{"results":[{"id":"doaj_10.36100/dorogimosti2025.32.035","title":"Peculiarities of calculating fuel consumption rates for machinery and equipment","authors":[{"name":"Liudmyla Parasiuk"},{"name":"Serhii Illiash"},{"name":"Tetiana Stasiuk"},{"name":"Yulia Makovska"}],"abstract":"Introduction. The article considers the features of calculating fuel consumption rates for machines and mechanisms. The main methods for determining fuel rates are analyzed, the influence of technical, operational and external factors is taken into account, and the environmental component is considered, in particular, the impact of fuel consumption on the environment and the use of SCR systems to reduce harmful emissions.\r\n\r\nThe rational use of fuel and energy resources is one of the key tasks in the field of operation of vehicles and road construction equipment. An important role in this process is played by modern methods of assessing fuel consumption and the use of selective catalytic neutralization (SCR) systems, which allow reducing harmful emissions. To achieve maximum fuel efficiency, it is necessary to take into account a wide range of factors that affect the operation of equipment.\r\n\r\nIssues. Calculating fuel consumption rates is a complex process due to the variety of factors that influence it. The main problems facing researchers and engineers are the great variability of equipment operating conditions (terrain relief, climatic conditions, soil type, etc.), the dependence of fuel consumption on the technical condition of machines, the control method and the level of process automation, the lack of a universal methodology that takes into account all aspects of the operation of different types of equipment, the need to develop effective algorithms for optimizing fuel consumption.\r\n\r\nPurpose. The purpose of the study is to analyze modern approaches to calculating fuel consumption rates, identify key factors affecting fuel consumption, and develop recommendations for optimizing the use of fuel resources in mechanical engineering and the transport sector.\r\n\r\nMaterials and methods. The article is of a review nature. The article uses a systematic approach, which is a set of general scientific methodological principles (requirements), based on the consideration of objects as systems.","source":"DOAJ","year":2025,"language":"","subjects":["Highway engineering. Roads and pavements"],"doi":"10.36100/dorogimosti2025.32.035","url":"http://dorogimosti.org.ua/en/udoskonalennya-metodichnih-pidhodiv-do-rozrahunku-norm-vitrat-paliva-na-mashini-i-mehanizmi","is_open_access":true,"published_at":"","score":69},{"id":"doaj_10.35117/A_ENG_25_05_01","title":"ACC AND ACC+ systems and their impact on improving road traffic safety","authors":[{"name":"Sebastian Cisowski"}],"abstract":"\n    Abstract: The development of modern driver assistance systems, such as Adaptive Cruise \nControl (ACC) and its enhanced version ACC+, represents a significant step towards \nimproving road safety. This article analyzes the operation of these systems in the context of \nthe causes and effects of traffic accidents. Based on the reconstruction of a specific traffic \nincident, a detailed assessment of the impact of ACC and ACC+ on traffic safety was \nconducted. The study is based on the analysis of measurable technical parameters that change \nunder varying road conditions, both with the systems activated and deactivated. \nThe paper also discusses examples of preventive strategies for similar incidents, utilizing new \ntechnologies applied in modern vehicles. Particular attention is given to differences in vehicle \nbehavior under various operational scenarios of ACC and ACC+ systems, with a focus on \ntheir impact on the safety of road users. This article contributes to the development of \nknowledge on minimizing accident risks through advanced driver assistance systems. \n\n \n\nKeywords: ACC; ACC+; Safety; Traffic","source":"DOAJ","year":2025,"language":"","subjects":["Highway engineering. Roads and pavements","Bridge engineering","Railroad engineering and operation","Building construction"],"doi":"10.35117/A_ENG_25_05_01","url":"https://www.transportation.overview.pwr.edu.pl/UPLOAD/BAZA-ARTYKULOW/ENG/2025/05/A_ENG_25_05_01.pdf","is_open_access":true,"published_at":"","score":69},{"id":"doaj_10.7250/bjrbe.2025-20.661","title":"Modernising the DS3 Locomotive for AC/DC Dual-System Operation: Cross-Border Interoperability at EU-Ukraine Interfaces","authors":[{"name":"Pavlo Holoborodko"},{"name":"Darius Bazaras"},{"name":"Aldona Jarašūnienė"}],"abstract":"\nThe analysed research question raises the problem of modernisation of technical specifications of the locomotive on electric traction. The authors of the scientific research consider the modernisation of the DS3 locomotive with the transition from a single-phase (25 kV 50 Hz AC) to a two-phase (25 kV 50 Hz AC/3 kV DC) power supply system, which aims to increase interoperability with neighbouring railway networks. A multi-level literature review has been carried out, transient and dynamic characteristics have been modelled in MATLAB, and the principles of control of traction converters and motors have been formulated. Ensuring stable operating modes when switching power systems is confirmed by optimal attenuation ζ ≈ 0.7, and the electromagnetic compatibility analysis has revealed characteristic interference of 500–3000 Hz, thus allowing us to propose filters in accordance with EN 50121. The radar graph of the comparative analysis provides an improvement in the main metrics (power, traction efforts, efficiency, and reaction time) in the context of an ideal 100% scale. A step-by-step roadmap for the functional compatibility of ERTMS / ETCS and GSM-R in the Siemens SIBAS 32 platform has been designed and technical conditions for certification according to TSI and EN standards have been formed. The modernisation of DS3 is recognised as technically feasible, cost-effective and compliant with international technical aspects, which ensures prospects for joint operation in Ukraine and the EU.\n","source":"DOAJ","year":2025,"language":"","subjects":["Highway engineering. Roads and pavements","Bridge engineering"],"doi":"10.7250/bjrbe.2025-20.661","url":"https://bjrbe-journals.rtu.lv/bjrbe/article/view/882","is_open_access":true,"published_at":"","score":69},{"id":"ss_e4343a96c31f9a9847553d0f44ead06a502d856c","title":"Quality Of Construction Materials And Their Effects On The Sustainability Of Highway Pavements In Parts Of Anambra State, Southeastern Nigeria","authors":[{"name":"Eunice Ogochukwu Okeke"},{"name":"Okechukwu Pius Aghamelu"},{"name":"Olufemi Victor Omonona"},{"name":"Chinaza Christine Ozougwu"}],"abstract":"Construction of any sustainable road requires the determination of engineering properties of the materials to be used in the project. In this work, the impact of the construction materials used in some parts on Anambra State (southeastern Nigeria) with significant road pavement failure rate is investigated. Soil and aggregate samples were collected in situ on some failed spots on major roads in the state and were subjected to standard laboratory analyses. The results indicated that the roads were constructed on sandy subgrades with gravel-sized particles that ranged from 0 – 43 %, sand 25 – 77 %, and fines 14 – 63 %. The liquid limit of the subgrade materials ranged from 27 – 44 %, plasticity index 10 – 24 %, while the linear shrinkage ranges from 8 – 11 %. These Atterberg limit results denote low to moderate expandable soils. Maximum dry density ranged between 1.93 - 2.20 Mg/m3, while optimum moisture content ranged from 6.78 to 15.9%. The California bearing ratio (CBR), on the other hand, ranged between 60 – 161 %, for unsoaked condition, and 17.8 %, for soaked condition, indicating fairly stable materials. Based on the American Association of State Highway and Transportation Officials (AASHTO) classification system, the subgrade samples classify mainly as A-2-6 soil or as CL according to the Unified Soil Classification System (USCS). The particle density value ranges from 2.35 - 2.71 Mg/m3, while the field relative compaction density ranges between 89 – 108 %. Analysis on the sub base and base course aggregates indicated bulk density of fine aggregate (sand) that ranged from 0.16 - 1.68 Mg/m3. Comparison of the results with an engineering standard revealed that the materials did not meet standard limits(FMW\u0026H), hence, the failure recorded on the paved roads. Water inflow would result in subgrade material expansion, hence, stability and bearing capacity reduction. ANOVA test result indicates significant variable from the data source while principal component and correlation analyses suggests that moisture content, liquid limit and plasticity index have direct statistical relationships. This research therefore advocates proper drainage design and stabilization of the subgrade materials in the area during road construction.","source":"Semantic Scholar","year":2025,"language":"en","subjects":null,"doi":"10.4314/gjgs.v23i1.3","url":"https://www.semanticscholar.org/paper/e4343a96c31f9a9847553d0f44ead06a502d856c","is_open_access":true,"published_at":"","score":69},{"id":"ss_5fb93d20fed139e3182e42db7ce9ee017a0ba345","title":"Resilient roads in challenging terrain: a case study of Siddhartha highway in Nepal","authors":[{"name":"Nishesh P. Chhetri"},{"name":"Rishav Jaiswal"},{"name":"Rabina Poudel"}],"abstract":"Nepal is a country known for its diverse and challenging topography, and it relies heavily on a robust road infrastructure network to connect its remote regions and urban centers. This study addresses the critical need for enhanced road safety and infrastructure resilience on the Siddhababa road section of the Siddhartha Highway, Nepal, notorious for its high accident rates and susceptibility to landslides. Given the road's strategic importance in connecting remote regions and its challenging topographical conditions, our research aimed to identify the most suitable pavement type to mitigate these issues. Through a detailed examination incorporating eight different soil tests, alongside evaluations of traffic loads, weather conditions, and existing pavement performance, we adopted a comparative analysis methodology to assess the viability of flexible versus rigid pavements within this unique context. Results revealed that the soil composition and environmental conditions of the Siddhababa section significantly influence pavement performance, with specific gravity, moisture content, and California Bearing Ratio (CBR) tests indicating a nuanced suitability for both pavement types under varying circumstances. Our analysis concluded that, despite the economic and staged reinforcement benefits of flexible pavements, the durability, safety, and maintenance considerations favor the adoption of rigid pavement for the Siddhababa road section. However, acknowledging the economic constraints, a hybrid approach is recommended, emphasizing rigid pavements for the most vulnerable sections and flexible pavements elsewhere. This study contributes to the pavement engineering field by providing a model for pavement type selection in mountainous regions, aiming to enhance road safety and durability amidst challenging environmental conditions.","source":"Semantic Scholar","year":2024,"language":"en","subjects":null,"doi":"10.1007/s44290-024-00079-7","url":"https://www.semanticscholar.org/paper/5fb93d20fed139e3182e42db7ce9ee017a0ba345","pdf_url":"https://doi.org/10.1007/s44290-024-00079-7","is_open_access":true,"citations":2,"published_at":"","score":68.06},{"id":"doaj_10.36100/dorogimosti2024.30.013","title":"Conceptual framework for determining the effectiveness of tasks and measures implementation in state targeted development programs to improve road management efficiency","authors":[{"name":"Artem Bezuglyi"},{"name":"Bohdan Stasiuk"},{"name":"Nataliia Mudrychenko"},{"name":"Mykhailo Dulia"},{"name":"Taras Pechonchyk"}],"abstract":"Introduction. Effective functioning of road transport is only possible when the quantitative growth, quality level, and technical condition of roads meet the demands of road transport. This combination of road network characteristics can only be achieved with adequate funding to implement all planned works. Investments in road infrastructure can become a catalyst for economic recovery and growth, as they will improve logistics capabilities, reduce freight and passenger transportation costs, and enhance regional competitiveness.\r\n\r\nProblem Statement. In the first decades of independence, the road industry faced chronic underfunding, which negatively affected its development. The situation worsened with the full-scale military aggression of the Russian Federation in 2024. According to the World Bank's “Rapid Damage and Needs Assessment (RDNA3)” report, post-war recovery needs for public roads and bridges alone are estimated at around USD 28.8 billion. For the rapid and quality restoration and development of Ukraine, this issue is critically important, as the state of the roads affects transportation costs, prices, employment levels, and the overall pace of economic development. Furthermore, the full-scale invasion by the Russian Federation raises questions about ensuring reliable logistics routes, prompt transportation of humanitarian aid, and the country's defense capabilities.\r\n\r\nObjective. The aim of this research is to determine the key principles for socio-economic evaluation of state-level programmatic documents to improve road management efficiency.\r\n\r\nMaterials and Methods. The article uses a systematic (comprehensive) approach, which represents a set of general scientific methodological principles (requirements) based on considering objects as systems. A priority in this process is ensuring an adequate level of data objectivity, timeliness, and the relevance of processed information.\r\n\r\nIn addition, the article applies methods of comprehensive and systemic analysis, abstract-logical, graphical, statistical, computational-design, comparative analysis, and expert assessments.\r\n\r\nResults. A mathematical calculation was obtained for assessing the effectiveness of the State Targeted Economic Program for the Development of Public Roads of National Importance for 2018-2023.","source":"DOAJ","year":2024,"language":"","subjects":["Highway engineering. Roads and pavements"],"doi":"10.36100/dorogimosti2024.30.013","url":"http://dorogimosti.org.ua/files/upload/13-24_%D0%91%D0%B5%D0%B7%D1%83%D0%B3%D0%BB%D0%B8%D0%B9,%20%D0%A1%D1%82%D0%B0%D1%81%D1%8E%D0%BA%D0%91,%20%D0%9F%D0%B5%D1%87%D0%BE%D0%BD%D1%87%D0%B8%D0%BA,%20%D0%9C%D1%83%D0%B4%D1%80%D0%B8%D1%87%D0%B5%D0%BD%D0%BA%D0%BE%D0%9D,%20%D0%94%D1%83%D0%BB%D1%8F.pdf","is_open_access":true,"published_at":"","score":68},{"id":"doaj_10.7250/bjrbe.2024-19.634","title":"Estimating the Bitumen Ratio to be Used in Highway Asphalt Concrete by Machine Learning","authors":[{"name":"Muhammed Yasin Çodur"},{"name":"Halis Bahadir Kasil"},{"name":"Emre Kuşkapan"}],"abstract":"\nHot mix asphalt, which is frequently used in road pavements, contains bitumen in certain proportions. This bitumen ratio varies according to the layers in the road pavements. The bitumen ratio in each pavement is usually estimated by the Marshall design method. However, this method is costly as well as time-consuming. In this study, the Naive Bayes method, which is a machine learning algorithm, was used to estimate the bitumen ratio practically. In the study, a total of 102 asphalt concrete designs were examined, which were taken from the wearing course, binder course, and asphalt concrete base course and stone mastic asphalt wearing course layers. Each road pavement layer was divided into three different classes according to the bitumen ratios and the algorithm was trained with machine learning. Then the bitumen ratio was estimated for each data set. As a result of this process, the bitumen ratios of the layers were estimated with an accuracy between 75% and 90%. In this study, it was revealed that the bitumen ratio in the road pavement layers could be estimated practically and economically.\n","source":"DOAJ","year":2024,"language":"","subjects":["Highway engineering. Roads and pavements","Bridge engineering"],"doi":"10.7250/bjrbe.2024-19.634","url":"https://bjrbe-journals.rtu.lv/bjrbe/article/view/754","is_open_access":true,"published_at":"","score":68},{"id":"ss_0f7ad42e5f3551c21688b59da8022f20859bbce7","title":"A Review on Stabilization of Granular Subbase in Flexible Pavement by using Calcium Chloride","authors":[{"name":"Er. Vikash Sharma"}],"abstract":"Highways plays a vital role in the development and progress of any nation, which provides them access to the resources and interconnection between countries, states and cities. India is known to have one of largest highway network in the world, which transports approximately 64.5% of goods all over the country and 90% traffic passengers of the country, who uses this network to commute. The total expenditure allocated by the Ministry of Road Transport and Highways for 2023-2024 is Rs. 2.7 lakh crores, which is 36% higher than 2022-2023(1.99 lakh crores). All we need now a day is the economical and engineering approach technique to enhance durability and life of the existing roads/ highways. This study is a review of application of stabilizers for Granular Sub Base of Flexible Pavements. The main objective of this study to determine Unconfined Compressive Strength, Elastic Modulus of stabilized material prepared with different dose of calcium chloride as a stabilizer for use in Cement Treated Sub Base (CTSB), determine optimum dose of CaCl2 Stabilizers with or without cement to achieve desired strength of Cement Treated Sub Base (CTSB) and to determine the durability characteristics of the samples prepared at optimum dose. This paper deduces that many researchers used different stabilizers such as pumice, fly-ash, lime stabilized fly-ash, combined cement and bitumen emulsion, which were found suitable and effective to achieve required strength for the flexible pavements","source":"Semantic Scholar","year":2024,"language":"en","subjects":null,"doi":"10.22214/ijraset.2024.65901","url":"https://www.semanticscholar.org/paper/0f7ad42e5f3551c21688b59da8022f20859bbce7","is_open_access":true,"published_at":"","score":68},{"id":"doaj_10.35117/A_ENG_23_09_10_04","title":"The use of balustrades on bridges in the light of applicable regulations","authors":[{"name":"Michał Żochowski"}],"abstract":"\n    Abstract: The author presented the legal status in relation to the use of balustrades on bridges. \nThe analysis presented regulations on technical conditions on bridges and regulations on \noccupational health and safety. The article attempts to carry out the analysis in such a way that \nthe conclusions are universal and can be applied to all types of objects. It has been shown that \nthe balustrades are an element which protects against falling from a height. This type of \ncollective protection elements should be used when there is a risk of falling from a height. \n\n \n\nKeywords: Balustrade, Bridge, Safety","source":"DOAJ","year":2023,"language":"","subjects":["Highway engineering. Roads and pavements","Bridge engineering","Railroad engineering and operation","Building construction"],"doi":"10.35117/A_ENG_23_09_10_04","url":"https://www.transportation.overview.pwr.edu.pl/UPLOAD/BAZA-ARTYKULOW/ENG/2023/09/A_ENG_23_09_10_04.pdf","is_open_access":true,"published_at":"","score":67},{"id":"doaj_10.35117/A_ENG_22_06_02","title":"Responsibility of the operator for the operation of the unmanned aerial vehicle - selected issues","authors":[{"name":"Agnieszka Fortońska"}],"abstract":"         Abstract: The article presents the issue of responsibility for the use of unmanned aerial  vehicles. As part of the study, selected domestic and foreign regulations will be analyzed. The  author will present selected legal regulations of the European Union Member States: Poland  and Croatia. Moreover, the laws of Canada and the United States will be discussed.      Keywords: Drone; Civil liability; Criminal Liability","source":"DOAJ","year":2022,"language":"","subjects":["Highway engineering. Roads and pavements","Bridge engineering","Railroad engineering and operation","Building construction"],"doi":"10.35117/A_ENG_22_06_02","url":"http://www.transportation.overview.pwr.edu.pl/UPLOAD/BAZA-ARTYKULOW/ENG/2022/06/A_ENG_22_06_02.pdf","is_open_access":true,"published_at":"","score":66},{"id":"ss_cd94e7eaf231d23398081f39aa0bb1d3c8df92a2","title":"Effect of metakaolin-based geopolymer concrete on the length of rigid pavement slabs","authors":[{"name":"M. Eisa"},{"name":"M. Basiouny"},{"name":"E. A. Fahmy"}],"abstract":"","source":"Semantic Scholar","year":2021,"language":"en","subjects":null,"doi":"10.1007/s41062-021-00465-5","url":"https://www.semanticscholar.org/paper/cd94e7eaf231d23398081f39aa0bb1d3c8df92a2","is_open_access":true,"citations":21,"published_at":"","score":65.63},{"id":"doaj_10.31849/siklus.v7i1.6060","title":"Pengaruh Penetration Index Terhadap Karakteristik  Marshall Laston Menggunakan Limbah Styrofoam dan PVC","authors":[{"name":"Ratna Yuniarti"},{"name":"I Dewa Made Alit Karyawan"}],"abstract":"The performance of road pavement is strongly determined by material used in asphalt mixture. However, it is occasionally found that asphalt used in hot mix asphalt did not fulfill softening point requirement. On the other hand, the amounts of waste styrofoam and PVC are tend to increase and need a large space for its handling. Therefore, it is necessary to improve the quality of asphalt by using waste styrofoam and PVC. This article aims to review the performance of asphalt concrete using waste styrofoam and PVC as asphalt modifier based on the value of its penetration index. Styrofoam modified asphat was made by mixing asphalt penetration grade 60/70 with 0%, 2%, 4% and 6% waste styrofoam, meanwhile the percentages of waste PVC as asphalt modifier were 1%, 2%, 3% and 4%, respectively. The properties analyzed are Marshall stabiliy, flow, Marshall Quotient, Marshall immersion and retained strength index. From the analysis, it can be concluded that the use of waste styrofoam and PVC increase modified asphalt penetration index, and its penetration index significantly affect the properties of asphalt concrete","source":"DOAJ","year":2021,"language":"","subjects":["Highway engineering. Roads and pavements","Engineering (General). Civil engineering (General)"],"doi":"10.31849/siklus.v7i1.6060","url":"https://journal.unilak.ac.id/index.php/SIKLUS/article/view/6060","is_open_access":true,"published_at":"","score":65},{"id":"ss_779176c1702175408a9dc56eff75b4a11ad8bf44","title":"Quest for improving service life of asphalt roads","authors":[{"name":"M. Partl"}],"abstract":"Selected results and initiatives in modern asphalt pavement research for increasing service life of asphalt pavements under the aspect of sustainability and multifunctional use of roads are summarized. Focus lies on innovative approaches and own experience, jointly elaborated during the last decades within the road engineering/sealing components lab at Empa and both the highway/railways engineering and building materials group at KTH. This includes material concepts and design as well as pavement system and construction aspects from an experimental and modelling point of view. It includes also the application of powerful experimental and computational tools, such as Atomic-Force-Microscopy (AFM), X-Ray-Computer-Tomography (CT), Digital-Imaging-Correlation (DIC) and Discrete-Element-Method (DEM). As for materials, recycling issues and the use of Phase-Change-Materials (PCM) or metallic ingredients for inductive thermal crack healing are addressed. In order to remind that material design must also account for the workability during the process of compaction, the new Compaction-Flow-Test (CFT) developed at KTH is shortly presented. Innovative ideas for structural material composition are also mentioned, such as “artificial aggregates” or “additive manufacturing”, being aware that there is still a long way to go. Regarding pavement systems, ideas for multifunctional road applications are proposed. Focus is also put on special issues, such as construction joints.","source":"Semantic Scholar","year":2020,"language":"en","subjects":["Engineering"],"doi":"10.21809/rilemtechlett.2019.102","url":"https://www.semanticscholar.org/paper/779176c1702175408a9dc56eff75b4a11ad8bf44","pdf_url":"https://letters.rilem.net/index.php/rilem/article/download/102/106","is_open_access":true,"citations":4,"published_at":"","score":64.12},{"id":"doaj_10.15517/iv.v21i37.32884","title":"Accesibilidad: Elemento Fundamental para la Ejecución de Infraestructura de Transporte.","authors":[{"name":"Jhair Andrés Manrique Bautista"},{"name":"Jose Carlos Jimenez Serpa"},{"name":"Miller Humberto Salas Rondón, Ph.D"}],"abstract":"El Área Metropolitana de Bucaramanga -AMB- presenta actualmente una situación crítica de movilidad generada por diferentes factores ya sean políticos, sociales o del territorio, por ende se hace necesario una metodología de inversión en términos de infraestructura vial que beneficien a la mayor cantidad de habitantes posibles. Con esta investigación se pretende informar, fortalecer, optimizar y mejorar las condiciones viales presentes en todo el territorio Colombiano, demostrardo que con un procedimiento de selección de proyectos viales en términos de tiempo, costo generalizado del viaje y optimización de los recursos públicos, se asegura un beneficio para la comunidad y no para un particular. La metodología utilizada fue basada en la determinación de índices de accesibilidad obtenidos de dos escenarios el actual, (hace referencia a la malla vial existente en AMB) y el futuro, (malla vial existente más los proyectos viales futuros) modelados por medio del software TransCad en el cual se obtuvieron malla vial futura que representaron ahorros en pesos colombianos de $4.365 millones (1,51 millones de USD).","source":"DOAJ","year":2020,"language":"","subjects":["Highway engineering. Roads and pavements"],"doi":"10.15517/iv.v21i37.32884","url":"https://revistas.ucr.ac.cr/index.php/vial/article/view/32884","is_open_access":true,"published_at":"","score":64},{"id":"ss_45820032107597a31479198bdee5afba06c3cde7","title":"Effect of Pavement Friction Factors on Skid Resistance of Highway Pavements using Prediction Models","authors":null,"abstract":"There are many features for road pavements, in which the most significant feature is skid resistance. Skid resistance is referred to as the contact (friction) among the pavement surface and automobile tires. Essentially, this feature is vital to guarantee adequate road secureness and it takes a fundamental part during specific climatic conditions. The aim of this research is targeted at distinguishing the primary attributes that impact skid resistance, so that the rates of traffic collisions that occur as a result of insufficient skid resistance specifically in wet climate conditions, are minimized. Throughout this research, designs to calculate the association of surface texture form, automobile velocity, tire type and the type of asphalt mixture on skid resistance were created and applied to evaluate the significance of each attribute as well as enhancing the secureness of roads. Hence, the attributes influencing skid resistance were chosen and evaluated utilizing the SPSS program. Also, the British Pendulum Skid Resistance Tester was utilized in order to evaluate the skid resistance of various surface textures. The outcomes obtained by this study proved that there is a strong association among surface texture, wheel form, type of mixture and automobile velocity, where R2 =96.5%. Moreover, the outcomes advocated the necessity of applying operating method designs to minimize duration and exertion as well as computing the influence of these attributes on skid resistance. The ingenuity of this research is in its concept which advocates that the manipulation of skid resistance operation method results in enhanced road security and minimizes collisions, which respectively diminishes fatality rates.","source":"Semantic Scholar","year":2019,"language":"en","subjects":null,"doi":"10.35940/ijitee.i8064.078919","url":"https://www.semanticscholar.org/paper/45820032107597a31479198bdee5afba06c3cde7","pdf_url":"https://doi.org/10.35940/ijitee.i8064.078919","is_open_access":true,"published_at":"","score":63},{"id":"ss_162cf29465042873bb4855f12f597918c313bc1d","title":"Advances in the assessment of mechanical properties of flexible pavements by GPR","authors":[{"name":"A. Benedetto"},{"name":"L. B. Ciampoli"},{"name":"A. Alani"},{"name":"F. Tosti"}],"abstract":"","source":"Semantic Scholar","year":2019,"language":"en","subjects":["Computer Science"],"url":"https://www.semanticscholar.org/paper/162cf29465042873bb4855f12f597918c313bc1d","is_open_access":true,"published_at":"","score":63},{"id":"doaj_10.3846/bjrbe.2017.10","title":"Experimental Investigation of Cracking Behaviour of Concrete Beams Reinforced with Steel Fibres Produced in Lithuania","authors":[{"name":"Adas Meškėnas"},{"name":"Viktor Gribniak"},{"name":"Gintaris Kaklauskas"},{"name":"Aleksandr Sokolov"},{"name":"Eugenijus Gudonis"},{"name":"Arvydas Rimkus"}],"abstract":"Concrete is the most widely used material for bridge structures in Lithuania. A case study performed by the authors revealed that application of fibres might improve serviceability of such structures. However, adequacy of prediction of the post-cracking behaviour of steel fibre reinforced concrete might be insufficient. The latter issue is closely related to the assessment of the residual strength of steel fibre reinforced concrete. The residual strength, in most cases, is considered as a material property of the cracked concrete. However, in the prediction of the structural behaviour of the concrete members with bar reinforcement, a straightforward application of the residual strength values assessed by using standard techniques might lead to incorrect results. The present study deals with the post-cracking behaviour of structural elements made of concrete with aggregates and fibres provided by Lithuanian companies. Test results of three full-scale and sixteen standard steel fibre reinforced concrete beams with two different content of fibres (23.6 kg/m3 and 47.1 kg/m3) are presented. The full-scale beams were reinforced with high-grade steel bars. Effectiveness of the application of the mini- mum content of the fibres in combination with bar reinforcement was revealed experimentally.","source":"DOAJ","year":2017,"language":"","subjects":["Highway engineering. Roads and pavements","Bridge engineering"],"doi":"10.3846/bjrbe.2017.10","url":"https://bjrbe-journals.rtu.lv/article/view/3278","is_open_access":true,"published_at":"","score":61},{"id":"doaj_10.31849/siklus.v3i2.393","title":"PREDIKSI TINGKAT KINERJA STRUKTUR GEDUNG KANTOR BERDASARKAN MUTU BETON  DENGAN METODE JARINGAN SARAF TIRUAN","authors":[{"name":"Beny Setiawan"},{"name":"Reni Suryanita"},{"name":"Zulfikar Djauhari"}],"abstract":"Gempa adalah fenomena alam yang tidak dapat diprediksi kekuatan, kapan dan dimana akan terjadi, fenomena alam ini menjadi salah satu faktor perusak utama bagi wilayah-wilayah yang dilewati jalur patahan. Kerugian yang diakibatkan gempa sangat besar, mulai dari kerusakan sarana - prasarana infrastruktur, ekonomi dan juga banyak menelan korban jiwa. Penelitian ini akan dilakukan analisis struktur dengan menggunakan analisis riwayat waktu (time history) dengan bantuan software elemen hingga. Pemodelan berdasarkan struktur bangunan gedung kantor yang direncanakan pada tahun pada tahun 2014, dan standar tingkat kinerja struktur berdasarkan FEMA 356. Pemilihan perencanaan gedung ini dikarenakan perencanaan tersebut tidak memperhitungkan beban gempa dalam analisis strukturnya. Beban gempa yang digunakan adalah gempa El-Centro yang akan diskalakan sesuai skala lokasi pembangunan, 0,25g, 0,50g, 0,75g dan 1,00g. Selain itu mutu beton juga divariasikan menjadi 11 mutu beton yang dimulai dari 15 MPa hingga 25 MPa untuk proses pelatihan jaringan saraf tiruan agar dapat memprediksi tingkat kinerja struktur bangunan gedung kantor. Hasil dari penelitian ini pada analisis tingkat kinerja sesuai dengan analisis riwayat waktu dengan gempa yang diskalakan pada lokasi pembangunan adalah SAVE atau sangat aman dikarenakan daerah pembangunan merupakan daerah tidak rawan gempa, sedangkan hasil pelatihan JST menghasilkan nilai R2 sebesar 98,11% dan MSE 0,00025 yang berarti pelatihan JST memiliki tingkat kesalahan sangat kecil dan keterkaitan tiap unsur pelatihan sangat bagus. Hasil dari testing JST mendapatkan nilai R2 sebesar 94,59% dengan nilai MSE 0,00082 yang berarti JST memiliki tingkat validitas tinggi dengan tingkat kesalahan sangat kecil yang hampir mendekati 0 (nol).","source":"DOAJ","year":2017,"language":"","subjects":["Highway engineering. Roads and pavements","Engineering (General). Civil engineering (General)"],"doi":"10.31849/siklus.v3i2.393","url":"https://journal.unilak.ac.id/index.php/SIKLUS/article/view/393","is_open_access":true,"published_at":"","score":61},{"id":"ss_a6734e588ff813675190c04c417e575d7f58e101","title":"Highway Engineering: Pavements, Materials and Control of Quality","authors":[{"name":"A. Nikolaides"}],"abstract":"","source":"Semantic Scholar","year":2014,"language":"en","subjects":["Engineering"],"doi":"10.1201/b17690","url":"https://www.semanticscholar.org/paper/a6734e588ff813675190c04c417e575d7f58e101","is_open_access":true,"citations":77,"published_at":"","score":60.31},{"id":"doaj_10.3846/bjrbe.2016.26","title":"The Effect of Compaction Degree and Binder Content on Performance Properties of Asphalt Mixtures","authors":[{"name":"Petr Hýzl"},{"name":"Ondřej Dašek"},{"name":"Michal Varaus"},{"name":"Dušan Stehlík"},{"name":"Pavel Coufalík"},{"name":"Jaroslava Dašková"},{"name":"Iva Krčmová"},{"name":"Pavla Nekulova"}],"abstract":"The effect of compaction degree and binder content on performance properties of asphalt mixtures of an asphalt concrete type for wearing and binder courses are described in the paper. Measurements of stiffness modulus by two-point bending test on trapezoidal shaped specimens, fatigue characteristics, and resistance against frost cracking by thermal stress restrained specimen test have been performed on selected asphalt mixtures. The main aim of the experimental part was to determine to what extent the performance properties of the individual mixtures will be affected when decreasing the compaction degree by 3% in comparison to the optimal design, i.e. from 100% to 97% degree of compaction. This decrease simulates incomplete degree of compaction of courses during pavement construction, which is common and accepted during acceptance tests and it is in accordance with the Czech regulations. Then, the decreased dosage of binder content by 0.5% is simulated, which is the boundary parameter for lowering the binder content within the acceptance test. The results of performance testing have been affected by lower compaction degree and lower binder content have been used as course parameters and integrated into a mathematical model of a commonly used pavement construction, which is presented by a multi-layered linear elastic model based on the use of Burmister‘s equations. The outcome of the paper is a description of the effect of lower degree of compaction and lower binder dosage on the lifetime of a pavement construction.","source":"DOAJ","year":2016,"language":"","subjects":["Highway engineering. Roads and pavements","Bridge engineering"],"doi":"10.3846/bjrbe.2016.26","url":"https://bjrbe-journals.rtu.lv/article/view/3396","is_open_access":true,"published_at":"","score":60}],"total":6217236,"page":1,"page_size":20,"sources":["CrossRef","DOAJ","Semantic Scholar"],"query":"Highway engineering. Roads and pavements"}