Transportation Research Part D-transport and Environment最新文献_第7页

A remote sensing-based paradigm for revealing road ecological impacts in permafrost regions 揭示永久冻土区道路生态影响的遥感范例

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-14 DOI: 10.1016/j.trd.2025.104933

Qingquan Sha , Jiawei Zhao , Lin Huang , Wei Cao , Jiahui Li , Liangxia Zhang , Yun Wang

{"title":"A remote sensing-based paradigm for revealing road ecological impacts in permafrost regions","authors":"Qingquan Sha , Jiawei Zhao , Lin Huang , Wei Cao , Jiahui Li , Liangxia Zhang , Yun Wang","doi":"10.1016/j.trd.2025.104933","DOIUrl":"10.1016/j.trd.2025.104933","url":null,"abstract":"<div><div>The ecological impacts of roads in permafrost regions remain poorly understood, particularly at small and medium scale, limiting effective conservation and road management strategies. We propose a multi-scale remote sensing-based paradigm to quantify these impacts throughout road construction and operation. Using spatial deviation (<em>D</em>), change rate (<em>I</em>), and Road Ecological Impact Index (REII), we assessed the Gongyu Expressway, the first expressway on the Tibetan Plateau. Results show that surface water and vegetation impacts extended up to 100 m, with seasonal variations: rainy season effects were 4–6 times stronger, and construction impacts exceeded operation impacts by 1.1–1.4 times. Monthly impact amplitudes surpassed annual values, highlighting intensified short-term variations. Our paradigm enables rapid, high-precision monitoring of road-induced ecosystem stresses, reducing time lags in ecological assessment. Given the sensitivity of permafrost environments, this approach is crucial for predicting and mitigating the long-term ecological effects of expanding expressway networks.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"147 ","pages":"Article 104933"},"PeriodicalIF":7.7,"publicationDate":"2025-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830009","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

Electric bicycles and public transport tickets: Ownership and car use patterns 电动自行车和公共交通票：所有权和汽车使用模式

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-13 DOI: 10.1016/j.trd.2025.104901

Nils Christian Hoenow , Viola Helmers , Eva H. Yang

引用次数: 0

Enhancement of roadway pavement resilience to flooding: impact assessment and mitigation strategies 提高道路路面抗水韧性：影响评估和缓解策略

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-13 DOI: 10.1016/j.trd.2025.104946

Xiao Chen, Hao Wang

{"title":"Enhancement of roadway pavement resilience to flooding: impact assessment and mitigation strategies","authors":"Xiao Chen, Hao Wang","doi":"10.1016/j.trd.2025.104946","DOIUrl":"10.1016/j.trd.2025.104946","url":null,"abstract":"<div><div>Flooding has been a great threat to the functionality and longevity of transportation infrastructure, particularly roadway pavements. This study utilizes a systematic approach to improve roadway resilience through comprehensive review and synthesis of existing knowledge and identification of current gaps. The study first reveals the diverse mechanisms of flooding-related risk, including surface material degradation, hydraulic scouring, subsurface saturation, subgrade erosion, and washout. It then explores non-destructive testing methods, and pavement performance modelling approaches for assessing flooding impacts through fragility curves, highlighting their respective advantages and limitations. Finally, various mitigation strategies are discussed, each offering unique benefits. These include nature-based solutions, roadway geometry adjustments, pavement design and maintenance enhancements, and post-flooding operation. Future research is recommended to better understand and prevent washout damage, characterize recovery period after flooding, and select mitigation strategies based on life-cycle assessment for improving infrastructure resilience under climate change.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"148 ","pages":"Article 104946"},"PeriodicalIF":7.7,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145010952","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

Assessing spatial access disparities to critical facilities during hurricanes in Florida 评估佛罗里达州飓风期间关键设施的空间出入差异

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-13 DOI: 10.1016/j.trd.2025.104957

Pooya Komeilian , Ramin Shabanpour

{"title":"Assessing spatial access disparities to critical facilities during hurricanes in Florida","authors":"Pooya Komeilian , Ramin Shabanpour","doi":"10.1016/j.trd.2025.104957","DOIUrl":"10.1016/j.trd.2025.104957","url":null,"abstract":"<div><div>This study investigates equitable access to critical facilities including gas stations, hotels, and shelters during hurricane evacuations in Florida. Using facility location data from the Homeland Infrastructure Foundation-Level Data and Google Places API, alongside hurricane risk data from FEMA’s National Risk Index, we develop an Evacuation Resource Index (ERI). The ERI incorporates facility proximity, calculated using a network-based approach, and population distribution to assess the adequacy of resources during evacuations. Univariate analysis using Local Moran’s I—a Local Indicator of Spatial Association—highlights significant statewide disparities in resource access, while the corresponding bivariate analysis pinpoints vulnerability hotspots where low ERI and high hurricane risk converge. It is also found that these hotspots are disproportionately populated by socially vulnerable communities characterized by factors such as low incomes, limited vehicle access, linguistic isolation, and older age. Furthermore, these areas exhibit high income inequality, as indicated by their Gini index. This research underscores the urgent need for equitable disaster preparedness strategies that prioritize vulnerable populations residing in high-risk areas. By addressing these disparities, we can enhance evacuation effectiveness and foster community resilience in the face of hurricanes.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"147 ","pages":"Article 104957"},"PeriodicalIF":7.7,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830007","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

Emission characteristics and mechanisms of VOCs in recycled asphalt incorporating rejuvenators 再生沥青中挥发性有机化合物的排放特征及机理

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-13 DOI: 10.1016/j.trd.2025.104961

Xinqiang Zhang , Bailin Shan , Xuejuan Cao , Boming Tang , Yubo Sun , Binbin Yin , Zhen Leng

{"title":"Emission characteristics and mechanisms of VOCs in recycled asphalt incorporating rejuvenators","authors":"Xinqiang Zhang , Bailin Shan , Xuejuan Cao , Boming Tang , Yubo Sun , Binbin Yin , Zhen Leng","doi":"10.1016/j.trd.2025.104961","DOIUrl":"10.1016/j.trd.2025.104961","url":null,"abstract":"<div><div>Rejuvenators play a key role in restoring the performance of aged asphalt and promoting the recycling of asphalt pavement materials. However, their impact on volatile organic compounds (VOCs) emissions from recycled asphalt remains poorly understood. This paper presents the first systematic investigation into the VOCs emission behavior of recycled asphalts incorporating rejuvenators. Results show that rejuvenators not only restore aged asphalt performance but also activate macromolecular compounds formed during aging. The VOCs emission characteristics vary with the type of rejuvenator: dilauryl thiodipropionate, with a simple composition, releases fewer VOC types but higher peak areas due to thermal decomposition into alkanes and oxygenated compounds; recycled vegetable-oil bottom and recycled bio-oil bottom, rich in light components, generate more diverse and complex VOCs. VOC emission characteristics from recycled asphalt depend on its physicochemical properties, such as Saturate, Aromatic, Resin, and Asphaltene components and molecular weight distribution.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"147 ","pages":"Article 104961"},"PeriodicalIF":7.7,"publicationDate":"2025-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830008","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

Planning smart link-based geofences for urban sustainability via speed limit management 通过限速管理，为城市可持续发展规划基于智能链路的地理围栏

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-12 DOI: 10.1016/j.trd.2025.104950

Wenqi Lu , Dongyu Luo , Ziwei Yi , Yikang Rui , Bin Ran

{"title":"Planning smart link-based geofences for urban sustainability via speed limit management","authors":"Wenqi Lu , Dongyu Luo , Ziwei Yi , Yikang Rui , Bin Ran","doi":"10.1016/j.trd.2025.104950","DOIUrl":"10.1016/j.trd.2025.104950","url":null,"abstract":"<div><div>Urban transportation faces severe challenges, including congestion, air pollution, and increased fuel consumption. With the widespread deployment of road monitoring equipment and the emergence of connected automated vehicles, precise speed management has become feasible. This paper combines link-based geofencing technology with speed management and proposes a smart link-based geofence planning (SLGP) approach based on deep reinforcement learning. We designed a sustainability-oriented reward function, enabling SLGP to simultaneously optimize traffic efficiency and reduce emission and fuel consumption when planning speed limits. Furthermore, we built a digital twin simulation platform that integrates multiple functional modules and scenarios for comprehensively evaluating the effectiveness of the SLGP. The results indicate that the SLGP significantly enhances urban transportation sustainability across various scenarios, particularly under high-volume scenarios, where it effectively reduces emissions and fuel consumption. This study provides robust support for leveraging digital twin and artificial intelligence technologies to empower traffic management and promote sustainability.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"147 ","pages":"Article 104950"},"PeriodicalIF":7.7,"publicationDate":"2025-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144827045","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

Resilience of urban road networks to climate change: a spatial-topological approach 城市道路网络对气候变化的适应能力：一种空间拓扑方法

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-11 DOI: 10.1016/j.trd.2025.104948

Shima Ashja-Ardalan , Ali Asghar Alesheikh , Mohammad Sharif , Dirk Wittowsky

{"title":"Resilience of urban road networks to climate change: a spatial-topological approach","authors":"Shima Ashja-Ardalan , Ali Asghar Alesheikh , Mohammad Sharif , Dirk Wittowsky","doi":"10.1016/j.trd.2025.104948","DOIUrl":"10.1016/j.trd.2025.104948","url":null,"abstract":"<div><div>As climate change intensifies, ensuring the resilience of urban road networks against mid- to long-term climatic shifts is crucial. This study develops a novel framework combining complex network theory, topological measures, and spatial climate exposure to assess road network resilience under climate change scenarios, focusing on precipitation and temperature changes. Entropy-weighted TOPSIS identifies key network components based on combined topological and spatial criteria, while resilience is evaluated through four component removal strategies: random, topological-based, climate-based, and spatial-topological. Metrics such as normalized efficiency, relative size of the giant component, average shortest path, and diameter are analyzed. Applying this approach to Duisburg, Germany, results highlight that central and southeastern regions require priority climate adaptation, containing key components especially under SSP2-4.5 and SSP3-7.0 precipitation scenarios, where resilience is lower. The study underscores the necessity of integrating spatial and topological factors for effective climate adaptation planning.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"148 ","pages":"Article 104948"},"PeriodicalIF":7.7,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145027292","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

Communicating car costs: Results from stated and revealed preference experiments 沟通汽车成本：从陈述和揭示偏好实验的结果

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-11 DOI: 10.1016/j.trd.2025.104921

Ivan Petrov , James Carroll , Eleanor Denny

引用次数: 0

Carbon pricing and transit accessibility to jobs 碳定价和交通运输可达性

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-11 DOI: 10.1016/j.trd.2025.104926

Andrew Nell , Daniel Herszenhut , Camilla Knudsen , Shohei Nakamura , Marcus Saraiva , Paolo Avner

引用次数: 0

An integrated framework for the economic and environmental assessment of retrofitted hydrogen-powered aircraft 改进氢动力飞机的经济和环境评估的综合框架

IF 7.7 1区工程技术

Transportation Research Part D-transport and Environment Pub Date : 2025-08-06 DOI: 10.1016/j.trd.2025.104947

Saeed Rostami , Abbas Maleki , Khodayar Javadi

{"title":"An integrated framework for the economic and environmental assessment of retrofitted hydrogen-powered aircraft","authors":"Saeed Rostami , Abbas Maleki , Khodayar Javadi","doi":"10.1016/j.trd.2025.104947","DOIUrl":"10.1016/j.trd.2025.104947","url":null,"abstract":"<div><div>Achieving net-zero carbon emissions in aviation by 2050 requires a shift toward alternative energy sources. While hydrogen is emerging as a potential option for the transition, it is necessary to develop a comprehensive platform to evaluate the environmental and economic (2E) impacts of retrofitting existing aircraft for hydrogen use. This study introduces the Hydrogen-powered Aircraft Evaluation Tool (HyAET), a framework designed to assesses the 2E performance of retrofitted hydrogen-powered aircraft. HyAET incorporates six hydrogen production pathways, nine representative aircraft classes, and seven global regions, offering a robust foundation for strategic decision-making in the aviation sector. Results show that the use of green hydrogen (e.g., from electrolysis using renewable energy—ERE) can reduce CO<sub>2</sub>-equivalent emissions by up to 45% in small regional jets, it also increases direct operating costs by around 65%. Medium-sized aircraft, particularly narrow-body types, demonstrate the most balanced performance and can achieve economic-environmental index (EEI) values near or below 1 when powered by low-carbon hydrogen (e.g., ERE or renewable thermal splitting). In contrast, very large or very small aircraft often face economic or environmental penalties regardless of flight region or fuel source. Sensitivity analyses reveal that reductions in NO<sub>x</sub> emissions—especially for large aircraft—are essential to achieving environmental parity with kerosene, with a 30% cut required to break even. Finally, improving tank gravimetric efficiency from 0.2 to 0.8 reduces both emissions and DOC across all classes, reinforcing the importance of lightweight tank technologies.</div></div>","PeriodicalId":23277,"journal":{"name":"Transportation Research Part D-transport and Environment","volume":"147 ","pages":"Article 104947"},"PeriodicalIF":7.7,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144781817","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