The goal of double carbon reflects the new goals and requirements of China’s entry into a new development stage. In this regard, the construction industry, as a large producer of carbon emissions, should focus on emission reduction. In the whole life cycle of buildings, the carbon emission intensity in the physicochemical stage is the largest, so we should focus on the carbon emission in the physicochemical stage. Compared with the cast-in-situ concrete floor slab, the bidirectional prestressed precast hollow slab (BPPHS) has the characteristics of environment-friendly under the condition of meeting the building stress, and the manufacturing process of precast floor slab is more standardized, which can give full play to the performance of components. Based on BIM (Building Information Modeling) and LCA (Life Cycle Assessment) theory, and in the case of tram transportation, this paper studies the carbon emission of prefabricated hollow floor slab used in prefabricated buildings in the building stage. The research shows that the use of BPPHS reduces the carbon emission of 197,332.81 kg in the whole physicochemical stage, and the emission reduction rate is 46.52% compared with the cast-in-place slab. Compared with the ordinary prefabricated laminated plate, the emission reduction rate reaches 45.40%; The carbon emission sources in the materialization stage of prefabricated buildings are divided into production stage, transportation stage and construction stage. The carbon emission reduction in each stage accounts for 42.29%, 46.18% and 51.08%, respectively, in each stage of cast-in-situ floor slab. Compared with ordinary precast slab, the emission reduction rates of each stage are 34.67%, 53.60% and 47.84%, respectively. The emission reduction potential of BPPHS is very considerable. It can not only promote the development of prefabricated buildings but also have lower carbon than conventional precast slab. The study provides new ideas for reducing building carbon emissions, which will also provide reference for industry entrepreneurs and relevant governments to realize low-carbon economy and sustainable development.
The integration of Artificial Intelligence (AI) into the construction industry is transforming traditional practices and demanding a new set of competencies from professionals. However, a comprehensive understanding of the specific skills required remains limited. Addressing this gap, a systematic literature review and meta-analysis is conducted in this study to identify and synthesise the AI-related skillsets essential for construction professionals to effectively integrate AI into project delivery. Employing the PRISMA framework and scientometric analysis using VOSviewer, the study analysed 17 key publications sourced from multiple academic databases. The findings reveal eight core AI skill domains: Data Literacy and Management, AI and Machine Learning Fundamentals, Programming and Computation, Digital Collaboration Tools, AI-Driven Decision Making, Cybersecurity Awareness, Change Management and Adaptability, and Communication and Collaboration. The study also highlights a global disparity in research contributions, with notable under-representation from Africa and North America. These insights underscore the urgent need for targeted training, policy development, and collaborative research to bridge the AI skills gap in the construction sector. In addition, the study reveals that, the underdevelopment of AI skills among construction professionals is shaped by a complex interplay of educational, cultural, infrastructural, economic, policy-related, and industry-specific factors. This review provides a foundational roadmap for developing initiatives aimed at equipping construction professionals with the competencies necessary to thrive in an AI-enhanced built environment.
Matt Kammer-Kerwick, Anirudh Muralidharan, Adriann Oommen
et al.
This study explores the adoption and effectiveness of a trust and cooperation-based neighborhood model, designed to foster collaboration and reduce friction among stakeholders in operational environments characterized by complex supply chains and multi-stakeholder engagements. Grounded in the psychological theories of reciprocal exchange, the model envisions a ’neighborhood’ where participants collaborate as partners, fostering predictable outcomes, reduced risks, and greater financial stability. Although the model is intended for operational environments requiring intensive trust and coordination, this research tested its application within the construction sector. The work was conducted in two exploratory phases, both in the United States: a concept test survey followed by pressure testing the model through a series of workshops. The concept test survey assessed industry's interest in and compatibility with this neighborhood approach. Results indicated strong support for the model's collaborative approach highlighting its potential to address the issues of mistrust in the industry. The second phase involved a series of codesign workshops with key industry stakeholders, including a project owner, a general contractor, an architect, and several legal experts. These workshops confirmed the model's strengths in promoting cooperation and transparency but also identified challenges, such as the need for better integration with existing legal frameworks and addressing power dynamics within the neighborhood. This study suggests that the trust and cooperation-based neighborhood model has the potential to transform collaboration in other operational environments such as healthcare, manufacturing supply chains, and technology development. The model also has the potential to be integrated into other cooperative models and frameworks.
Fatal and serious injury rates remain unacceptably high in the construction industry. Leadership plays a critical role in safety management and serious and fatal injury prevention. However, limited research has examined industry practitioners’ perceptions of leadership and how it influences safety outcomes, particularly in the prevention of serious and fatal injuries in the construction industry. Therefore, a theoretical model for capturing perceptions of safety leadership was developed from a systematic literature review. To ensure that the labels and language used in the model can be understood by industry practitioners, a Delphi study was conducted involving twelve experts. Over three iterative rounds, the model was refined to include five leadership styles, seventeen elements, and eighty-five descriptive statements spanning the range from laissez-faire to transformational leadership. The refined model provides a comprehensive framework for understanding safety leadership and serves as a foundation for future empirical testing with frontline construction workers.
Industrial safety. Industrial accident prevention, Medicine (General)
Awe Foluso C., Akinluyi Muyiwa L., Okeke Francis O.
et al.
The building and construction industry (BCI) is made of diverse professionals and despite its emphasis on quality project delivery, the essentials of site meetings have not been adequately explored. The study examined the fundamental aspects of Site Meetings and their impact on the execution of construction projects in the building sector, specifically focusing on higher education institutions in Ekiti State, Nigeria. An online survey questionnaire was used and administered to the Consultants and Contractors, within Higher Institutions in Ekiti State, and only seventy-four (74) Respondents filled out the questionnaire and submitted it. The results indicated that 67.6% and 31.1% strongly agreed and agreed respectively that site minutes are important to project implementation. 50% each strongly agreed and agreed that the agenda is a critical tool for project implementation. 37.7% of respondent do not have a definite time for sending notice of a meeting while 10.8% do not have an agenda for their site meetings, also, 52.7% make the minutes of site meetings available before the meeting and 47.3% during the meeting. The study recommended that all stakeholders should take the essentials seriously. Notice of meetings, agendas, and Minutes should be prepared and sent ahead of site meeting dates.
Ahsan Waqar, Khaled A Alrasheed, Abdul Mateen Khan
et al.
Abstract This research examines how Holistic Building Design (HBD) affects Lifecycle Management of Building Structures in the ever-changing construction market. HBD includes adaptability, environmental sustainability, maintenance, and disaster preparation. It is a key idea in the present boom in resilient and sustainable building techniques. A surprising dearth of quantitative empirical research on HBD’s impact on LMBS considering the field’s growing importance. This study uses a quantitative method to explore the relationship between essential HBD components and LMBS outcomes especially Extended Service Life (ESL) and Optimized Performance and Value (OPV) are critical factors to address this information gap. The quantitative study polled 171 construction industry professionals and utilized Structural Equation Modelling to examine the data. This approach was selected for its ability to explore complex relationships between variables and constructs. HBD components Adaptability and Retrofitting (AAR), Environmental Considerations and Sustainability (ECS), Maintenance and Inspection Programs (MIP), and Resilience and Disaster Preparedness (RDP) profoundly influenced the Enhanced Service Life (ESL) and Optimized Performance and Value (OPV) elements of LMBS. Building adaptation and retrofitting, maintenance and inspection programs, and other activities increased building value and lifespan. These findings have major theoretical and practical implications. The work potentially fills a research gap by providing actual evidence on HBD-LMBS linkages. Practically, the results advise construction industry specialists to use HBD ideas for sustainable building management. Finally, our work illuminates the vital roles of HBD components in LMBS and paves the way for ecologically friendly building approaches.
New attempt to answer the questions: 1) what aquatic biological resources are possessed in the Russian Far-Eastern Seas and North Pacific and what is their quantity? 2) which of them and how many are caught annually? 3) are these resources managed rationally in Russia? 4) and what is the reason for current situation and can it be improved? Based on the data of trawl surveys, a GIS is created with maps of the biological resources distribution, separately for actually harvested, potentially commercial, and non-commercial ones. The biomass, potential yield and its cost are calculated for the Chukchi, Bering, Okhotsk, and Japan Seas and North-West Pacific. These water bodies are ranked by their value for commercial fisheries. The obtained estimates are compared with the data on annual catch, export, import, and consumption of fish products in Russia. Possibility of larger landing is concluded for each water body, in terms of the harvested species biomass. The harvest from the Okhotsk Sea alone can reach more than 5.2 million tons that exceeds the level of «strategic ceiling» for the entire Russian fishery proposed in «Strategy for development of the fisheries complex of Russian Federation for the period to 2030». For the whole water area under consideration, this level can be exceeded by 3.5–4.7 times, or even by 5.6 times if the potentially commercial species will be exploited. Dynamics of domestic catch, trade and consumption of the biological resources are analyzed. The conclusion is that socioeconomic conditions rather than the state of biological resources are the reason that Russia still does not harvest so much. Some measures are proposed to improve the management of the Russian fishery industry. The obtained results cah alsobe used for maintenance rational use of the biological resources, food security, and nature protection, including evaluation of cost for biological resources in certain water bodies and assessment of damage caused to the nature and biological resources by pollution, construction, oil and gas production, or technogenic accidents.
Elena V. Pakulina, Oksana D. Pokrovskaya, Alexander A. Migrov
Background. The article is devoted to the analysis of the state of the transport and logistics system of Russia in the context of the sanctions policy of the West, the classification of logistics chains, the identification of factors and risks affecting the stability of logistics flows in modern conditions.
Materials and methods. Materials from open Internet sources, logistics theory, systems theory, systems approach, comparison were used.
Results. An analytical review of the situation of Russia’s transport and logistics systems in the context of sanctions imposed by Western countries in 2022 was carried out. The risks affecting or capable of affecting the development and sustainability of logistics chains are identified.
Conclusion. Based on the results of the study, a new classification of logistics chains is proposed, taking into account changes in the construction of the logistics business, as well as a new standard logistics chain operating under sanctions.
The corrosion of steel is a significant and costly problem faced by various industries every day. Low-carbon steel is particularly important in the construction industry, where durable and long-lasting structures such as bridges, tunnels, towers, buildings, airports, roads, factories, and trains are essential. So, preventing the corrosion of steel has become crucial. For this reason, in this study, ZrO2 solutions were prepared using the sol–gel technique, and steel samples were coated by dip coating in these solutions once, three times, and five times. In addition, a polymer consisting of 3-glycidyloxypropyltriethoxysilane (GLYEO), 1,1,1-Tris (4-hydroxyphenyl) ethane (THPE), and N-2-aminoethyl-3-aminopropyl trimethoxysilane (DAMO) monomers was added to the prepared ZrO2 solutions, and another solution was obtained. The low-carbon steel surfaces were coated by the dip coating method only once with this modified solution, creating a one-layered coating. The morphology and surface characteristics of the coatings were examined using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS). The corrosion resistance of the coatings was evaluated using electrochemical impedance spectroscopy (EIS) in an aqueous solution containing wt. 3.5% NaCl. The measurement results indicate that the ZrO2 coatings with added polymer exhibit better corrosion resistance compared to both the ZrO2 coatings without the polymer addition and galvanized coatings.
The construction industry is known as a hazardous industry because of its complexity and strategic nature. Therefore, it is important to know the main causes of occupational accidents to prevent fatal occupational accidents in construction industry. At building construction sites, workers performing tasks are continuously exposed to risks, not only emerging from their own mistakes but also from the mistakes of their co-workers. A great deal of studies investigating risks and preventing occupational hazards for the construction industry has been carried out in the literature. The quantitative conventional methods mostly use either probabilistic techniques or statistics, or both, but they have limitations dealing with the ambiguity and fuzziness in information. In this study, to overcome these limitations, an applicable and improved approach, which helps construction managers to propose preventive measures for accidents on construction sites, is proposed to simplify the risk assessment. It is shown that the Fuzzy Decision Making Trial and Evaluation Laboratory (DEMATEL) method can evaluate causal factors of occupational hazards by a cause–effect diagram and improve certain safety measures on construction sites. In addition, sensitivity analysis is conducted to verify the robustness of the results.
Abstract As prefabricated prefinished volumetric construction (PPVC) has gained considerable attention worldwide in the past few years, decision-making for implementing PPVC becomes critical. As a result, this study aims to (1) identify the key decision-making factors (DMFs) for the adoption of PPVC, (2) propose a scoring approach that can assess the feasibility of using PPVC for a given project, and (3) develop a Knowledge-Based Decision Support System for Prefabricated Prefinished Volumetric Construction (KBDSS-PPVC) that can facilitate the decision-making for PPVC implementation. To achieve these goals, a comprehensive literature review and pilot interviews with industry experts were conducted first, followed by a structured questionnaire administered to 41 construction organizations in Singapore. Results of the questionnaire reported 19 DMFs of PPVC, which were then used to create the PPVC scoring approach. Subsequently, the KBDSS-PPVC was developed using the created PPVC scoring approach. Lastly, a panel of industry experts validated the developed KBDSS-PPVC, by utilizing the tool for their current construction projects. Validation results showed that the developed system could provide reliable recommendations for the industry practitioners on the decision-making of PPVC. Existing literature has seldom addressed the decision-making of PPVC, therefore, this study bridges the knowledge gap and contributes to the current body of knowledge. Furthermore, the developed KBDSS-PPVC would be useful to the industry practitioners as well, because it can help them achieve a better and easier decision-making of PPVC.
Lihnida Stojanovska-Georgievska, Ivana Sandeva, Aleksandar Krleski
et al.
The building sector nowadays has come to the stage where it needs a “digital” renovation. This is to be accomplished by an introduction of change into the methodology of construction and using new tools and technologies, such as BIM technology. This paper gives an insight into the status of BIM adoption in North Macedonia. It presents the threefold actions toward introduction of BIM in the national construction industry. These actions refer to scanning the current situation regarding digitalization of the sector, then taking promotional actions to express the benefits of BIM, and finally identifying and proposing the most suitable measures, summarized in the proposal of the National Roadmap for BIM adoption. The methods used consist of a brief literature review of the global status of BIM development. Then, the results of a survey conducted on more than 300 respondents representing a sample of building professionals in the country are discussed, and the barriers for successful BIM adoption are accordingly identified. The next step is to showcase the potential benefits of BIM for assessment of energy performance of buildings. As a final point, the conclusions drafted toward identification of the most important challenges are addressed in the proposed National Roadmap for BIM adoption.