验证了混合模型架构和多任务学习设计。该研究有助于加强电动客车车队的能源管理。

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引用次数: 0

Barriers and opportunities for dynamic adaptation of coastal railways 沿海铁路动态适应的障碍与机遇

IF 7.7 1区工程技术 Q1 ENVIRONMENTAL STUDIES

Transportation Research Part D-transport and Environment

Pub Date : 2025-12-04 DOI: 10.1016/j.trd.2025.105129

Michelle Ochsner , Gunnel Göransson , Johannes Hagström , Carl-William Palmqvist

Railways are vital for climate mitigation as a low-carbon mode of transport but must also be resilient to climate change impacts. This study explores dynamic adaptation strategies for coastal railway infrastructure in Sweden, focusing on Trelleborg. Stakeholder workshops informed adaptation pathways using a Dynamic Adaptive Pathways Planning Light (DAPP)-light approach, which enhances stakeholder engagement and supports long-term decision-making under uncertainty. A Windows of Opportunity framework was applied to assess governance conditions for implementation. Findings show that railway adaptation must be integrated with broader urban planning. Key barriers include fragmented responsibilities, rigid land use policies, limited funding, and reluctance to engage in long-term planning. Opportunities lie in reframing existing policies, fostering intersectoral collaboration, and adopting incremental planning.

铁路作为一种低碳运输方式，对减缓气候变化至关重要，但也必须能够适应气候变化的影响。本研究探讨了瑞典沿海铁路基础设施的动态适应策略，重点是特瑞堡。利益相关者研讨会采用动态自适应路径规划轻量化（DAPP -light）方法，为适应路径提供信息，从而增强利益相关者的参与，支持不确定性下的长期决策。应用机会之窗框架来评估实现的治理条件。研究结果表明，铁路适应必须与更广泛的城市规划相结合。主要障碍包括责任分散、土地使用政策僵化、资金有限以及不愿参与长期规划。机会在于重新制定现有政策、促进部门间合作和采用渐进式规划。

引用次数: 0

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