Transportation Engineering最新文献_第2页

Cost-benefit analysis methodology for new rail vehicle concepts with alternative powertrain systems 具有替代动力系统的新轨道车辆概念的成本效益分析方法

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2026-01-18 DOI: 10.1016/j.treng.2026.100422

Benedikt Hertel , Evnika David , Johannes Pagenkopf , Benedikt Scheier , Christoph Streuling

{"title":"Cost-benefit analysis methodology for new rail vehicle concepts with alternative powertrain systems","authors":"Benedikt Hertel , Evnika David , Johannes Pagenkopf , Benedikt Scheier , Christoph Streuling","doi":"10.1016/j.treng.2026.100422","DOIUrl":"10.1016/j.treng.2026.100422","url":null,"abstract":"<div><div>There is currently an increased interest in the reactivation of secondary railway lines in Germany. These lines are mostly in bad condition and are not electrified. As diesel-powered vehicles are to be phased out in the future, in order to reduce greenhouse gas emissions, emission-free vehicles are required.</div><div>Market available vehicles are too large and not suited to the needs of low-frequency secondary lines. Due to the high cost of track electrification, vehicles with alternative drive systems are brought into focus. In addition, high infrastructure costs are incurred for track reactivation.</div><div>The aim of this work is to develop a comprehensive evaluation approach for a cost-benefit analysis to analyse the economic viability of low frequented railway lines and lines to be reactivated. The advantages of small rail vehicles were discussed on the basis of two tracks to be reactivated and two lines currently in operation. Based on these operational scenarios, cost analyses and cost-benefit analyses were carried out using four different types of vehicles. A sensitivity analysis was used to analyse the impact of passenger utilization and reactivation costs on economic viability.</div><div>The results show the significant influence of infrastructure-related costs associated with reactivating tracks, as well as track access charges and station fees for tracks in operation. Small vehicle concepts such as rail buses can contribute to cost-efficient operation on low-frequency secondary lines. This study aims to contribute to a better understanding of the factors influencing the economic viability of rail operations on lines with low passenger utilization rates.</div></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"23 ","pages":"Article 100422"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel approach to combating air pollution from associated gas flares by innovative hot air balloon technology 通过创新的热气球技术对抗伴生气体燃烧造成的空气污染的新方法

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2025-10-26 DOI: 10.1016/j.treng.2025.100403

Tahseen Hameed khalif , Mudhar A. Al-Obaidi , Farhan Lafta Rashid , Issa Omle

{"title":"A novel approach to combating air pollution from associated gas flares by innovative hot air balloon technology","authors":"Tahseen Hameed khalif , Mudhar A. Al-Obaidi , Farhan Lafta Rashid , Issa Omle","doi":"10.1016/j.treng.2025.100403","DOIUrl":"10.1016/j.treng.2025.100403","url":null,"abstract":"<div><div>Large quantities of associated natural gas have been burned in oil fields since the discovery of oil, until its flares were called the eternal fire. The combustion products cause significant air pollution in work environments and surrounding communities, where a huge waste could be invested in the economic development of oil-producing countries. This research presents a novel hot air balloon technology integrated with hot gases from associated gas flares to disperse pollutants (CH₄, CO₂, SO₂, CO, nitrogen oxides (NOx) and volatile organic compounds) at proper heights, thus refining air quality near ground level. Specifically, this system utilises wasted energy from burning associated gas to generate electrical energy to address the economic loss connected to gas flaring. Theoretical design and a theoretical model derived from the literature are used to measure pollutant concentrations at different balloon altitudes while considering the impact of pollutant discharge point on air quality near the ground surface. The results indicate that the pollutant concentration of 114.16 μg/m<sup>3</sup> at 100 m of balloon altitude. Afterwards, a balloon of 3.5 m diameter is constructed and successfully integrated to an electricity generation system. In turn, the results reveal the generation of 225.2 W of power and 1 A of current within an ascent time of just 8.2 s, accomplished with a temperature difference of 85 °C between the interior and exterior of the balloon. Accordingly, this advanced technology not only disperses hazardous gaseous combustion products away from human populations but also exploits lost thermal energy, aiding to sustainable energy solutions and elucidating high operational efficacy. In other words, the potential of this technology is assured as an efficient technique to mitigate air pollution from associated gas flares while generating valued electrical energy.</div></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"23 ","pages":"Article 100403"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145926709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhancing passenger-bus crashworthiness through frontal structural reinforcement 通过正面结构加固提高客车耐撞性

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2026-02-16 DOI: 10.1016/j.treng.2026.100430

Veena Phunpeng , Sireegorn Sumklang , Wipada Boransan , Watcharapong Patangtalo , Suksun Horpibulsuk , Avirut Chinkulkijniwat

{"title":"Enhancing passenger-bus crashworthiness through frontal structural reinforcement","authors":"Veena Phunpeng , Sireegorn Sumklang , Wipada Boransan , Watcharapong Patangtalo , Suksun Horpibulsuk , Avirut Chinkulkijniwat","doi":"10.1016/j.treng.2026.100430","DOIUrl":"10.1016/j.treng.2026.100430","url":null,"abstract":"<div><div>Passenger buses are highly vulnerable to frontal collisions, which account for a significant proportion of severe accidents. This study addresses this issue by redesigning the frontal structure of buses to comply with UNECE R29 (Rev.2) crashworthiness standards. A thin-walled reinforcement framework was integrated into the frontal module and evaluated using explicit finite element simulation. The improved structure exhibits more stable deformation behaviour, enhanced crash energy management, and complete preservation of the ECE-defined survival space through the elimination of steering-assembly intrusion as defined by UNECE R29 (Rev.2). The peak deceleration was also substantially reduced compared with the original configuration, indicating smoother load transfer and improved structural crashworthiness. The improvement arise not from increased total energy absorption capacity but from more effective distribution of impact loads and greater deformation stability. Computational efficiency was further enhanced through Virtual Topology (VT), which significantly reduced simulation time. Overall, the findings demonstrate meaningful structural-performance improvements and provide a distinct contribution through the system-level integration of thin-walled reinforcements into a full bus structure under UNECE R29 (Rev.2), directly linking reinforcement design to survival-space preservation, steering-intrusion mitigation, and deceleration response while improving computational efficiency.</div></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"23 ","pages":"Article 100430"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Age-related cracking resistance of waste PET plastic-modified superpave hot mix asphalt containing rejuvenated RAP” [TRENG, 22 (2025), 100412] “含再生RAP的废PET塑料改性超铺热混合沥青的抗老化性”的勘误表[j] .化工进展，22(2025),100412。

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2025-12-19 DOI: 10.1016/j.treng.2025.100418

Mohei Menul Islam, Quazi Sazzad Hossain

引用次数: 0

A relay-chain-powered Ciphertext-Policy Attribute-Based Encryption in Intelligent Transportation Systems 智能交通系统中基于中继链的密文-策略属性加密

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2026-02-05 DOI: 10.1016/j.treng.2026.100424

Aparna Singh , Geetanjali Rathee , Chaker Abdelaziz Kerrache , Mohamed Chahine Ghanem

{"title":"A relay-chain-powered Ciphertext-Policy Attribute-Based Encryption in Intelligent Transportation Systems","authors":"Aparna Singh , Geetanjali Rathee , Chaker Abdelaziz Kerrache , Mohamed Chahine Ghanem","doi":"10.1016/j.treng.2026.100424","DOIUrl":"10.1016/j.treng.2026.100424","url":null,"abstract":"<div><div>The rapid growth of Intelligent Transportation Systems (ITS) requires secure, efficient, and context-aware data sharing across heterogeneous and geographically distributed participants. We propose a relay-chain-driven architecture that couples a context-aware smart contract with a modified Ciphertext-Policy Attribute-Based Encryption (CP-ABE) scheme to support dynamic access control under low-latency constraints. The relay-chain contract evaluates event metadata (type, time, region) and selects an appropriate policy strictness, On-Board Units (OBUs) then encrypt and store ciphertext on regional blockchains, while the relay chain maintains global attribute definitions, revocation state, and cross-region discovery. The model proposes a context-aware smart contract on a worldwide relay chain that checks data properties, including event type, time, and geographical region, to determine the appropriate encryption policy. From such relay-directed judgement, On-Board Units (OBUs) encrypt data using CP-ABE and store ciphertext on localised regional blockchains, thereby avoiding reliance on symmetric encryption or off-chain storage. Robust, multi-attribute access rules protect high-sensitivity events, whereas common updates use lighter policies to reduce processing burdens. The crypto system also adds traceability and low-latency revocation, with global enforcement managed through the relay chain. This distributed, scalable model strikes a proper balance between real-time responsiveness and security, making it highly suitable for next-generation vehicular networks that operate across multi-jurisdictional domains.</div></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"23 ","pages":"Article 100424"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The use of Ground Penetrating Radar and artificial intelligence for automated railway trackbed stratigraphy and Ballast Fouling assessment 探地雷达和人工智能技术在铁路轨道地层和道砟污垢自动评估中的应用

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2025-12-10 DOI: 10.1016/j.treng.2025.100415

Ernest Mbubia Tchoua , Jérôme Tissier , Antoine Martin , Yannick Fargier , Amine Ihamouten

{"title":"The use of Ground Penetrating Radar and artificial intelligence for automated railway trackbed stratigraphy and Ballast Fouling assessment","authors":"Ernest Mbubia Tchoua , Jérôme Tissier , Antoine Martin , Yannick Fargier , Amine Ihamouten","doi":"10.1016/j.treng.2025.100415","DOIUrl":"10.1016/j.treng.2025.100415","url":null,"abstract":"<div><div>Intrusive trenching and coring remain the reference for railway trackbed diagnosis but lack coverage and repeatability. This paper proposes a hybrid GPR–AI framework that automates the detection of dielectric interfaces and the estimation of ballast permittivity and thickness. Synthetic FDTD simulations are used to evaluate Mask Region-based Convolutional Neural Network (Mask R-CNN) for interface segmentation and XGBoost (gradient-boosted trees)/Support Vector Regression(SVR) for layer-wise regression. Results on controlled data confirm high interface detection accuracy (IoU <span><math><mo>≈</mo></math></span> 0.81) and robust estimation of shallow dielectric parameters (<span><math><mrow><msup><mrow><mi>R</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>></mo><mn>0</mn><mo>.</mo><mn>9</mn></mrow></math></span>), while sequential conditioning markedly improves deeper-layer predictions. Validation on field measurements acquired with a broadband (40–3000 MHz) GPR antenna array demonstrates good transferability of the methodology, with reliable stratigraphy reconstruction and dielectric-based material attribution along an operational track section. The framework unifies stratigraphy and fouling assessment in a single automated workflow, offering a scalable and interpretable alternative to invasive methods and paving the way for predictive maintenance at the network scale.</div></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"23 ","pages":"Article 100415"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145711873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Digital twin framework for electric truck route and infrastructure planning in the Nordic region 北欧地区电动卡车路线和基础设施规划的数字孪生框架

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2026-02-09 DOI: 10.1016/j.treng.2026.100426

Tero Kaarlela , Sergei Alekseev , Petteri Maljamäki , Eero Ikäheimo , Emil Kurvinen

{"title":"Digital twin framework for electric truck route and infrastructure planning in the Nordic region","authors":"Tero Kaarlela , Sergei Alekseev , Petteri Maljamäki , Eero Ikäheimo , Emil Kurvinen","doi":"10.1016/j.treng.2026.100426","DOIUrl":"10.1016/j.treng.2026.100426","url":null,"abstract":"<div><div>The electrification of road transportation poses multi-faceted challenges in the Nordic region, where cold ambient temperatures, long distances, and limited charging infrastructure affect operational efficiency and feasibility. This study presents a novel integrated framework that combines artificial intelligence, digital twins, and co-simulation to support energy-efficient routing and infrastructure planning for heavy-duty electric vehicles in the Nordic region. A Gradient Boosting model was trained on over 180 real-world intercity trips of data collected from an electric truck to estimate battery depth of discharge based on key operational factors. Motor load, torque, and total weight emerged as dominant predictors, while ambient temperature had a moderate effect. A digital twin environment was developed to assess the impact of various charging infrastructure scenarios, and a real-time co-simulation model was used to evaluate energy flow and support cost analysis. Results confirm the framework’s capability to support infrastructure planning and fleet operation optimization during winter. The approach provides actionable insights for logistics operators and policymakers who are advancing the electrification of heavy-duty vehicles in the Nordic region.</div></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"23 ","pages":"Article 100426"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146173527","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The investigation of the impact of geosynthetics reinforced unpaved roads using plate load tests and finite element method 采用板载试验和有限元法对土工合成材料加筋公路的影响进行了研究

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2026-02-13 DOI: 10.1016/j.treng.2026.100428

Shadi Hanandeh , Zaid Alajlan , Frank I. Aneke , Murad Abu-Farsakh , Ruba A. Alkharabsheh

{"title":"The investigation of the impact of geosynthetics reinforced unpaved roads using plate load tests and finite element method","authors":"Shadi Hanandeh , Zaid Alajlan , Frank I. Aneke , Murad Abu-Farsakh , Ruba A. Alkharabsheh","doi":"10.1016/j.treng.2026.100428","DOIUrl":"10.1016/j.treng.2026.100428","url":null,"abstract":"<div><div>This study investigates experimental and finite element (FE) analysis to examine the effect of geogrid reinforcement for unpaved sections with weak subgrade. The experimental results of 47 static plate load tests performed at the Louisiana Research Transportation Center indicated a permanent deformation reduction, from 8% to 50%, by inserting geogrid as a reinforcement layer. The finite element simulations confirmed these results by demonstrating improved stress distribution and reduction in vertical permanent deformation. Geogrid installed at the upper one-third of the base layer performed better than other configurations and provided maximum settlement reduction and better load-bearing capacity. The results indicated that optimal reinforcement arrangements could reduce settlement by as much as 50% and elevate the bearing capacity ratio (BCR) to a maximum of 2.2. The results illustrate the importance of reinforcing modulus, placement depth, and base course thickness in enhancing the performance of unpaved road systems. A parametric study for unpaved finite elements was performed, including geosynthetic tensile modulus, placement depth, subgrade strength, number of layers, and base course thickness. The highest performance was RS580i (2000 kN/m), which reduced settling by 50% and had a BCR in the range of 1.5–2.0. Geosynthetic in the base course's upper third maximizes single-layer reinforcement and reduces settlements by 50% and BCR to 1.4–1.8.</div></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"23 ","pages":"Article 100428"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385207","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Influence of cement addition on wetting-drying cycles, compressive strength and tensile strength of high plastic alluvial soil 水泥掺量对高塑性冲积土干湿循环、抗压强度和抗拉强度的影响

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2026-02-12 DOI: 10.1016/j.treng.2026.100427

Bikash Kumar Sah , Shiv Shankar Kumar

{"title":"Influence of cement addition on wetting-drying cycles, compressive strength and tensile strength of high plastic alluvial soil","authors":"Bikash Kumar Sah , Shiv Shankar Kumar","doi":"10.1016/j.treng.2026.100427","DOIUrl":"10.1016/j.treng.2026.100427","url":null,"abstract":"<div><div>High plastic alluvial soils severely affect the performance and stability of civil engineering structures, such as road subgrade, foundations, dam, and embankment, during seasonal variations. This paper presents a comprehensive study on pH, Atterberg’s limit, compaction behavior [Maximum dry density (MDD) and Optimum Moisture Content (OMC)], strength characteristics [California Bearing Ratio (CBR), Unconfined Compression Strength (UCS) and Indirect Tensile Strength (ITS)], durability (wetting-drying cycles), elastic modulus (E<sub>s</sub>), and volumetric shrinkage characteristics along with microstructural analysis of cement blended High Plastic Alluvial (HPA) soil, at different percentage of cement content (1%, 3%, 5%, 7%) and curing conditions (i.e., moist and submerged). Experimental investigation confirms that CBR increased from 1.7% to 57.8% (on 4 days of soaking) and to 68.6% (on 10 days of soaking); whereas, E<sub>s</sub> was found to be 147.81 MPa and 155.52 MPa with 3% cement, respectively, which are in the range of effective subgrade’s E<sub>s</sub> = 133–167 MPa as per IRC: SP-37[<span><span>1</span></span>]. UCS and ITS also found to be significantly affected by the addition of cement at different curing period (1, 7, 14, and 28 days). After exposure of 6th wetting-drying cycles, the treated soil with 7% cement, exhibits a UCS loss of 17.5% and 13.89% corresponding to 7 days and 28 days curing conditions. A considerable reduction in volumetric shrinkage was noticed at 5% cement content. Moreover, to make an economical subgrade with minimal use of cement (i.e., 5%), other additives such as industrial wastes and fibers can be implemented to fulfill the criterion of 12th or higher wetting-drying cycles.</div></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"23 ","pages":"Article 100427"},"PeriodicalIF":0.0,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147385315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy consequences of separating velocity planning and torque distribution in overactuated electric vehicles 过驱动电动汽车速度规划与扭矩分配分离的能量后果

Transportation Engineering Pub Date : 2026-03-01 Epub Date: 2025-12-30 DOI: 10.1016/j.treng.2025.100419

Juliette Torinsson , Mats Jonasson , Derong Yang , Bengt Jacobson , Toheed Ghandriz

引用次数: 0