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Journal articles on the topic 'Road construction'
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1
Jaroslav, Hauser, Ševelová Lenka, Matula Radek, and Zedník Petr. "Optimization of low volume road pavement design and construction." Journal of Forest Science 64, No. 2 (February 28, 2018): 74–85. http://dx.doi.org/10.17221/109/2017-jfs.
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Low volume roads in the Czech Republic are roads with lower traffic volume that primarily include forest and field roads, and they are an integral part of the Czech transport network. When building road pavements, we can use processes for surveying, designing, building and inspecting road constructions included in national and international, particularly European, standards. In addition, the roads are evaluated in terms of their environmental impacts, in order to maintain the quality of the environment. However, during the construction of road pavements decisions based on financial, time and other reasons are made. The decisions have impacts on the operation of roads and lead to other measures and additional costs of repairs and reconstructions. The article summarizes the authors’ research results from constructions of low volume road pavements and contains evaluations of laboratory and in situ material tests (soils, layers) of installed road pavements as well as evaluations of modelled laboratory and long-term monitored in situ structures.
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Oad, Pardeep Kumar, Stephen Kajewski, Arun Kumar, and Bo Xia. "Bid Evaluation and Assessment of Innovation in Road Construction Industry: A Systematic Literature Review." Civil Engineering Journal 7, no. 1 (January 1, 2021): 179–96. http://dx.doi.org/10.28991/cej-2021-03091646.
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Objectives: This paper present a thorough understanding of bid evaluation process and assessment of innovation in road construction industry. Methods/Analysis: The research articles reviewed are based on topics of bid evaluation process, evaluation of bids in road construction industry, the indicators and techniques of bids evaluation, process of Bid evaluation in countries, innovation in road industry, and indicators of innovation in the context of road construction industry. Findings: It is widely accepted that projects related to the road construction must be accomplished in an organized manner. Literature indicates that the road constructing demands from customers and competition of assessing and evaluating tenders have been increasing rapidly. Novelty /Improvement: Challenges in developing suitable roads contribute to the inconsistency in the industry and directly demands towards physical work on a road construction project, nevertheless, a failure to accurately assessment of tenders can lead to complications for the whole project and road Construction Company. The selection of a suitable construction contractor’s surges likelihoods of successful achievement of a road construction project. This may also achieve the customer goals, and retain the project schedule on time, within the budget and achieve high quality project. Doi: 10.28991/cej-2021-03091646 Full Text: PDF
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Merbas, Rivolino, Endang Widjajanti, and Syahril Taufik. "Analisis Sistem Pengambilan Keputusan Penentuan Konstruksi Jalan dengan Perkerasan Kaku atau Fleksibel (Studi Kasus Jalan di Propinsi Maluku Utara)." SAINSTECH: JURNAL PENELITIAN DAN PENGKAJIAN SAINS DAN TEKNOLOGI 33, no. 1 (February 27, 2023): 22–34. http://dx.doi.org/10.37277/stch.v33i1.1650.
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ABSTRACT
This research discussing about decision support system analysis in determining concrete and composit road construction compared to asphalt construction for the case of roads in North Maluku Province. This study uses the Analytic Hierarchy Process (AHP) method or model as a method to analyze the feasibility of concrete and composit construction compared to asphalt construction. There are at least 7 (seven) factors that are considered as AHP inputs, namely road conditions, technical pavement, ecomonical/cost, duration/method of construction, availability of equipment, environmental conditions, and availability of materials. This study method includes data collection and analysis methods. For data collection, this study uses a questionnaire method that contains questions related to technical and non-technical factors that are used to assess the feasibility of a road for selecting a type of road pavement with flexible or rigid pavement. The construction feasibility of concrete and composite pavements is better than that of flexible asphalt pavements on road constructions, with the following sub-criteria conditions; roads that have bends and inclines, lower road maintenance costs, excellent weather and environmental resistance, less dense traffic, easy work execution and can be done at any time, do not require a lot of AMP and equipment, and asphalt availability can't fast time. The alternative of road pavement type is effective as a weight value of 33.78% with using the composite pavement construction.
Keywords: Roadworthiness, Composite pavement, AHP, Decision Support System, North Maluku
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Yang, Weiping. "AUTOMATIC CONSTRUCTION OF HIERARCHICAL ROAD NETWORKS." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-2 (June 2, 2016): 37–44. http://dx.doi.org/10.5194/isprsannals-iii-2-37-2016.
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This paper describes an automated method of constructing a hierarchical road network given a single dataset, without the presence of thematic attributes. The method is based on a pattern graph which maintains nodes and paths as junctions and through-traffic roads. The hierarchy is formed incrementally in a top-down fashion for highways, ramps, and major roads directly connected to ramps; and bottom-up for the rest of major and minor roads. Through reasoning and analysis, ramps are identified as unique characteristics for recognizing and assembling high speed roads. The method makes distinctions on the types of ramps by articulating their connection patterns with highways. Major and minor roads will be identified by both quantitative and qualitative analysis of spatial properties and by discovering neighbourhood patterns revealed in the data. The result of the method would enrich data description and support comprehensive queries on sorted exit or entry points on highways and their related roads. The enrichment on road network data is important to a high successful rate of feature matching for road networks and to geospatial data integration.
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Yang, Weiping. "AUTOMATIC CONSTRUCTION OF HIERARCHICAL ROAD NETWORKS." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences III-2 (June 2, 2016): 37–44. http://dx.doi.org/10.5194/isprs-annals-iii-2-37-2016.
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This paper describes an automated method of constructing a hierarchical road network given a single dataset, without the presence of thematic attributes. The method is based on a pattern graph which maintains nodes and paths as junctions and through-traffic roads. The hierarchy is formed incrementally in a top-down fashion for highways, ramps, and major roads directly connected to ramps; and bottom-up for the rest of major and minor roads. Through reasoning and analysis, ramps are identified as unique characteristics for recognizing and assembling high speed roads. The method makes distinctions on the types of ramps by articulating their connection patterns with highways. Major and minor roads will be identified by both quantitative and qualitative analysis of spatial properties and by discovering neighbourhood patterns revealed in the data. The result of the method would enrich data description and support comprehensive queries on sorted exit or entry points on highways and their related roads. The enrichment on road network data is important to a high successful rate of feature matching for road networks and to geospatial data integration.
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Trisaputra Zuna, Herry, and Zulaikha Budi Astuti. "Composite girder to fulfill the needs of 60 up to 80 m span bridge for toll road projects in Indonesia." MATEC Web of Conferences 270 (2019): 06001. http://dx.doi.org/10.1051/matecconf/201927006001.
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Ministry of Public Works and Housing of Indonesia is targeting to complete the construction of 1.000 km of new toll road projects by the end of 2019. In 2015 until August 2018, 443 km new toll roads have been operated and 1.400 km are under construction. Various types of structure for elevated toll road constructions are applied to meet the geometry and safety requirements such as cast in-situ balanced cantilever, steel I-girder, and steel box are becoming type of elevated toll construction to be applied. To meet the requirements of construction methods, construction time completion, and material volume efficiency, Indonesia Toll Road Authority on behalf Ministry of Public Works and Housing gives opportunities to toll road investors to apply the new technology as the proper selection. Composite Girder technology named Sbarch is proposed for Krian Legundi Bunder Manyar toll road project to cross at SUMO Junction. Compares Sbarch among cast in situ balanced cantilever, steel I-girder and steel box, Sbarch can comply for all requirement that cannot be fulfilled by others method such as with finish grade requirement, to road geometry alignment, accessibility, workability, and steel tonnage reducing.
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Batrakova, A., Y. Dorozhko, E. Zakharova, and O. Kliuka. "ANALYSIS AND GENERALIZATION OF REGULATORY SUPPORT FOR GEODESIC SUPPORT OF ROAD CONSTRUCTION OBJECTS." Municipal economy of cities 4, no. 164 (October 1, 2021): 99–103. http://dx.doi.org/10.33042/2522-1809-2021-4-164-99-103.
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The transfer of the project to the site requires the performance of measurements and constructions with high accuracy. Changes in the technology of geodetic works related to the computerization of geodesy, the introduction into geodetic practice of electronic geodetic instruments and automated processing programs, require the introduction into production of both traditional methods of geodetic measurements and new technologies and methods of geodetic works. Despite the fact that geodetic works are an integral part of construction, in the regulations on surveys, design and construction of roads and man-made structures quite limited regulation of the content of work on the transfer of projects to the field, division work, executive surveys, geodetic quality control, accuracy requirements, etc. Given the current state of regulatory and legal support for geodetic support of road construction sites, it is advisable to develop a national standard for the implementation of geodetic surveying and geodetic control in the construction of road construction sites. This standard will supplement the main provisions of regulations on the construction of roads and transport facilities. With the growing volume of design, construction and overhaul of roads, it is necessary to standardize all stages of design and construction work, including those related to geodetic production. The development of technologies and methods of geodetic works related to the computerization of geodesy requires the introduction into production of both traditional methods of geodetic measurements and new technologies and methods of geodetic works. Based on the analysis and generalization of regulatory support for geodetic support of design and construction of roads and artificial structures, the need to develop a national standard for geodetic surveying and geodetic control in the construction of road construction as a supplement to the basic provisions of regulations on road construction and transport facilities.
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Zelikov, Vladimir, Aleksey Skrypnikov, Vadim Samcov, Sergey Sablin, and Anton Borovlev. "FACTORS INFLUENCING THE COMPLEXITY OF CONSTRUCTION OF DEPARTMENTAL MOTORWAYS." Forestry Engineering Journal 10, no. 2 (July 6, 2020): 114–22. http://dx.doi.org/10.34220/issn.2222-7962/2020.2/11.
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When planning the construction of a forest road and choosing its rational position on the ground, engineer is constantly faced with the need to take into account the features of the relief, climate, physical and geographical processes and phenomena, surface and underground waters, soil, vegetation, and human economic activity, as factors determining the first first of all, the cost of the construction of a forest road. A correlation analysis carried out for all the arguments has made it possible to establish the most important characteristics of the components of the geographic environment that affect the complexity of constructing a timber road by cost type. The state of theoretical research in the field of construction of departmental motorways has been thoroughly reviewed and analyzed. The analysis made it possible to outline the goals, objectives and general methodology for determining the cost of building roads, depending on the type of work, as well as varying degrees of complexity of road construction, the value of natural resources, and the specific qualities of the territory in the area of the road. The presented results and dependencies may be the basis for determining the basic cost of road construction
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Zhao, Mingwei, and Na Zhao. "Method for the Construction of Urban Road Digital Elevation Models Integrated with Semantic Information." Applied Sciences 13, no. 7 (March 26, 2023): 4210. http://dx.doi.org/10.3390/app13074210.
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Roads are a type of typical artificial terrain, and are key components of urban terrain. Road networks formed by connections between different roads not only form the skeleton of urban terrain, but also plays an important role in transmitting energy and matter on the urban surface. Therefore, how to consider characteristics when constructing the digital road elevation model (DEM) has become an important research topic in the field of geographic information and mapping. Using high-definition unmanned aerial vehicle (UAV) images as the basic data source, this study proposes a new method for constructing the road DEM by analyzing semantic features such as road shape and function. This method first takes the sideline and centerline of the road as the macroscopic undulation morphological constraints. It uses the shape control equation of the local domain to constrain the morphological change characteristics of the road surface in the transverse and longitudinal directions, in order to construct the road DEM with high fidelity to the surface shape characteristics. Then, in terms of the water catchment function of the road surface, a road DEM correction method considering surface flow direction characteristics is designed to ensure that the water catchment path of the road surface conforms to the actual situation. For this paper, several typical roads in Chuzhou University in Anhui Province, China, were selected as the experimental objects to carry out a DEM construction experiment. The results indicate the following: (1) compared with the traditional construction method, the DEM shape of the road constructed by this research method is more consistent with the actual road shape, and the smoothness of the road surface is better; (2) due to the high density and high elevation accuracy of the point cloud used in modeling, the elevation adjustment strategy of the sideline and centerline of the road implemented in this study does not reduce elevation accuracy, indicating that an adjustment to the elevation information is necessary for constructing the DEM of special artificial terrain; and (3) the DEM correction method proposed in this paper to find the correct catchment path can ensure that the processed DEM can accurately simulate the surface catchment process, and the correction of the elevation of the road DEM is also controlled within a small range without affecting the elevation accuracy of the regional DEM. This study has reference value for implementing projects such as urban terrain expression in the construction of 3D China.
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Gáspár, László, and Zsolt Bencze. "Blast furnace slag in road construction and maintenance." Dorogi i mosti 2021, no. 23 (March 25, 2021): 53–59. http://dx.doi.org/10.36100/dorogimosti2021.23.053.
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Introduction. There is a global trend to increase the sustainability of road construction and maintenance technologies. The growing use of various industrial by-products as economical and eco-friendly construction and maintenance techniques can be observed in many countries.Problem Statement. The utilization of various forms of blast furnace slag in the road sector can be cost effective, however, several special technological measures have to be taken.PurposePresenting best practices for the use of blast furnace slag in road construction and maintenance techniques based on Hungarian and other decade-long experiences.Materials and Methods. The main types investigated are air-cooled blast furnace slag, expanded or foamed slag, pelletized slag, and granulated blast furnace slag. The utilization areas in road sector: asphalt layers, surface treatments, rut repair, hydraulically bound pavement layers, unbound base layers, frost protection layer, subgrade, cement production.Results. Presenting best practices for the use of blast furnace slag in road construction and maintenance can be beneficial for the experts of countries with limited experience in the field. Keywords: blast furnace slag, industrial by-products, road construction, road maintenance, environmental protection
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Shojaeipour, Shahed, Abbas Tahmasebi Nejad, Mohammad Saeed Masoomi, Hamid Reza Mokhtarian, and Ali Jahanshahi. "A Novel Method for Rural Road Construction Planning Using Quad-Tree Decomposition on the Satellite Image." Solid State Phenomena 166-167 (September 2010): 363–68. http://dx.doi.org/10.4028/www.scientific.net/ssp.166-167.363.
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Rural roads construction projects are expensive, this has led to difficulties in developing accurate construction plans and modeling the construction operation using a novel simulation system. In this field, the aim of this research is to create a knowledge driven rural road construction simulation system to assist satellite image in generating s and reliable road construction plans. Road construction operations of the resources have been identified, developed, classified and modeled through a comprehensive analysis of a Simulink road construction projects. For every road construction operation a GIS-based template for little models was defined and developed. The models abridge distance of the path on the roads construction between villages and automating the optimizing of works. Also, the models provide a roadmap for evaluating several shortest paths on road construction via Quad-tree decomposition of the satellite image. A simulation case study was modeled to identify applicability, usefulness and accuracy of the developed simulation system and results are presented in this paper. The study fulfilled that the system generated for fast marching.
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Serdyuk, Vasyl. "POST-WAR RECOVERY AND GROWTH IN ROAD CONSTRUCTION." Modern technology, materials and design in construction 35, no. 2 (December 29, 2023): 177–84. http://dx.doi.org/10.31649/2311-1429-2023-2-177-184.
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The socio-economic development of a country and its integration into the global community largely depend on the level of road maintenance. The issue of road maintenance has become especially relevant and important during the period of martial law, since, for obvious reasons, roads are critical infrastructure facilities. Of course, the treatment of such facilities should be appropriate to their purpose. All of this requires research, assessment of the effects of the war on the condition of roads due to their destruction, and development of measures to improve the state of road construction. An important role is assigned to the resource base of road construction - first of all, the availability of bitumen and mineral fillers.
The length of public roads in Ukraine is analyzed in comparison with the leading countries of the world. Positive trends in the market of road construction and repair related to the reform of the road sector are identified. The quality of roads and their saturation in comparison with other countries of the world is assessed.
The problematic issues of domestic production and imports of bitumen are investigated. The article shows Ukraine's import dependence and lack of organic binder, as well as the practical absence of concrete road construction. The author analyzes the development and improvement of the regulatory framework for the design and construction of roads.
Prospects for the implementation of the public-private partnership mechanism are shown, taking into account international experience The necessity of implementing the public-private partnership mechanism, in particular, through the concession mechanism, is substantiated. The regulatory framework needs to be updated to meet EU requirements and implement international standards. The implementation of these measures will help to increase the level of validity of operational and strategic management decisions to ensure the effective functioning and development of Ukrainian road sector enterprises.
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Syzdykova, Aigerim, Aigul Zhakyp, and Assel Tulebekova. "Features of using modified bitumen in road construction." Technobius 1, no. 4 (December 8, 2021): 0007. http://dx.doi.org/10.54355/tbus/1.4.2021.0007.
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The road industry is one of the important components of the economy. Quantitative and qualitative changes in the road industry require new technological approaches to road construction. The higher the transport-operational level of roads, the less the negative consequences of motorization are manifested. The condition of highways and their compliance with the international standards largely depends on the observance of construction technologies of road pavement, and the road pavement itself should have layers of strong, frost and temperature resistant monolithic materials which provide a long period of exploitation. The paper presents the peculiarities of the application of different types of modifiers for bitumen. It discusses their advantages and disadvantages, the importance of selecting the composition of the bituminous and mineral mixture. The use of crumb rubber as a modifier allows to realize the concept of a closed resource-saving technology of construction of roads. This approach will allow, on a technologically sound basis and taking into account the real needs of road construction materials, to restore the road network.
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Tereshchenko, Tatiana, and Serhii Illiash. "EXPERIENCE ON DESIGN AND CONSTRUCTION OF ROAD PAVEMENTS USING THE CLAUSES OF EUROPEAN STANDARDS ON HYDRAULICALLY BOUND MATERIALS." Avtoshliakhovyk Ukrayiny, no. 3 (259) ’ 2019 (October 17, 2019): 42–50. http://dx.doi.org/10.33868/0365-8392-2019-3-259-42-50.
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Hydraulically bound mixtures (HBM) are most effectively applied in the base layers of flexible road pavements to enhance their load bearing capacity and also in the base layers of rigid road pavements in the case of weak soils of the sub-grade. The evaluation of Ukrainian standards which are identical to European standards relating HBM leads to the point of subsequent implementation of new requirements trough design and construction of motor roads in Ukraine. The by European standards stated requirements and classification of HBM provide a modelling regime closer to the performance of bound pavement layer and give the wider range of HBM designations with different strength properties. Thus, this article reviews such aspects of design and construction of road pavements with HBM layers which are distinguished from the conception approved now in Ukraine. The reviewed clauses on design and construction concern road pavements which, in accordance with the European practice, are classified as flexible pavements or semi-rigid pavements and are comprised of flexible (bitumen-bound) upper layers laid on a HBM base. The reviewed types of road pavement constructions are most eligible to emphasize the possibilities of implementation of new standard requirements in the Ukrainian road building industry. As it was concluded, the European standards state classification of HBM by compressive strength RC and classification by tensile strength in combination with elastic modulus Rt, E. These methods of classification are equivalent with no correlation intended between them and have been successfully used during design and construction of road pavement constructions comprised of bitumen-bound layers laid on a HBM base. When designing the motor roads with the above mentioned pavement construction to be loaded with high traffic, HBM of strength classes RС from С8/10 to С9/12 shall be contributed where classes of strength are determined by the type of a hydraulic binder and can be accorded to the categories by ”Rt, E” values not less than T3 (from T3 to T5). Keywords: hydraulically bound mixtures, classification by values of mechanical properties, compressive strength, base layers from hydraulically bound mixtures.
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Susilowati, Fajar, Farah Claudias Nike Tyagita, Ria Miftahul Jannah, and Yusfita Chrisnawati. "Construction Project Risk at the Toll Road Construction Implementation Phase (Case Study: Solo – Jogja Toll Road Construction Project)." MEDIA KOMUNIKASI TEKNIK SIPIL 29, no. 1 (October 27, 2023): 132–40. http://dx.doi.org/10.14710/mkts.v29i1.48840.
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The Solo – Jogja Toll Road Development Project is a large-scale project with a large potential risk, especially at the project implementation stage. This research aims to find risks, obtain the level of risk by conducting a risk assessment, and recommend control measures against possible risks. The research method used in this study is HIRARC (Hazard Identification, Risk Assessment, and Risk Control). Purposive sampling was used to collect data from 30 respondents using a questionnaire based on certain criteria. The testing of this research instrument is in the form of validity and reliability tests using SPSS. In this research, 5 risk groups were identified during the implementation stage of the Solo - Jogja Toll Road Construction Project, including project risk, technical risk, natural risk, human risk, and occupational health and safety risk. The results of the analysis explained that the project has a risk range from low to high levels. The risk included in the high-level category is the risk of damage to roads around the project due to heavy equipment, such as dump trucks, project materials carriers, and trucks mixer. The risk can be minimized by creating a safe project access road, so that project activities do not cause further damage to the road.
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Kuang, Degang. "Analysis on Reconstruction Design of Old Urban Roads." Urban Transportation & Construction 6, no. 3 (November 19, 2020): 49. http://dx.doi.org/10.18686/utc.v6i3.91.
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<p>With the continuous development of cities, the urban roads built in the early days can no longer meet the needs of modern urban transportation. Therefore, in the current urban development and construction process, the reconstruction of old roads is the key construction content. At the same time, the transformation of old urban roads is also an inevitable requirement to improve the urban road system and improve the level of urban communication infrastructure construction and transportation service capacity. The reconstruction of old roads meets the requirements of the overall planning and construction of modern cities, and plays a vital role in promoting the development and progress of urban economy and improving the quality of life of urban residents. In the process of urban old road reconstruction, because the original urban road environment is very complex and involves many factors, the rational design of the construction scheme of the old road reconstruction project is the key factor affecting the effect of the old road reconstruction. This paper makes an in-depth exploration and analysis of the old road reconstruction design of urban roads, and puts forward scientific and reasonable suggestions in combination with the actual situation, so as to provide reliable theoretical support for improving the old road reconstruction level and promoting the urbanization development process in China.</p>
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Yu, Chao, Liu Wu, Yuyao Liu, Kunhui Ye, and Guibao Liang. "Estimating Greenhouse Gas Emissions from Road Construction by Considering the Regional Differences in Carbon Emission Factors of Cement: The Case of China." Buildings 12, no. 9 (August 31, 2022): 1341. http://dx.doi.org/10.3390/buildings12091341.
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Rapid road construction and expansion in China resulted in massive GHG emissions. The carbon emission factors of raw materials, particularly cement, have a significant influence on the calculation of GHG emissions from road construction. This study estimates GHG emissions from road construction by taking into account regional differences in cement carbon emission factors. The results indicate that (1) total GHG emissions from road construction have a “U” shape from 2009 to 2019, with the highest level being 437 million t CO2e 2009 and the lowest level being 184 million t CO2e in 2017; (2) Class-Ⅳ roads account for roughly 80% of total GHG emissions from road construction; and (3) GHG emissions from road construction are shifting from east to west regions. This is the first paper to calculate GHG emissions from road construction by taking into account both road type and cement carbon emission factors. The findings of this study could provide references for transportation agencies to better understand the impacts of road construction to climate change and improve policymaking, especially for the development of road construction technologies and raw material production technologies.
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Aaron, Jessi Elana. "The road already traveled." Studies in Language 40, no. 1 (April 29, 2016): 26–62. http://dx.doi.org/10.1075/sl.40.1.02aar.
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Usage-based models of language have proposed a dynamic, organized system based on analogy, or the recognition of similarity. The potential role of analogy between similar forms or constructions, however, is not often discussed. If we aim to illustrate grammaticalization and other diachronic processes not through one construction at a time — but by quantitatively assessing the relationship between constructions — we may better address the role of analogy as a mechanism of change. This quantitative, diachronic, corpus-based examination of language-internal constructional analogy is based on four forms in Spanish: altamente ‘highly’, enormemente ‘enormously’, extraordinariamente ‘extraordinarily’, and extremadamente ‘extremely’. These forms all occur in at least two basic constructions, in which they function as modifiers of verbs and as modifiers of modifiers. Analogical “transference” of paths of change between forms is proposed as a cross-linguistic language-internal process. Not only do forms compete with each other, but they also may borrow the path another has taken.
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Zakharov, Sergey V., Valery P. Lushpey, Alina V. Ibragimova, Yan Weina Weina, and Zang Nan. "Economic, environmental and technical design characteristics of highways under permafrost (insular) conditions." «Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost» 12, no. 4 (2022): 560–69. http://dx.doi.org/10.21285/2227-2917-2022-4-560-569.
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This paper addresses the characteristics of road design under permafrost conditions. Economic and mathematical calculations were used along with practical experience of “Svaybur” and “Gidrostroiengineering” companies, involved in road construction and maintenance for a long period. The prices for construction materials for economic and mathematical calculations were determined using the Integrated Construction Price Standards for Capital Construction Projects for Non-Production Uses. ICP 81-02-08-2017. Collection No. 08: Roads. The environmental requirements were based on the recommended practices developed by the Federal Agency “Rosavtodor”. The cost of maintaining and reconstructing a damaged section of road can exceed by several times the estimated construction cost of the whole section, as well as hinder the logistics and transport accessibility of the agricultural land. In some cases, the environment of the surrounding land may be adversely affected, since harmful contaminants that under normal conditions are bound by the top and bottom structures of the road are released into the soil due to its erosion. The paper examines the economic and environmental problems of designing roads connecting important logistics centres under insular permafrost and permafrost conditions. Here, the calculation of construction costs for road reinforced using screw piles if necessary to prevent the erosion of some road sections during spring floods or heavy precipitation is presented, along with a comparative analysis of construction costs for roads under insular permafrost and permafrost conditions.
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Tsarenkova, I. M. "OPTIMIZATION OF SUPPLIES OF MATERIAL RESOURCES IN THE LOGISTICS SYSTEM THE CONSTRUCTION OF ROADS." Science & Technique 16, no. 6 (November 29, 2017): 537–45. http://dx.doi.org/10.21122/2227-1031-2017-16-6-537-545.
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Logistics plays a significant role in resource provision of automobile road construction. The following specific factors have rather high influential character, namely: necessity to use various types of material resources, presence of multicomponent semi-finished products that require final preparation on the construction site, rather large linear length of objects that requires formation of logistics road-construction flow, distance from production bases of construction organizations, dependence of production on natural and climatic factors, distinct seasonality of executed works. All these conditions influence on specific organizational and economic forms of logistics processes while constructing automobile roads. In order to apply a logistics approach for organization of the automobile road construction it is expedient to make modeling of systems for supply of material resources to ensure continuous process of works. Such approach will permit to specify processes requiring optimization. The proposed logistics approach to rational organization of supply for material resources required for automobile road construction presupposes control of all operations which must be carried out on the path of material flow motion. Specific feature of supply chain of material resources in the logistics system for automobile road construction is a direct dependence of final product quality on technology compliance during execution of works which is directly connected with timely supply of materials. Optimization is achieved through selection of quantitative composition of transport facilities, improvement of their productivity and selection of rational transportation schemes using a criterion of minimum cost. Usage of mathematical apparatus allows to calculate optimal number of transport facilities in the logistics system for automobile road construction, ensuring smooth delivery of material resources to the object with due account of the required rate of construction works.
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Hadi, P. L., T. Wasanta, and W. Santosa. "Land use change due to road construction." IOP Conference Series: Earth and Environmental Science 920, no. 1 (November 1, 2021): 012003. http://dx.doi.org/10.1088/1755-1315/920/1/012003.
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Abstract Roads is one of the main infrastructures to support the realization of economic development. The economic development resulting economic activity and the emergence of new industrial and activity centers, and then will stimulate population movement and growth. The increase of the population number and movement will encourage changes in land use. This study conducted to analyze the effect of road construction on the rate of land use change. Land use change caused by the construction of this road was identified by analyzing land use change with the help of a geographic information system. Satellite imageries are processed into maps based on geographic information systems to classify land use gradually over years. The results of this classification are then used for land use change analysis. The analysis carried out shows that there is a change in land use rate growth for building classification before and after road construction. Land use for growth for building classification is developed faster when a new road is built than before a road is built. In the area around the Salatiga and Ambarawa Ring Roads, the increase in the proportion of built-in land use is the conversion of forest land use and open land. Meanwhile, in the area around the Manado Ring Road, the increase in the proportion of built-in land use is the conversion of forest land use.
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Huang, Yihao, and Yizhong Tang. "Investigating the Impact Factors of Night Construction for Urban Road Projects." Frontiers in Business, Economics and Management 6, no. 2 (November 23, 2022): 159–64. http://dx.doi.org/10.54097/fbem.v6i2.3020.
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Construction work on urban roads often causes changes in the speed and trajectory of vehicles, resulting in serious congestion and traffic accidents. Construction work on urban roads also poses several energy, environmental and social problems. In this context, maintenance work is increasingly being carried out at night, when traffic pressure is relatively low, to minimize the adverse effects of road construction. This study uses a literature review and expert interviews to construct a model of the influencing factors of urban road construction at night containing 11 factors. A questionnaire is designed to investigate the road construction enterprises' agreement with these influencing factors. The results of the statistical analysis and factor analysis showed that the factors can be divided into two main factors: the competent factor and the objective factor. The objective factors of road construction have a significant impact on construction companies, which should pay more attention to the impact of road construction at night on construction and traffic. Air pollution and energy consumption are the least important factors for construction companies when considering whether to use night work as a method. The only way to carry out night work is to ensure the safety of construction workers, adequate lighting and a comprehensive traffic control plan.
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Kusumaningrum, Rahayu. "GREENHOUSE GAS EMISSIONS AS AN IMPACT OF NEW ROAD UNDER RAILWAY ELEVATION PROJECT IN TAOYUAN, TAIWAN." PROKONS Jurusan Teknik Sipil 11, no. 1 (March 1, 2017): 37. http://dx.doi.org/10.33795/prokons.v11i1.128.
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Frequent occurrence of severe traffic congestion between Taoyuan City and Zhongli City has encouraged Taoyuan County Government to build elevated railway between these two cities. Besides, this plan also intended to merge all road signage by constructing new roads under the newly built elevated railway. Based on the environmental point of view, railway infrastructure improvement may be able to reduce the congestion and also emission. But the construction of new roads under it may result conversely, especially for the area neighboring the project. Therefore, the impact of railway elevation project parallel with the construction of new road on greenhouse gas emissions generated by road transport needs to be further studied.This study integrates transportation planning model and emission estimation model in order to estimate CO2 emissions as an impact of road improvement and further shows the spatial distribution of emission in grid-based emission. Short-term and long-term period analysis were done both for Taoyuan County and the affected area. Short-term period analysis analyze the project’s impact on emission for short-term after the project is implemented. Meanwhile, long-term period analysis analyze the impact of the project 20 years later.The results shows that in term of emission, the implementation of railway elevation project parallel with the construction of new roads generates the lowest CO2 emissions for whole Taoyuan County area both for short-term and long-term period analysis. In contrary, for project-affected area, the lowest emission is derived from the implementation of railway elevation project without construction of new roads both for short-term and long-term period analysis. Keywords: Railway elevation project, road improvement, emission estimation model, grid-based emission, Taoyuan County
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Zhang, Guoxiang. "Research on Construction Technology and Management Measures of Urban Road Subgrade." Urban Transportation & Construction 6, no. 3 (November 19, 2020): 53. http://dx.doi.org/10.18686/utc.v6i3.92.
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<p>With the rapid development of modern economy, the scale of cities is constantly expanding and the population is constantly growing. Strengthening urban construction has become one of the important work contents of socialist modernization in China. To build a modern city, road construction is the key work of urbanization. Subgrade is the most important construction link in urban road construction and the important foundation of road engineering. In this paper, combined with the specific conditions of urban roads, the construction technology and management measures of urban road subgrade are deeply explored, and perfect construction schemes and management measures are formulated to provide more reliable reference basis for promoting urban development and construction.</p>
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Boboc, Andrei, Ancuţa Rotaru, Vasile Boboc, and Gupinath Bhandari. "An Approach to Identify the Impact of Human Intervention on Major Defects in Road Design, Construction and Maintenance." Advanced Engineering Forum 21 (March 2017): 327–34. http://dx.doi.org/10.4028/www.scientific.net/aef.21.327.
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The need to build and run roads offering structural integrity led to great advances in the fields of material sciences and fracture mechanics, but construction defects occur to either the new roads or the old ones. There are generally four categories of construction defects referring to roads: construction deficiencies, design deficiencies, material deficiencies, and subsurface deficiencies, but it is not uncommon for a design deficiency to link on to construction deficiencies in the structure.The paper aims to emphasise that people think different about hazard and safety especially when they build roads. Differently put, roads rely more heavily on their makers and users to limit both the occurrence and impact of human error in construction and maintenance on the one hand and to rectify and rehabilitate on the other hand to improve the safety performance of road transport systems and keep accidents from occurring.The paper aims to provide information about the defects occurred in the road construction and maintenance affecting human safety bringing forward practical examples. Moreover, it examines the materials widely implemented in the road construction from the viewpoint of their technological restraints and possible deficiencies. It also analyses some of the methods used on fields about how they might positively influence the road reliability and the human security implicitly.
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Acharya, Krishna Raj. "Effects of Road Construction in Nepal." Tribhuvan University Journal 36, no. 02 (December 31, 2021): 39–53. http://dx.doi.org/10.3126/tuj.v36i02.46598.
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It is widely accepted fact that rural roads have the most significant role in poverty reduction as they provide physical access to the rural population. Without the physical access, the rural population is being deprived from obtaining different services like health, education, drinking water, etc. In addition, lack of link between the rural areas and the market also creates the constraints on agricultural production and other economic activities. There is the knowledge gap as how the rural people can be benefited from the rural roads and what economic advantages are accessible from it. Thus this study is an attempt to explore how rural road helps in the creation of employment opportunities, reduction of input costs, increase in production and decrease in wastage and provide access to market and helps in poverty reduction. This study reveals that the rural road in the study area has significant impact on poverty reduction. From F-test, T-test, correlation as well as regression statistical analysis, it was concluded that there is significant relation of increase in income, reduction in time to market, occupation, and number of working age family members with the increase in savings. It can be claimed that this study has met its objectives of studying the impacts of rural road in poverty reduction.
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Sessions, John, John C. Balcom, and Kevin Boston. "Road Location and Construction Practices: Effects on Landslide Frequency and Size in the Oregon Coast Range." Western Journal of Applied Forestry 2, no. 4 (October 1, 1987): 119–24. http://dx.doi.org/10.1093/wjaf/2.4.119.
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Abstract The effects of road location and construction practices on landslide frequency and size were studied in a 300,000-ac area of the Oregon Coast Range. Roads were divided into two groups. Roads in Group I had been built using a combination of steep road grades and full-bench, endhaul construction to minimize slide risk. Group II roads were built using location and construction practices typical of the late 1960s and early 1970s. Using steep road grades to maintain ridgetop locations and full-bench end-haul construction did reduce landslide frequency and size on Group I, as compared to Group II, roads. The marginal cost of reducing slide volumes/road-mile from the volumes found on Group II roads to the volumes found on Group I roads was six times greater in more plastic than in less plastic soils when roads crossed slopes of equal steepness. When roads crossed slopes with a sideslope steeper than 50%, the estimated cost of reducing the volume/road-mile of slide from Group II to Group I levels ranged from $81/yd³ ($154/ac) to over $12,000/yd³ ($3675/ac), depending on landtype, sideslope, and endhaul distance. West. J. Appl. For. 2(4):119-124, October 1987.
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Talypov, K. K., and A. T. Nazaralieva. "POSSIBILITIES OF APPLICATION OF UAV DATA IN CONSTRUCTION AND ECONOMY TASKS." Herald of KSUCTA n a N Isanov, no. 2-2021 (June 24, 2021): 178–81. http://dx.doi.org/10.35803/1694-5298.2021.2.178-181.
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This paper provides examples of data from UAV experiments carried out on the territory of Kyrgyzstan for the tasks of construction and economics. Examples of processing the obtained images for creating a 3D model, planning a road network, constructing transverse profiles, determining the amount of repair work, the state of roads, cracks and faults for research, designing road works are given. The possibilities of using such data for geodesy and mapping tasks are also shown.
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Tarasova, Marina, Irina Trotsenko, Julia Korchevskaya, and Oleg Chemisenko. "Development of nanocomposite materials for road construction." E3S Web of Conferences 413 (2023): 06002. http://dx.doi.org/10.1051/e3sconf/202341306002.
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The level of economic development of any state can be determined today by the quality of roads. Consequently, a wide variety of projects and concepts have appeared in almost many countries recently, which radically change the idea of roads. Reliability and safety of delivery of various cargoes largely depends on the quality of construction and repair of modern road surfaces. Road works related to their various types (replacement of the canvas, marking) cannot be carried out without additional signs and fencing devices. This article discusses the possibility of replacing the polymer matrix that forms the basis of fencing devices (plastic cones, road barriers) with polytetrafluoroethylene (PTFE) using a reflective component. As a reflective component, it is proposed to use a photoluminophore, which is capable of converting absorbed energy into light radiation, providing continuous light emission for 10 hours. The main criterion of this material is its light output in the dark.
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Mbullo Owuor, Patrick, and Denielle A. Elliott. "Super-highways and Infrastructure Development in Kenya: The Political Economy of Kenya-China Road Development Projects Since 2013." African Journal of Development Studies (formerly AFFRIKA Journal of Politics, Economics and Society) 13, no. 1 (March 1, 2023): 115–30. http://dx.doi.org/10.31920/2634-3649/2023/v13n1a6.
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BACKGROUND:In the last two decades, Kenya’s development agenda has focused on Vision 2030’s aim of transforming the country into an industrialised, modern-middle-income state. To fulfill this desired economic growth, the government has emphasised infrastructure improvement, a move that has prompted heavy borrowing, especially from China. Despite the numerous studies on China’s involvement in road construction, there has been no attempt to look at how the Kenya Road Classification System can inform and influence the choice of road projects. In addition, limited studies have illustrated the theoretical standpoint of China-Kenya road improvement projects. OBJECTIVE:Therefore, this paper explores the interest of China in road construction in Kenya through the analysis of the Kenya road classification system. In addition, it examines how the Kenya-China road construction projects can be described from a neoliberal standpoint. METHOD:The paper draws from an analysis of grey literature, including newspapers, blogs, and internet archives, and ethnographic fieldwork on national infrastructure projects, particularly roads in Kenya. CONCLUSION:The findings suggest that China’s primary focus is on trunk roads (class ‘A’ roads), which play a critical role in regional access to resource-rich regions and provide strategic geopolitical and territorial positioning. We argue that the Kenya National and Highway Authority’s Road Classification System can reveal the political and economic interests in road construction.
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Ren, Huxing. "Application of Solidified Materials in Construction Roads of High Standard Farmland Projects." Academic Journal of Science and Technology 3, no. 3 (November 22, 2022): 196–97. http://dx.doi.org/10.54097/ajst.v3i3.2980.
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Road construction in high standard farmland construction projects has always been the focus of project construction. Mud stone road construction is often used in the tableland area. Due to the impact of rainfall scouring, mud stone roads are often damaged. As a new high-performance curing agent that can optimize and improve the soil, the new soil curing material can ensure that the strength of the subgrade can be effectively enhanced, facilitate the smooth implementation of the construction link, and maximize the quality and efficiency of road construction, which has a good promotion value.
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Bajrić, Muhamed, Dragutin Pičman, Dževada Sokolović, and Safet Gurda. "PREVOĐENJE TRAKTORSKIH VLAKA UZDUŽNOG NAGIBA DO 12% U PRILAZNE KAMIONSKE PUTEVE." Radovi Šumarskog fakulteta Univerziteta u Sarajevu 41, no. 1 (June 1, 2011): 85–100. http://dx.doi.org/10.54652/rsf.2011.v41.i1.142.
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UDK 630*38
The paper presents one of the possible approaches to construction of the forest truck access roads, in this case transformation of the main skid roads with longitudinal slope up to 12%. Such an approach to construction of forest truck roads can generate significant financial savings. It assumes significantly smaller volume of earthworks, in particular in preparation of the ground and the lower road layer, and thus lower financial investment in road construction. Through a detailed comparative analysis of the estimated measures and estimated costs of transition and new construction works, the paper clearly indicates the specific phases of works in which scale and cost of construction works differences are emphasized. It also considers the ecological segment which has been increasingly emphasized lately, and with this approach to road construction it fully comes to the fore.
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Raut, Aditya, Sagar W. Dhengare, Ajay L. Dandge, and Harshal R. Nikhade. "Utilization of Waste Plastic Materials in Road Construction." Journal of Advance Research in Mechanical & Civil Engineering (ISSN: 2208-2379) 3, no. 3 (March 31, 2016): 01–12. http://dx.doi.org/10.53555/nnmce.v3i3.321.
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Plastics are user friendly but not eco-friendly as they are non biodegradable. Generally it is disposed by way of land filling or incineration of materials which is extremely risky. This waste plastic can be partially mixed with material use for road construction. In conventional road making process bitumen is used as binder. Such bitumen can be modified with waste plastic pieces. This waste plastic modified bitumen mix shows better binding property, stability, density and more resistant to water. Worldwide use of waste material in road construction is being increasingly encouraged so as to reduce environmental impact. The use of this innovative technology will strengthen the road construction and increase the road life as well as will help to utilization of waste plastic material. Plastic roads would be a blessing for hot and extremely humid climate, where temperatures normally cross 50°C and abundant rains create damage, leaving most of the roads with big potholes. The main aim of this study is to focus on using the available waste/recycled plastic materials and waste rubber tires present in abundant that can be used economically and conveniently. Using this technique for road construction proves ecofriendly, economical and use of plastic will also give strength in the sub-base course of the pavement.
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Ariyanda, Tiara, and Khoirunurrofik Khoirunurrofik. "Household Income Differences between Residential Distance from the Toll Road in Indonesian Suburban Areas." Indonesian Journal of Planning and Development 5, no. 1 (February 29, 2020): 21–29. http://dx.doi.org/10.14710/ijpd.5.1.21-29.
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Toll roads play a significant role in regional development. Moreover, toll roads affect the behavioral patterns of the people who reside in the surrounding areas and the region's development. Toll roads improve accessibility to resources that lead to higher productivity and ultimately foster economic growth. This paper aims to examine the difference in household income levels between suburban areas before the construction of Bakauheni–Terbanggi Besar toll road in 2014 and after the toll road construction in 2017. Toll road construction is associated with society's income; the areas closer to the toll road are inclined to have higher income levels. Furthermore, the construction of a toll road creates socio-economic opportunities and improves accessibility for society. This research used an income effect model to develop transformational household changes using the Ordinary Least Square (OLS) Regression. It is discovered that there is a behavioral correlation both in and between the households that leads to shifts in the work sector, income level, health, and education. This research showed that households' income is significantly increased after toll construction. Residential distance from toll also has a strong correlation with income, which households residing closer to the toll road have earned more income than those residing farther.
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Myachin, V. N., K. S. Borovikova, and D. P. Krivtsov. "FEATURES OF THE CLASSIFICATION OF THE STREET-ROAD NETWORK WHEN CONSTRUCTING THE ROAD GRAPH IN THE TRANSPORT MODEL." Automation on Transport 7, no. 2 (June 2021): 268–83. http://dx.doi.org/10.20295/2412-9186-2021-7-2-268-283.
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Constructing transport models is a relevant tool for solving various transport problems. The article discusses one of the important stages of creating a transport model — building a graph of a street-road network. The examples of the graphs of the street-road network of cities developed by the authors are presented. Special attention is paid to the features of road classification when developing a graph. The analysis of normative documents, in accordance with which a class is assigned to roads and streets in the Russian Federation, is carried out. Three ways of developing a road network graph are proposed. Methods for constructing a graph using data on the street-road network from the open cartographic source OSM are described in more detail. The main problems of applying each of the methods are outlined. The main problem is the discrepancy between the classification of roads from the OSM and the classification of roads of the Russian Federation adopted in the regulatory documents. Variants of simplifying the construction of the road network graph in the transport model are suggested.
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Yao, Fei, Shun Ying Zhu, Qing Yuan Liu, Yu Wu, and Jun Di Wu. "Operative Methods for Traffic Organization during Multiple Projects." Applied Mechanics and Materials 361-363 (August 2013): 2339–43. http://dx.doi.org/10.4028/www.scientific.net/amm.361-363.2339.
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Multiple urban projects constructed at same time block many roads, which increases the difficulty for traffic organization. Considering the characteristics of multiple projects, took construction method, construction procedure, land development, traffic environment and traffic flow into account, this paper proposes a workflow for traffic organization, recommends building temporary road and reconstructing branch road to undertake all the traffic from blocked roads. Selecting Jiangcheng Avenue complex project as a case, four methods were put forward for keeping traffic uninterrupted during construction with different temporary road route designs and traffic management measures.
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Dukiya, Jaiye, Ghenga Adeniyi, and Taiye Adejumo. "Assessment of Abuja-Kaduna “Trunk A” Carriageway Drains and its Implications on National Development." Journal of Civil Engineering Frontiers 4, no. 01 (January 1, 2023): 01–07. http://dx.doi.org/10.38094/jocef40158.
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The development of road transport in Nigeria dates back to 1910, when the existing bush pathways were converted into motorable highways. When the country witnessed a modernized network of important roads for articulated vehicles and passenger automobiles at the conclusion of the Second World War. Since 1975 and via the third and fourth Development Rolling Plans in Nigeria, the government at all levels has used road construction as a tool of pollution control since it impacts people's socioeconomic lives. As a result, many road construction projects are failing long before the worldwide standard lifespan of 20 to 25 years. This study evaluates the carriageway cambering condition, which is one of the primary fundamental elements influencing highway durability. It determines the carriage water drain and road pounding by vehicular weight transfer along the "A2" trunk route linking Lokoja, Abuja, Kaduna, Zaria, and Kano. According to the study, the gradient of all the portions of the road rehabilitated tends to be zero camber, resulting in the occurrence of visible surface folding, potholes, and pounding ln a defined pattern. It is thus recommended that all major road constructions in Nigeria be subjected to cambering tests prior to project delivery and utilisation in order to reduce the economic waste expended on constant repairs of this and other such roads in a country, which mostly transport its goods and services on roads.
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Huang, Jinghan. "Discussion on the Problems of Municipal Road Construction Management and Its Countermeasures." Highlights in Science, Engineering and Technology 95 (May 17, 2024): 35–39. http://dx.doi.org/10.54097/tm7bqy72.
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With the rapid development of China's economy, the state has put forward higher requirements for urban and rural construction planning. The construction of municipal roads has entered a high-quality development stage. However, affected by the construction environment, construction period, facilities, and other factors, municipal road construction still has a series of quality problems. This paper focuses on problems in municipal road construction, analyzing issues comprehensively from the perspectives of construction management systems, construction safety supervision, and equipment management. Countermeasure proposals are then provided to address these issues and improve the safety management of municipal engineering projects. The insights gained also offer valuable references for the construction management of municipal road projects in the industry. In conclusion, this paper aims to identify and address key challenges in municipal road construction through a comprehensive analysis of construction management, safety supervision, and equipment management. The proposed countermeasures not only contribute to enhancing the safety management of municipal engineering projects but also offer valuable insights for the industry's overall construction management of municipal road projects.
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MARININ, Yevgeniy I., and Tatyana V. DORMIDONTOVA. "ABOUT CALCULATION OF TRANSITION CURVES AND THEIR INFLUENCE ON THE ECOLOGICAL SAFETY OF ROADS." Urban construction and architecture 4, no. 4 (December 15, 2014): 80–84. http://dx.doi.org/10.17673/vestnik.2014.04.12.
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Method of calculating of transition curve required for design of roads turns, procedure of its construction insitu and its impact on ecological safety and reliability are presented. Questions of transition curves construction are considered. Analysis of calculation of trackway broadening is presented. Problems of clothoid application when tracing for organization of smooth slopes and increase of traffi c safety level are pulled down. Improvement of operational characteristics of design, construction and operation of roads develops production and economic level of road-construction enterprises, improves quality, reduces cost and improves ecological indexes of road-building materials, raises the eff ectiveness and ensures road traffi c safety.
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Gaughran, Aoibheann, Enda Mullen, Teresa MacWhite, Peter Maher, David J. Kelly, Ruth Kelly, Margaret Good, and Nicola M. Marples. "Badger territoriality maintained despite disturbance of major road construction." PLOS ONE 16, no. 9 (September 3, 2021): e0242586. http://dx.doi.org/10.1371/journal.pone.0242586.
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Road ecology has traditionally focused on the impact of in-situ and functional roads on wildlife. However, road construction also poses a major, yet understudied, threat and the implications for key aspects of animal behaviour are unknown. Badgers (Meles meles) have been implicated in the transmission of tuberculosis to cattle. There are concerns that environmental disturbances, including major road construction, can disrupt badger territoriality, promoting the spread of the disease to cattle. To address these knowledge gaps the ranging behaviour of a medium-density Irish badger population was monitored using GPS-tracking collars before, during, and after a major road realignment project that bisected the study area. We estimated badgers’ home range sizes, nightly distances travelled, and the distance and frequency of extra-territorial excursions during each phase of the study and quantified any changes to these parameters. We show that road construction had a very limited effect on ranging behaviour. A small increase in nightly distance during road construction did not translate into an increase in home range size, nor an increase in the distance or frequency of extra-territorial excursions during road construction. In addition, suitable mitigation measures to prevent badger deaths appeared to ensure that normal patterns of ranging behaviour continued once the new road was in place. We recommend that continuous badger-proof fencing be placed along the entire length of new major roads, in combination with appropriately sited underpasses. Our analysis supports the view that road construction did not cause badgers to change their ranging behaviour in ways likely to increase the spread of tuberculosis.
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Kamenchukov, Aleksey Viktorovich. "Quality road surfacing: two stages of control over design concept." Урбанистика, no. 4 (April 2020): 99–109. http://dx.doi.org/10.7256/2310-8673.2020.4.34295.
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This article examines the questions of improving the quality of design concepts on construction and reconstruction of roads. The primary subject of this research is the road surface, the quality of which directly affects the convenience and safety of traffic. The author also assesses the effectiveness of the system “subgrade – road surface” in the conditions of cyclical dynamic load from vehicles and temporal variability of the characteristics of soil ground-geological environment. An overview is conducted on the relevant requirements to engineering of road surface and efficiency assessment of design concepts. The author considers the national and foreign experience of road construction, including modern software solutions. The two key aspects of selection and efficiency assessment of design solutions are formulated. The article describes the concept, algorithm and results of implementation of comprehensive methodology for assessing efficiency of engineering and construction of road surfaces. Detailed analysis is conducted on the stages of mathematical modeling and effectiveness of the system “subgrade – road surface”. An undisputable scientific novelty of this research consists in application of the modern mathematical apparatus, methods and techniques of linear programming, together with the leading company on the development of software for design and construction of roads. The necessity and practical importance of the elaborated concept on efficiency assessment of design concepts is confirmed by implementation into the practice of road construction. The conclusion is made that the application of integrated index of the effectiveness of construction of road surfaces, coupled with software packages for assessing the stress-deformed condition of soil ground-geological systems, allow eliminated the design errors and ensure maximal reliability and safety of roads under construction of reconstruction.
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Naderializadeh, Nader, and Kevin A. Crowe. "The effect of the density of candidate roads on solutions in tactical forest planning." Canadian Journal of Forest Research 48, no. 6 (June 2018): 679–88. http://dx.doi.org/10.1139/cjfr-2017-0176.
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In this paper, we inquire into whether, and by how much, the use in tactical planning of a dense set versus a sparse set of candidate roads can reduce the two major costs (construction and transportation) of forest operations. This inquiry is conducted by using an optimal road location model to generate dense and sparse sets of candidate roads for three different problem instances. These problem instances were then solved using a mixed integer representation of the integrated tactical planning problem. The results show that the use of a dense set versus a sparse set of candidate roads, for all three problem instances, yielded solutions with a mean decrease in transportation and construction costs of 34.34% and 6.94%, respectively. The mean increase in revenue was 1.06%, and the mean increase in the objective function value (revenue minus the total road construction and transportation costs) was 5.62%. In addition, the mapped solutions reveal the spatial attributes of a lower versus a higher cost road network: straighter roads and more efficiently located forks within the road network. These results were obtained to illustrate how reductions in the costs of transportation and road construction can be achieved in tactical planning.
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Wang, Wei. "Construction Technology and Safety Monitoring Measures of Road and Bridge Engineering." Journal of Architectural Research and Development 5, no. 5 (September 28, 2021): 32–35. http://dx.doi.org/10.26689/jard.v5i5.2542.
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With the acceleration of urbanization and the continuous improvement of urban infrastructure construction, roads and bridges, as an important infrastructure content in China, directly affect people’s daily travel. Therefore, the construction and management of roads and bridges must be improved to ensure the quality and safety of roads and bridges and effectively prevent safety accidents. Strengthen the management of road and bridge construction through safety monitoring, improve the safety factor of the project and ensure people’s travel safety. This paper mainly analyzes the common diseases and construction technology of road and bridge engineering construction, and puts forward safety monitoring measures.
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Bērziņa, Dace. "Construction Of Express Roads In Latvian State Main Road Network." IOP Conference Series: Materials Science and Engineering 1202, no. 1 (November 1, 2021): 012004. http://dx.doi.org/10.1088/1757-899x/1202/1/012004.
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Abstract Latvian State Road Development Strategy for 2020 – 2040 was approved in the year 2020. It is a vision that includes long-term perspectives, strategic goals, tasks and priorities for road network development, and it is created for more efficient planning of state road network development, as well as, attracting additional funding for state owned roads. The aim of the Strategy 2040 is to create an efficient road network ensuring that the bypass of the Riga City is accessible within two hours from every national and regional development centre in Latvia. Development centres would be accessible within 45 minutes from every Latvian urban settlement along state regional and local roads. The strategic task is to create sections of express roads in the total length of 1000 kilometres thus improving traffic safety and reducing the emissions of greenhouse gases. When creating the Strategy 2040 both the changes in traffic and road use and the changes in the location of population were studied. The Strategy foresees that high-speed express road sections would connect the Riga City with the biggest cities. The proposed plan of road network development is created with the aim to cover as large a population as possible. Special attention is paid to the Riga City, as it serves as the central hub for Latvian and Baltic transportation. After the implementation of the Strategy 2040, the Riga City would be reached within 30 minutes from the nearest development centres.
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D. S., Prof KHORATE. "ANALYSE THE EFFECT OF USE OF PLASTIC WASTE IN BITUMINOUS MIXTURE ON ITS STRENGTH AND OTHER PROPERTIES." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 04 (April 29, 2024): 1–5. http://dx.doi.org/10.55041/ijsrem32234.
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The waste materials are always a problem for the environment, some waste may be disposed easily and some cannot. Plastic is also a kind of material whose disposal is always a tedious job. The disposal of waste effected the environment drastically, for minimizing this effect several research in various field is going on to recycle plastic safely. One of its ways is to use the waste plastic in the road construction Plastic Road is a need of an hour as they not only consume waste plastic in an eco-friendly way, but also helpful in increasing the quality of the road. In the review paper we will thoroughly study some of the methods and technique through which plastic is used in the road construction and how these technologies suits in various conditions. Significant environmental and economic problems are created because all forms of plastic like carry bags, wrappers, chocolates, chips, hand bags, cold drinks bottles and lids of all bottles. Utilization of waste plastic bags in bituminous mixes has proved that these enhance the properties of mix in addition to solving disposal problem. The processed waste plastic, when added to hot aggregate will form a fine coat of plastic over the aggregate and such aggregate when mixed with the binder is founds to give higher strengths, higher resistance to water and better performance over a time period. Therefore, plastic roads, is a simple way to make eco-friendly constructions. The innovative technology not only strengthened the road construction but also increased the road life as well as will help to improve the environment. The main objective of this Paper is to discuss the significant of plastic in terms of innovative methodology for treatment and disposing and to provide solution to reduce, recycle, reuse by applying it for pavement and road construction. Key Words: Plastic, Road Construction, Environment, Binder, Strength , Disposal
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Corbett, Matt, and Juan Gaviria. "Integration of Comprehensive Environmental and Social Measures into Low-Volume Road Design for the Hills of Nepal." Transportation Research Record: Journal of the Transportation Research Board 1819, no. 1 (January 2003): 118–26. http://dx.doi.org/10.3141/1819a-18.
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Road construction through Nepal’s hilly and mountainous terrain has historically had a significant impact on the local environment and land-owners, primarily because of the steep and often unstable terrain traversed, monsoonal climate, necessity for low-cost roads, and no landowner compensation for compulsorily acquired land. The design phase of the Road Maintenance and Development Project sought to incorporate comprehensive environmental and social measures into the design of low-cost roads in the western hills of Nepal to achieve more stable and lower-impact roads. The project involved the design of 196 km of new roads and 253 km of upgrading to existing roads by integrating engineering, environmental, social, and economic factors throughout the design process. The project began with the screening of candidate project roads on the basis of economic, environmental, and social factors by using a weighted scoring system to select those roads that would be most advantageous in relation to passenger and goods transport and associated economic development, while minimizing adverse environmental and social impacts. Proposed new road alignments were refined primarily through a walkover survey by a multidisciplinary team, ensuring that environmental and social issues were incorporated into this key stage of road design, when significant impacts can be avoided. Detailed road design incorporated comprehensive environmental management and social planning through integrated planning. Project outcomes include road designs that would increase road stability and have fewer construction impacts and the first comprehensive land and property compensation program for road construction in Nepal.
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Jakubėnaitė, Ieva, Audrius Vaitkus, and Judita Škulteckė. "APPLICATION OF PERMEABLE ASPHALT PAVEMENT CONSTRUCTION IN TRAFFIC AREAS." Mokslas - Lietuvos ateitis 16 (June 3, 2024): 1–6. http://dx.doi.org/10.3846/mla.2024.21287.
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Lithuania’s total road network consists of more than 84000 km of roads, of which more than 21000 km are national roads. Roads of national importance are managed by the Lithuanian Road Administration. The remaining roads are classified as local roads managed by local governments. Road installation and maintenance often lead to the problem of surface water drainage and accumulation on the road surface. The aim of this study is to identify and propose the most appropriate permeable asphalt pavement construction to solve this problem, taking into account the purpose of the application and the class of pavement structure. The scope of the study identifies three recommended permeable asphalt pavement designs for the installation of DK 0.1-DK 1 pavement structures in ancillary streets, parking and recreation areas where light vehicle traffic with occasional heavy vehicle traffic. It has also been found that in areas of high traffic intensity, it is appropriate to use an alternative to permeable pavements – a permeable pavement design for the shoulder, where the roadway structure is impermeable to water and the shoulders are permeable to water (a permeable pavement structure is installed). The recommended permeable asphalt pavement structures, when properly selected, reduce the risk of flooding on the roadway.
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Mudiyono, R. "Evaluating the Road Construction Feasibility Performance of the Rigid Pavement in the Flood-Prone Area: A Case Study of Indonesia." IOP Conference Series: Earth and Environmental Science 971, no. 1 (January 1, 2022): 012007. http://dx.doi.org/10.1088/1755-1315/971/1/012007.
Full textAbstract:
Abstract Rigid pavement is one of several pavement types often used in road construction. This pavement has sufficient flexural strength to transmit the stresses of the wheels over a wider area underneath. During construction, this road uses concrete slabs with or without steel bars. This slab can be installed either on the sub grade of foundation, the layers of foundation or on the sub grade. Planning must examine the thickness level of concrete pavement required to handle the load with the concrete strength, taking into account the characteristics of the pavement that are capable of dispersing the load widely to the sub grade. This study aimed at evaluating the road construction performance of the rigid pavement in the flood-prone area of Kaligawe Road Semarang Indonesia. Data were collected by testing the pavement under certain specifications during the rainy season, particularly in the flooding time, and analyzed using the software of plaxis 3D foundation. Result of the study showed the pavement on Jl. Kaligawe Road Semarang Indonesia was in the “safe” category, as a result, the design of which could serve as a model for constructing roads with similar qualities elsewhere.
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Tian, Mi Mi, Mao Qing Fang, and Yi Zhang. "Exploration about the Ecological Model of Road Landscape in the Construction of New Rural Landscape." Applied Mechanics and Materials 193-194 (August 2012): 235–38. http://dx.doi.org/10.4028/www.scientific.net/amm.193-194.235.
Full textAbstract:
Along with the rapid development of social economy, a new socialist countryside landscape construction is in full swing on the land of China. Handling rural road landscape development problems in new rural construction is the content need to explore and summarize in the practice. This paper, though the analysis about composing factors of agricultural landscape and road landscape, combining with the ecological design principles, explores ecological model of ecological agriculture traffic and road landscape in the future from the aspects of township roads, village roads, field roads.
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Drazic, Srdjan, Radovan Lucic, Milorad Danilovic, and Dusan Stojnic. "Forest truck road construction in the Republic of Srpska: The volume of works and average prices." Bulletin of the Faculty of Forestry, no. 121 (2020): 9–26. http://dx.doi.org/10.2298/gsf2021009d.
Full textAbstract:
In most cases, the planning of funding for the construction of a forest truck road causes difficulty to planners. Although a forest management plan (FMP) indicates the number of roads to be built annually for the next development period with the average cost of construction, this information is quite general and based on experiential estimates. The aim of this paper is to determine the average cost of forest truck road construction in the Republic of Srpska, as well as to calculate the average costs of individual phases of operation. The obtained average cost of forest road construction, resulting from the analysis of 71 major projects in 11 forest areas encompassing 178 km of forest roads, is 32,490.87 ?/km. The obtained results point to the interesting fact that forest road construction is the most expensive in hilly areas with an altitude ranging between 200 and 500 m (34,298.28 ?/km), while it is the cheapest (30,922.88 ?/km) in medium mountainous areas, with altitudes between 1000 and 2000 m.