Transportation Engineering最新文献_第10页

Modeling of a power consumption by bus in the real operating conditions 母线在实际运行条件下的功耗建模

Transportation Engineering Pub Date : 2023-11-04 DOI: 10.1016/j.treng.2023.100216

Valerii Dembitskyi, Vitalij Grabovets

{"title":"Modeling of a power consumption by bus in the real operating conditions","authors":"Valerii Dembitskyi, Vitalij Grabovets","doi":"10.1016/j.treng.2023.100216","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100216","url":null,"abstract":"<div><p>In spite of numerous researches concerning a power consumption by the vehicles, during everyday operation there are the significant deviations from the consumptions indicated by the factories-manufacturers. It is caused by a great number of different factors, the main part of which take the operating conditions. In order to determine the power consumption of a vehicle in real operating conditions, it is necessary to solve a difficult problem with many unknowns. While making the investigations, the authors have used a multi-criteria approach that takes into consideration the guided, unguided and conditionally guided factors that influence the vehicles power consumption. The in research work approach provides a modeling of a power consumption by the vehicles with a simultaneous changeability of factors in the determined limits. The researches were made on a base of Т70110 trolleybus. There was made an investigation of influence of every factor on a power consumption, in addition to that there were made 7000 simulations, on the base of which, using a law of large numbers, there were found the corresponding changeability ranges. During the researches there were made 122 simulations of a power consumption, as a result of which there was determined an area of values of a power consumption.</p><p>The obtained theoretical results are very well correlated with the experimental data, and a deviation is equal to 3…6 % for normal operating conditions. A comparison of the received data of a power consumption with the researches results, obtained by another researchers, also shows a great convergence.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100216"},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666691X23000568/pdfft?md5=7ff88086af9d00b84ece705fdd0b604e&pid=1-s2.0-S2666691X23000568-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134656496","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Addressing last-mile delivery challenges by using euclidean distance-based aggregation within spherical Fuzzy group decision-making 在球形模糊群决策中使用基于欧几里得距离的聚合来解决最后一英里交付的挑战

Transportation Engineering Pub Date : 2023-11-02 DOI: 10.1016/j.treng.2023.100212

Sarbast Moslem, Francesco Pilla

{"title":"Addressing last-mile delivery challenges by using euclidean distance-based aggregation within spherical Fuzzy group decision-making","authors":"Sarbast Moslem, Francesco Pilla","doi":"10.1016/j.treng.2023.100212","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100212","url":null,"abstract":"<div><p>Optimal location selection plays a crucial role in enhancing logistic performance and addressing inefficiencies in last-mile delivery. Parcel lockers have emerged as an efficient solution in this regard. In the context of optimizing last-mile logistics in Dublin, Ireland, this research strives to identify the ideal locations for parcel lockers. It does so by pioneering the application of a unique decision-making model. To navigate the inherent uncertainties in decision-makers' preferences, the study harnesses the power of the Analytic Hierarchy Process (AHP) in Spherical Fuzzy environment with the Euclidean Distance-Based Aggregation Method (EDBAM) for the selection of parcel locker locations. The harmonious integration of these methodologies serves to mitigate the deterministic shortcomings typically associated with the AHP approach, presenting an innovative and robust solution for enhancing last-mile delivery efficiency. The outcomes of this research will provide valuable insights to policymakers in making informed strategic decisions regarding the selection of parcel locker locations in Dublin City.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100212"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666691X23000520/pdfft?md5=71867218a74fed6507a36fe25a18f3a1&pid=1-s2.0-S2666691X23000520-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92045624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Could high RAP mixtures be multi-recycled? Validation through long-term performance assessment 高RAP混合物可以多次回收吗?通过长期绩效评估进行验证

Transportation Engineering Pub Date : 2023-11-02 DOI: 10.1016/j.treng.2023.100215

V. Antunes , J. Neves , A.C. Freire

{"title":"Could high RAP mixtures be multi-recycled? Validation through long-term performance assessment","authors":"V. Antunes , J. Neves , A.C. Freire","doi":"10.1016/j.treng.2023.100215","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100215","url":null,"abstract":"<div><p>Reclaimed Asphalt Pavement (RAP) multi-recycling is a step forward in the circular economy by the reuse of materials in successive phases of the life cycle of infrastructures without downgrading their functionality. RAP application continues to be faced with some challenges and barriers that are yet to be overcome to enable its widespread use mainly for rates up to 100 %. With the increment of RAP mixtures use, the multi-recycling capacity will be a near future problem. This paper assessed the multi-recycling capacity of RAP in high incorporation rate (75 %) mixture for wearing courses, before and after ageing, using two recycling cycles. Both the short- and long-term performances of RAP mixtures were evaluated by mechanical and functional tests. In general, the second recycled RAP mixture showed similar or higher performance than the virgin asphalt mixture. It showed a 23 % lower stiffness modulus, a 37 % higher fatigue resistance and 62 % lower permanent deformation than virgin asphalt mixture. Moreover, it presented non-sensitivity to water damage and good functional performance. The RAP multi-recycling capacity was validated. Further studies can be developed for other types of asphalt mixtures.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100215"},"PeriodicalIF":0.0,"publicationDate":"2023-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666691X23000556/pdfft?md5=5e15755e7fec77058675231986b447df&pid=1-s2.0-S2666691X23000556-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92045627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental development and evaluation of a fiber bragg grating-based outside air temperature sensor for aircraft applications 基于光纤光栅的飞机外部空气温度传感器的实验研制与评价

Transportation Engineering Pub Date : 2023-11-01 DOI: 10.1016/j.treng.2023.100214

Carlo Giovanni Ferro, Alessandro Aimasso, Matteo Bertone, Nicolò Sanzo, Matteo Davide Lorenzo Dalla Vedova, Paolo Maggiore

{"title":"Experimental development and evaluation of a fiber bragg grating-based outside air temperature sensor for aircraft applications","authors":"Carlo Giovanni Ferro, Alessandro Aimasso, Matteo Bertone, Nicolò Sanzo, Matteo Davide Lorenzo Dalla Vedova, Paolo Maggiore","doi":"10.1016/j.treng.2023.100214","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100214","url":null,"abstract":"<div><p>This study presents the development and rigorous evaluation of a Fiber Bragg Grating (FBG)-based Outside Air Temperature (OAT) sensor designed for aircraft applications. Employing a Design of Experiments (DoE) approach, the research optimized the sensor's performance for reliability, accuracy, and durability in aviation environments. Experimental assessment covered detailed installation of the FBG sensor on an aircraft, considering influential parameters such as outside dimensions and varying temperature. The OAT sensor's design focused on robustness and precision for accurate real-time temperature recording, vital for operational efficiency and safety. Extensive statistical analysis assessed the sensor's performance under differing conditions, providing valuable insights into operational capabilities and overall efficacy. Thermo-climatic chamber tests simulated extreme environmental conditions to validate the sensor's durability and function under potential aircraft operational scenarios. This research enhances understanding of FBG-based OAT sensors for aircraft applications, demonstrating their superior robustness and performance capabilities, thereby contributing to aviation safety, operational efficiency, and data precision.</p><p>© 2017 Elsevier Inc. All rights reserved.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100214"},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666691X23000544/pdfft?md5=d0aa6148b7fd86db713c8af623583165&pid=1-s2.0-S2666691X23000544-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92045623","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of the influence of interface bonding condition on mechanical responses of bituminous pavement surface layers 界面粘结条件对沥青路面表层力学响应影响的评价

Transportation Engineering Pub Date : 2023-10-31 DOI: 10.1016/j.treng.2023.100211

Marina Al Bacha , Pierre Hornych , Mai-Lan Nguyen , Olivier Chupin , Ferhat Hammoum

{"title":"Evaluation of the influence of interface bonding condition on mechanical responses of bituminous pavement surface layers","authors":"Marina Al Bacha , Pierre Hornych , Mai-Lan Nguyen , Olivier Chupin , Ferhat Hammoum","doi":"10.1016/j.treng.2023.100211","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100211","url":null,"abstract":"<div><p>Roads play a crucial role in the socio‐economic development of a region, providing a means of transportation for people and goods. However, traffic loads, weather conditions, and other factors can lead to damage of road pavements, especially of the surface layer over time. One important factor affecting the response of surface layers under traffic loading is the bonding condition between asphalt layers. In this paper, the aim is to analyze the strains at the base of surface layers in asphalt pavement structures with two different bonding conditions: one with a tack coat and one without tack coat. To achieve this, experimental measurements on full-scale pavement tests and numerical calculations in viscoelasticity are carried out. Calculations are performed using three interface models: bonded interface, sliding interface and thin elastic interface. The findings show that structures with a tack coat exhibit significant sliding at the interface. Moreover, the use of a bonded interface in design methods cannot predict correctly the measurements. In addition, the study shows that taking into account temperature gradients in the pavement structure improves significantly measurement prediction, especially at high temperatures.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100211"},"PeriodicalIF":0.0,"publicationDate":"2023-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666691X23000519/pdfft?md5=e7327aa9eddb17bcfaa7bc4a9cd3d03f&pid=1-s2.0-S2666691X23000519-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92045626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Drivers’ perception of highway work zone risks 驾驶员对高速公路工作区域风险的认知

Transportation Engineering Pub Date : 2023-10-30 DOI: 10.1016/j.treng.2023.100213

Fadi Shahin , Wafa Elias , Tomer Toledo

{"title":"Drivers’ perception of highway work zone risks","authors":"Fadi Shahin , Wafa Elias , Tomer Toledo","doi":"10.1016/j.treng.2023.100213","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100213","url":null,"abstract":"<div><p>Highway work zones lead to an increase in crash risk. The goal of this research is to study drivers’ risk perception to mitigate these risks. A questionnaire was used to study drivers’ risk perception on typical highway work zone attributes (e.g., geometric changes, temporary traffic countermeasures, excessive speed). The results were compared with crash modification factors. A factor analysis was conducted to find the underlying latent variables behind these risk perceptions. Moreover, the connection between drivers’ personal characteristics and their risk perception was studied using linear regression. Lastly, to study the association between drivers’ risk perception and their driving speed, the questionnaire results were incorporated into a controlled experiment in a driving simulator that studied highway work zones effect on speed. A linear mixed-effects model was used to capture this association. The results reveal the most dangerous highway work zone attributes and the best mitigation ones perceived by drivers. Participants that drove more frequently through work zones drove at a higher speed in the driving simulator and the higher the perceived risk by the drivers the lower their speed. Male drivers have a lower perceived risk. These results can aid decision-makers in choosing safer highway work zone layout operations considering drivers’ risk perception. Also, increasing the awareness of highway work zone risks will lead to safer work zones.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100213"},"PeriodicalIF":0.0,"publicationDate":"2023-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666691X23000532/pdfft?md5=8991d5d72a845cf65eb69b25022cb8d5&pid=1-s2.0-S2666691X23000532-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92045622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An electric road system or big batteries: Implications for UK road freight 电动道路系统或大电池:对英国公路货运的影响

Transportation Engineering Pub Date : 2023-10-24 DOI: 10.1016/j.treng.2023.100210

Christopher de Saxe , Daniel Ainalis , John Miles , Philip Greening , Adam Gripton , Christopher Thorne , David Cebon

{"title":"An electric road system or big batteries: Implications for UK road freight","authors":"Christopher de Saxe , Daniel Ainalis , John Miles , Philip Greening , Adam Gripton , Christopher Thorne , David Cebon","doi":"10.1016/j.treng.2023.100210","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100210","url":null,"abstract":"<div><p>An Electric Road System (ERS)—comprising a network of overhead cables to charge Heavy Goods Vehicles (HGVs) via a pantograph pick-up—is a cost-competitive solution to rapidly decarbonise the UK road freight sector. A major benefit over conventional battery electric HGVs is the reduction in battery capacities needed to fulfil logistics needs. In this study, we develop a detailed vehicle simulation model and use it to calculate the battery capacity requirements of real UK logistics journeys against a range of ERS network sizes and on-route static charging options. The results show that, averaged over all static charging scenarios, ERS reduces battery sizes by 41 %, 62 %, and 75 % for the ‘Light’ (2,750 km), ‘Medium’ (5,500 km) and ‘Heavy’ (8,500 km) ERS scenarios. Of the static charging scenarios, drop-off charging is shown to be more effective than rest stop charging at reducing battery sizes.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100210"},"PeriodicalIF":0.0,"publicationDate":"2023-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2666691X23000507/pdfft?md5=b2529ad72b46121ebe5a4c4d923a3024&pid=1-s2.0-S2666691X23000507-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"92045625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eigenvalue-based approach for buckling analysis of metre gauge railway tracks incorporating train load effects 考虑列车荷载影响的米轨轨道屈曲分析的特征值方法

Transportation Engineering Pub Date : 2023-10-14 DOI: 10.1016/j.treng.2023.100209

Sorawish Machan , Siriwan Tangwongwan , Pimsuda Chuadchim , Chayut Ngamkhanong

{"title":"Eigenvalue-based approach for buckling analysis of metre gauge railway tracks incorporating train load effects","authors":"Sorawish Machan , Siriwan Tangwongwan , Pimsuda Chuadchim , Chayut Ngamkhanong","doi":"10.1016/j.treng.2023.100209","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100209","url":null,"abstract":"<div><p>Railway track buckling is a significant concern that can jeopardise train operations and passenger safety. This paper presents a comprehensive buckling analysis of railway tracks using Eigenvalue-based simplified approach in the finite element method, while considering the influence of passing trains. The study focuses on evaluating the buckling behaviour of the track, taking into account dynamic response and the interaction between the train and track. The finite element model encompasses the track structure, including rails, sleepers, ballast, and fasteners, and incorporates material properties, geometrical constraints, and boundary conditions. Through eigenvalue analysis, critical buckling modes and corresponding buckling loads are determined, providing insights into the track's stability under different loading scenarios. Furthermore, a parametric study is conducted to investigate the effects of various factors such as unconstrained length, lateral resistance and rail sections on the buckling behaviour. This study enhances the understanding of buckling phenomena in railway tracks and offers valuable information for track design, maintenance, and safety considerations. The findings contribute to improving the resilience and reliability of railway track systems, ultimately ensuring safe and efficient train operations.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100209"},"PeriodicalIF":0.0,"publicationDate":"2023-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49714511","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

Macroscopic traffic characterization based on driver memory and traffic stimuli 基于驾驶员记忆和交通刺激的宏观交通表征

Transportation Engineering Pub Date : 2023-10-14 DOI: 10.1016/j.treng.2023.100208

Zawar H. Khan , Waheed Imran , T. Aaron Gulliver , Khurram S. Khattak , Ghayas Ud Din , Nasru Minallah , Mushtaq A. Khan

引用次数: 0

Vision-based investigation of road traffic and violations at urban roundabout in India using UAV video: A case study 利用无人机视频对印度城市环岛道路交通和违规行为进行基于视觉的调查:案例研究

Transportation Engineering Pub Date : 2023-10-08 DOI: 10.1016/j.treng.2023.100207

Yagnik M Bhavsar , Mazad S Zaveri , Mehul S Raval , Shaheriar B Zaveri

{"title":"Vision-based investigation of road traffic and violations at urban roundabout in India using UAV video: A case study","authors":"Yagnik M Bhavsar , Mazad S Zaveri , Mehul S Raval , Shaheriar B Zaveri","doi":"10.1016/j.treng.2023.100207","DOIUrl":"https://doi.org/10.1016/j.treng.2023.100207","url":null,"abstract":"<div><p>In the past decade, the number of vehicles in India has increased exponentially; however, road infrastructure has not scaled proportionately. As a result, road traffic problems such as congestion on urban roads, dangerous traffic violations, and road accidents have increased significantly. Due to limited road infrastructure, traffic violations (human errors) have intensified in densely populated urban areas. This paper presents a case study (at a multi-lane urban roundabout in Ahmedabad city, India) and the methodology based on computer vision to investigate road traffic and violations using drone/UAV-based aerial video. You Only Look Once-YOLOv7 is used for vehicle detection, and Simple Online and Real Time Tracking-SORT for tracking vehicles. Our methodology divides the road scene (roundabout) into certain zones. We then formulated the dictionary, which maps the traffic violations under Motor Vehicle Driving Regulations - MVDR/ Motor Vehicle Act - MVA and the movement of the vehicle (zone traversal sequences). Using the zone-based methodology, we could also probe other road traffic data such as the count of vehicles, speed of vehicles, rate of traffic flow, and congestion. Based on our results, we also infer some of the possible causes of traffic violations in terms of problems/limitations of road infrastructure. As per our analysis, around 23.26% of vehicles committed traffic violations. We detected traffic violations related to lane indiscipline, driving against the authorized flow of traffic, parking violations, and over-speeding within the roundabout. Our methodology of investigating road traffic and violations can be used for road infrastructure improvement, law enforcement drives, and policy making, for road traffic safety, in developing and densely populated countries.</p></div>","PeriodicalId":34480,"journal":{"name":"Transportation Engineering","volume":"14 ","pages":"Article 100207"},"PeriodicalIF":0.0,"publicationDate":"2023-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49714107","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