The construction industry, known for its low productivity, is increasingly utilising software and mobile apps to enhance efficiency. However, more comprehensive research is needed to understand the effectiveness of th...The construction industry, known for its low productivity, is increasingly utilising software and mobile apps to enhance efficiency. However, more comprehensive research is needed to understand the effectiveness of these technology applications. The PRISMA principles utilised a scoping review methodology to ascertain pertinent studies and extract significant findings. From 2013 onwards, articles containing data on mobile applications or software designed to enhance productivity in the construction sector were obtained from multiple databases, including Emerald Insight, Science Direct, IEEE Xplore, and Google Scholar. After evaluating 2604 articles, 30 were determined to be pertinent to the study and were subsequently analysed for the review. The review identified five key themes: effectiveness, benefits, successful implementation examples, obstacles and limitations, and a comprehensive list of software and mobile apps. In addition, 71 software and mobile apps have shown potentially how these technologies can improve communication, collaboration, project management, real-time collaboration, document management, and on-the-go project information and estimating processes in the construction industry, increasing efficiency and productivity. The findings highlight the potential of these technologies such as Automation, Radio-Frequency Identification (RFID), Building Information Modeling (BIM), Augmented Reality (AR), Virtual Reality (VR), and Internet of Things (IoT) to improve efficiency and communication in the construction industry. Despite challenges such as cost, lack of awareness, resistance to change, compatibility concerns, human resources, technological and security concerns and licensing issues, the study identifies specific mobile applications and software with the potential to enhance efficiency significantly, improve productivity and streamline workflows. The broader societal impacts of construction software and mobile app development include increased efficiency, job creation, and sustainability.展开更多
In order to realize the accurate prediction of the total output value of construction industry in the future,the grey prediction model is used to compare the measured value with the predicted value from 2012 to 2021,a...In order to realize the accurate prediction of the total output value of construction industry in the future,the grey prediction model is used to compare the measured value with the predicted value from 2012 to 2021,and based on the existing data,the total output value of construction industry in Jiangxi Province in the next five years is predicted.The results show that the grey prediction model has a good prediction effect,and the error between the predicted value and the measured value is within 14%,which provides a basis for policy adjustment and resource optimization.展开更多
Based on the data of the construction industry in Henan Province, China, from 2005 to 2020, the high-quality development level of the construction industry in Henan Province is measured. Firstly, this paper constructs...Based on the data of the construction industry in Henan Province, China, from 2005 to 2020, the high-quality development level of the construction industry in Henan Province is measured. Firstly, this paper constructs the indicator system based on the high-quality development theory and the characteristic of the construction industry from seven dimensions: industrial scale, industrial efficiency, industrial benefits, industrial innovation, industrial risk, industrial potential, and the green development of the construction industry. Secondly, using the global principal component analysis (PCA) method to measure the high-quality development level. Thirdly, cluster analysis is applied to measure the relative changes of various dimensions in different stages. The results show that overall the high-quality development level of the construction industry in Henan province is increasing, but different indicators perform differently in various stages, and the changes in real estate policies have a significant impact on this. Finally, based on these findings, we think it is better to reduce real estate dependence, promote the application of new materials and technologies and maintain the stability of real estate policies.展开更多
The concept of circular economy has gained recognition as a way to manage waste and conserve resources sustainably,and has the potential to transform the construction industry.This is particularly relevant in the cons...The concept of circular economy has gained recognition as a way to manage waste and conserve resources sustainably,and has the potential to transform the construction industry.This is particularly relevant in the construction industry due to the significant amounts of waste generated during the construction and demolition process.This study examines the perceived importance and effectiveness of strategies related to the circular economy in the construction industry.The data were collected through a survey administered to professionals in the construction sector,capturing their perceptions of various strategies.The results reveal that most strategies received high mean ratings,indicating their perceived significance.Strategies such as waste management and recycling facilities,design for disassembly,and prioritising the use of renewable and sustainable materials were highly valued by the respondents.Additionally,statistical analyses confirmed the significance of these strategies.However,some strategies received comparatively lower ratings,suggesting the need for further attention and improvement.The findings have important implications for policymakers,industry professionals,and stakeholders,guiding decision-making and resource allocation.By prioritising and implementing the identified strategies,stakeholders can drive the adoption of circular economy principles,enhance resource efficiency,and reduce waste in construction practices.Furthermore,this study lays the foundation for future research,highlighting the importance of exploring barriers to implementation,understanding synergies and trade-offs among strategies,conducting longitudinal studies to assess long-term impact,and broadening the participant pool for a more comprehensive understanding.Overall,this study contributes to the growing body of knowledge on the circular economy in the construction industry and provides valuable insights for promoting sustainability and circularity within the sector.展开更多
Background: The Occupational Safety and Health Council(OSHC) is committed to improve the safety performance of the high risk construction industry.In the past three years,about 40% of the fatal accidents in the constr...Background: The Occupational Safety and Health Council(OSHC) is committed to improve the safety performance of the high risk construction industry.In the past three years,about 40% of the fatal accidents in the construction industry were related to Renovation,Maintenance,Alteration and Addition(RMAA).Due to the poor safety record,some of the RMAA contractors have difficulty in obtaining the Employees' Compensation Insurance(ECI) cover in the market,or if they could obtain the ECI,the premium rate would be exceedingly high.In view of this,the OSHC,the Labour Department jointly launched"OSH Star Enterprise-Pilot Scheme on Safety Accreditation for the RMAA Industry",which prompts the industry to take practicable safety measures to improve the safety of working environment and reduce occupational injuries.The program also helps the stakeholders and insurers to identify safety-conscious contractors and thereby provide them with a favourable premium rate under the Employees' Compensation Insurance Residual Scheme(ECIRS).Objectives: The OSHC launches the Pilot Scheme to improve the safety performance of the RMAA industry through providing safety training,subsidizing enterprise to purchase safety equipment and providing safety audit.We also use financial incentive to encourage RMAA enterprises to join the Pilot Scheme-for those who are accredited as "OSH Star Enterprise"could receive a premium discount from the ERIRS when obtaining the ECI.The scheme also differentiates those safety-conscious and law-abiding enterprises from the poor performers,which helps the industry and public identifying the RMAA contractors who pay attention to work safety.Methods: The Pilot Scheme targets RMAA enterprises that employ less than 50 employees in Hong Kong.A three-pronged approach is used to improve the safety performance of the RMAA industry: the Pilot Scheme provides(1) financial support for the RMAA contractors to buy a transportable temporary anchor device and full body safety harness and its anchor system;(2) safety training on RMAA work safety and safety & health supervisor course;and(3) safety audit.Results: Enterprises that successfully pass the safety audit and satisfied the Scheme requirements will be accredited as"OSH Star Enterprise",which will be valid for two years.These enterprises can also be upgraded to"OSH Gold Star Enterprise"based on their continuous improvement in safety performance.OSHC will set up a register of OSH-accredited enterprises in RMAA works for reference of the public to facilitate their choosing of accredited contractors.The Employees' Compensation Insurance Residual Scheme Bureau will provide privileged premium rate for enterprises with OSH accreditation."OSH Star Enterprise"could enjoy 40% discounts when joining their insurance scheme.For example,a skilled worker's annual premium can be reduced by about HK $ 36,000.While,the "OSH Gold Star Enterprise"could enjoy 50% discounts when joining their insurance scheme,which means a skilled worker's annual premium can be reduced up to HK $ 45,000.Achievements: This Pilot Scheme offers practical assistance as well as attractive financial incentives for the RMAA industry to improve their safety performance.The Employees'Compensation Insurance Residual Scheme provides premium discounts for enterprises that have a good safety record.It provides incentive for RMAA contractors to actively participate in the Pilot Scheme.The Scheme demonstrates that by providing a safe working environment and appropriate personal protective equipment to workers,the enterprise not only helps to reduce the accident rate of the industry but also receive an economic return.The Pilot Scheme bridges stakeholders of RMAA industry,the government and the insurance industry creating an "all-win"situation.This partnership approach to prevent injuries and accidents in the construction industry could be an effective model for other industries.展开更多
In the field of the construction industry, logistics management has become an issue of concern which needs to be focused on in order to ensure effective, successful and timely execution of projects in the construction...In the field of the construction industry, logistics management has become an issue of concern which needs to be focused on in order to ensure effective, successful and timely execution of projects in the construction industry. Logistics management in construction is a multidisciplinary process which makes sure things are done at the right time, cost and quality as well as material supply and handling, schedule control, site infrastructure and equipment location, site physical flow management, traffic arrangements on and around the construction site, and information management related to all physical and services flow. This paper seeks to identify and evaluate the possible factors that affect logistics management in the construction industry and also to ascertain the current practices of inventory management and the effect on logistics management envisage by construction personnel’s and stake holders. A descriptive survey research was conducted with both structured and unstructured questionnaire and administered both via e-mail and by sending questionnaire link onto a WhatsApp platform groups of the respondents, and out of the 187 respondents that took part in the survey, 22 respondents feedback were incomplete so 165 member respondents results were analyzed representing 88.2% response rate. The survey results were analyzed, displayed and interpreted in the form of tables, bar charts, column chart and pie chart with the use of SPSS software. The research survey respondents </span><span style="font-family:Verdana;">were </span><span style="font-family:Verdana;">comprised of Project Managers, Project Coordinators, Foremen, Site Managers/</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">Officers, Logistics Managers, Inventory Managers and Laborers. The survey results revealed that majority of the total respondents are in the capacity or position as Logistics Managers and also have from 5 to 10 years working experience, and as well majority of the respondents have also attained Master’s degree qualification. It was also revealed that logistics management is greatly affected by the inability or the failure to embrace, adopt and integrate new and emerging technology and its approach into the logistics management system. Majority of the respondents also indicated that in general the adequacy of inventory management system was dissatisfied representing 63.8% of the total respondents. The construction industry not only needed to improve its inventory management systems but also to ensure appropriate inventory management techniques for enhancing high degree of accuracy, reduced cycle times and replenishment of stock. This usually accounts for the poor delivery and quality of work, accompanied with delays and other associated losses in project construction. For effective Logistics management to be achieved in the construction industry, the introduction of modern technology to carry out logistics functions in the construction industry should be paramount to the industry players.展开更多
The application of digital technology in the field of construction is still in its infancy, and the existing concrete framework of digital technology application in the construction industry and the study of applied e...The application of digital technology in the field of construction is still in its infancy, and the existing concrete framework of digital technology application in the construction industry and the study of applied ecological elements are not enough. The ecological elements of digital technology application in the construction industry are important factors that promote the healthy op</span><span style="font-family:Verdana;">eration of the entire digital technology application ecosystem. </span><span style="font-family:Verdana;">Using grounded theory, we compiled the data of 33 researchers who participated in </span><span style="font-family:Verdana;">semi-structured interviews, and obtained 4 main categories and 9</span><span style="font-family:Verdana;"> sub-categories of ecological elements of digital technology application in the construction industry. Among them, the digital technology application mechanism is the core category of ecological application elements. We also used the Bass model to analyze the application trend of digital technology in the construction industry. </span><span style="font-family:Verdana;">In 2040, the number of construction companies applying digital</span><span style="font-family:Verdana;"> technology will reach 98.66% of the maximum market potential.展开更多
This article analyzes the major stakeholders in the Brazilian construction industry from the viewpoint of the companies in this sector, as well as how these organizations relate to their stakeholders with regard to th...This article analyzes the major stakeholders in the Brazilian construction industry from the viewpoint of the companies in this sector, as well as how these organizations relate to their stakeholders with regard to the topic of sustainability in the construction. The study was based on the principle that the relationship with stakeholders is one of the foundations for the inception and continuity of activities toward sustainability. The findings of which show that the construction companies start the sustainability implementation process without the involvement of external stakeholders. This survey points out the difficulty faced by Brazilian construction companies in relating to their stakeholders. There is the perception that the customers and other actors do not value sustainability-oriented activities, but, at the same time, the relationship of the companies with these stakeholders is limited to disclosure of information. This characteristic of the industry reveals a need for sustainability projects that take into consideration, since their formulation, the stakeholders’ perceptions. The importance of this article lies in the recognition that, although the topic of sustainability is discussed at all levels, studies that examine how specific construction industries have been dealing with it are still rare.展开更多
The high-quality development of the construction industry fundamentally stems from the significant improvement of total factor productivity.Therefore,it is of crucial significance for promoting the development of the ...The high-quality development of the construction industry fundamentally stems from the significant improvement of total factor productivity.Therefore,it is of crucial significance for promoting the development of the construction industry to a higher level by scientifically and accurately measuring the total factor productivity of the construction industry and deeply analyzing the influencing factors behind it.Based on a comprehensive consideration of research methods and influencing factors,this paper systematically reviews the existing relevant literature on total factor productivity in the construction industry,aiming to reveal the current research development trend in this field and point out potential problems.This effort aims to provide a solid theoretical foundation and valuable reference for further in-depth research,and jointly promote the continuous progress and development of total factor productivity research in the construction industry.展开更多
The development of digital transformation in the construction industry has led to the increasing adoption of smart contracts.As programmable applications to automatically write,verify,and enforce transaction condition...The development of digital transformation in the construction industry has led to the increasing adoption of smart contracts.As programmable applications to automatically write,verify,and enforce transaction conditions,smart contracts can be used in different areas mainly to improve automation level,information security,and built digital environment enhancement.However,the smart contract is commonly mentioned as a blockchain appendage,while its unique connotation and value in the construction industry have not been recognized.Therefore,this study carries out a systematic review based on 81 research articles published from 2014 to 2021 on smart contract applications in construction to explore and highlight their potentials under domain-specific requirements.Results are analyzed according to research type categorization and domain codification.Eight research domains are identified,where the three most highly explored domains are contract and payment,supply chain and logistics,and information management.The integration of smart contracts with other innovative concepts and advanced technologies is analyzed.The applicability,benefits,and challenges of smart contract applications regarding different research domains are discussed.展开更多
The construction industry is one of the largest energy consumers in China. It not only uses energy directly but also consumes a large amount of embodied energy hidden in intermediate goods and services from other indu...The construction industry is one of the largest energy consumers in China. It not only uses energy directly but also consumes a large amount of embodied energy hidden in intermediate goods and services from other industries. This paper utilizes the multi-regional input-output(MRIO)model to measure the embodied energy consumption in China's construction industry at the province level. To quantify the backward and forward linkages between the construction industry and other industries, the energy-driven and energy-driving abilities of the construction industry are investigated for 30 provinces. The results show that the values of the energy-driven coefficients are significantly larger than the energy-driving coefficients, indicating that the construction industry is highly dependent on products from other industries and other regions, not vice versa. The construction industries in the southwest and northwest regions of China have the highest energy-driven coefficients, showing that the construction industries in west China heavily rely on indirect energy embodied in goods and services. This particularly applies in Guangxi and Hainan provinces, which have the highest energydriven abilities and the lowest energy-driving abilities. The findings can facilitate the policy-makers to examine the critical energy-saving paths.展开更多
Construction delay is a widespread issue in the construction industry of developing countries, and Nepal is no exception. These delays extend project durations and lead to cost overruns and disputes among stakeholders...Construction delay is a widespread issue in the construction industry of developing countries, and Nepal is no exception. These delays extend project durations and lead to cost overruns and disputes among stakeholders. To address this problem, this study aimed to identify and analyze the significant factors that contribute to construction project delays in Nepal. To gather data, a well-structured questionnaire was developed and administered to a sample of 100 participants, including contractors, consultants, and civil engineers. Various statistical tests were conducted to ensure the data’s integrity and consistency, such as reliability assessments and factor analyses. The findings of the study highlighted multiple factors contributing to delays in construction projects such as inadequate design, poor communication, and coordination among stakeholders, insufficient experience and planning by contractors, delays in material delivery and testing, labor-related problems including shortages and low qualifications, and external factors like regulatory changes and unforeseen circumstances. By identifying these major causes of construction project delays, this study presented insightful information that can contribute to the analysis and evaluation of project performance.展开更多
In a very real sense,China did not have a legal system of energy until 1978 when the policy of reform and opening-up was carried out.Over the 30 years since then,China has achieved great accomplishments in energy deve...In a very real sense,China did not have a legal system of energy until 1978 when the policy of reform and opening-up was carried out.Over the 30 years since then,China has achieved great accomplishments in energy development,which have attracted worldwide attention,展开更多
Urbanization and living comfort have revolutionized the construction industry. Many techniques and strategies have been used to improve the overall efficiency of construction and to reduce waste during and after the c...Urbanization and living comfort have revolutionized the construction industry. Many techniques and strategies have been used to improve the overall efficiency of construction and to reduce waste during and after the construction activity;some are cost effective and some not. Sustainable construction strategies have addressed these issues by proposing relatively more cost effective and environment-saving solutions. One strategy is to select sustainable construction materials at the building design stage. This article involved a questionnaire survey to collect data about local technical stakeholders’ (architects, designers, engineers, estimators, and managers) awareness of environmental sustainability and current practices for selecting construction materials. A sustainability index (SI) was developed using SPSS (Statistical Package for the Social Sciences) for the complex statistical analysis. These data were used to develop a decision support system (DSS) using the multi-criteria decision making (MCDM) technique, the TOPSIS. The support system was validated by applying it to sustainable roof products in a pilot case study—these materials are frequently used in local markets for residential construction in West Australia. So the main objective was to get insight to local market trends and features involved in construction materials selection. Data analysis was carried out to develop a decision support system to help technical stakeholders in construction materials selection process.展开更多
The Ghanaian construction industry continues to improve by the recent intensification of infrastructure development by government and the private sector. Nonetheless, this is happening with a strong focus on economic ...The Ghanaian construction industry continues to improve by the recent intensification of infrastructure development by government and the private sector. Nonetheless, this is happening with a strong focus on economic development to the detriment of the environment these activities affect. This paper focuses on identifying the strategies by which sustainable environmental management could be structured to mitigate the impact of construction activities in Ghana. A mixed-method research approach was adopted. Quantitative data were collected from 83 practitioners in the construction industry, while qualitative data were elicited from 18 Construction and Environmental Management practitioners. The mean scores indicated that all the 20 strategies for integrating environmental concerns into construction activities in Ghana were considered significant by the respondents. The empirical findings of the study indicate that for environmental concerns to be effectively integrated into construction activities in Ghana, a concerted effort will be required from the various actors within the construction industry. These include the role of clients in selecting environmentally conscious service providers, designers focusing on environmentally friendly construction materials and methods, reduce, recycling and reuse of waste materials, the commitment of government towards sustainable development, and well-structured educational campaigns to promote environmentally sustainable construction activities.展开更多
The study evaluates the factors confronting the present-day construction practices in South-East Nigeria. Being a survey research, questionnaires containing information relating to factors/challenges affecting constru...The study evaluates the factors confronting the present-day construction practices in South-East Nigeria. Being a survey research, questionnaires containing information relating to factors/challenges affecting construction practices were randomly administered to selected construction practitioners in South-Eastern States of Nigeria. Accordingly, a total of 240 questionnaires were administered to the selected respondents while 160 copies were completed, returned and found useful. Thus, giving a response rate of 66.67%. Data collected were analysed and presented using percentages, mean scores, principal and factor analysis, z-test and tables. The study found that the core factors that constrain present-day construction in the study area are issues related to inadequate/dearth of technical and managerial expertise, corruption and poor project planning and control;which significantly affect operational effectiveness of the construction industry in the study area. Therefore, the study concluded by recommending that thorough capacity building through training or retraining programme which should centre on areas of the issues identified should be religiously pursued in the study area.展开更多
Buildings are stationary,complex edifices which come in a variety of sizes and shapes of comparatively low value goods.Their building materials are not readily reused or recycled as can not be easily separated and uti...Buildings are stationary,complex edifices which come in a variety of sizes and shapes of comparatively low value goods.Their building materials are not readily reused or recycled as can not be easily separated and utilized without further processing.This reprocessing takes place at almost every step of a material cycle and requires energy inputs,where together with energy come the carbon dioxide emissions that make up the vast majority of greenhouse gas emissions the main cause of global warming.If components and materials are recovered from a building for reuse,the additional inputs are eliminated and it is easier to adapt or change the building to meet evolving functions over its lifetime.Treating the buildings efficiently at the end of their service life can hold significant economic and environmental value.However,the value that can be extracted is very much dependent on how the buildings have been designed and built.This is the role of Design for Deconstruction(DfD),the intentional design of buildings in order to make them easily deconstructable and reuse their intact building materials and components in other building.Due to the perception of designers that buildings are static constructions the DfD is not widely used and only a limited number of buildings are fully deconstructable.This paper looks at the DfD process and identifies the four key categories involved in the process.These categories play an important role in the construction industry to become more sustainable,smarter and resourceful,by maximizing the reuse potential of DfD process.展开更多
With the deep and sustainable development of the market economy,the competitive environment and development pattern faced by China’s construction industry are becoming more and more severe.In this context,constructio...With the deep and sustainable development of the market economy,the competitive environment and development pattern faced by China’s construction industry are becoming more and more severe.In this context,construction projects should actively incorporate the development trends of the market economy and focus on analyzing relevant influencing factors and risk content.Considering previous experience,the audit effect of construction project budget and settlement has a major impact on the quality and economic benefit of construction projects to a certain extent.In view of this,this paper mainly focuses on the content and method of the construction cost budget and settlement audit as well as suggests measures for the construction cost budget and settlement audit,so as to improve the construction cost management level.展开更多
This paper compares the satisfaction of users of residential buildings produced by two construction processes considered as industrialized:“prefabricated masonry panels”and“reinforced concrete walls molded on site...This paper compares the satisfaction of users of residential buildings produced by two construction processes considered as industrialized:“prefabricated masonry panels”and“reinforced concrete walls molded on site”and compared with“conventional process”(structural masonry of concrete blocks).The premise of the study was to diagnose the level of acceptance of the buildings considered industrialized by the Brazilian population,aiming to assess whether the preference for the systems considered“conventional”and the rejection of the“industrialized”is decreasing in Brazil.This article concerns the results obtained in the second phase of the research,which was carried out after five years of the first phase.So,if the buildings were considered new in the first phase,this second research was carried out after the depreciation due to the action of time.To quantify the“degree of satisfaction”the same checklist of the first survey was applied,in the same neighborhood and the sum attributed to each answer made by residents was applied and,as a result,it was possible to ascertain the oscillations in it and to confirm the satisfactory acceptance of industrialized construction systems and a tendency to reduce rejection by the population in relation to the innovative construction systems.展开更多
文摘The construction industry, known for its low productivity, is increasingly utilising software and mobile apps to enhance efficiency. However, more comprehensive research is needed to understand the effectiveness of these technology applications. The PRISMA principles utilised a scoping review methodology to ascertain pertinent studies and extract significant findings. From 2013 onwards, articles containing data on mobile applications or software designed to enhance productivity in the construction sector were obtained from multiple databases, including Emerald Insight, Science Direct, IEEE Xplore, and Google Scholar. After evaluating 2604 articles, 30 were determined to be pertinent to the study and were subsequently analysed for the review. The review identified five key themes: effectiveness, benefits, successful implementation examples, obstacles and limitations, and a comprehensive list of software and mobile apps. In addition, 71 software and mobile apps have shown potentially how these technologies can improve communication, collaboration, project management, real-time collaboration, document management, and on-the-go project information and estimating processes in the construction industry, increasing efficiency and productivity. The findings highlight the potential of these technologies such as Automation, Radio-Frequency Identification (RFID), Building Information Modeling (BIM), Augmented Reality (AR), Virtual Reality (VR), and Internet of Things (IoT) to improve efficiency and communication in the construction industry. Despite challenges such as cost, lack of awareness, resistance to change, compatibility concerns, human resources, technological and security concerns and licensing issues, the study identifies specific mobile applications and software with the potential to enhance efficiency significantly, improve productivity and streamline workflows. The broader societal impacts of construction software and mobile app development include increased efficiency, job creation, and sustainability.
文摘In order to realize the accurate prediction of the total output value of construction industry in the future,the grey prediction model is used to compare the measured value with the predicted value from 2012 to 2021,and based on the existing data,the total output value of construction industry in Jiangxi Province in the next five years is predicted.The results show that the grey prediction model has a good prediction effect,and the error between the predicted value and the measured value is within 14%,which provides a basis for policy adjustment and resource optimization.
文摘Based on the data of the construction industry in Henan Province, China, from 2005 to 2020, the high-quality development level of the construction industry in Henan Province is measured. Firstly, this paper constructs the indicator system based on the high-quality development theory and the characteristic of the construction industry from seven dimensions: industrial scale, industrial efficiency, industrial benefits, industrial innovation, industrial risk, industrial potential, and the green development of the construction industry. Secondly, using the global principal component analysis (PCA) method to measure the high-quality development level. Thirdly, cluster analysis is applied to measure the relative changes of various dimensions in different stages. The results show that overall the high-quality development level of the construction industry in Henan province is increasing, but different indicators perform differently in various stages, and the changes in real estate policies have a significant impact on this. Finally, based on these findings, we think it is better to reduce real estate dependence, promote the application of new materials and technologies and maintain the stability of real estate policies.
文摘The concept of circular economy has gained recognition as a way to manage waste and conserve resources sustainably,and has the potential to transform the construction industry.This is particularly relevant in the construction industry due to the significant amounts of waste generated during the construction and demolition process.This study examines the perceived importance and effectiveness of strategies related to the circular economy in the construction industry.The data were collected through a survey administered to professionals in the construction sector,capturing their perceptions of various strategies.The results reveal that most strategies received high mean ratings,indicating their perceived significance.Strategies such as waste management and recycling facilities,design for disassembly,and prioritising the use of renewable and sustainable materials were highly valued by the respondents.Additionally,statistical analyses confirmed the significance of these strategies.However,some strategies received comparatively lower ratings,suggesting the need for further attention and improvement.The findings have important implications for policymakers,industry professionals,and stakeholders,guiding decision-making and resource allocation.By prioritising and implementing the identified strategies,stakeholders can drive the adoption of circular economy principles,enhance resource efficiency,and reduce waste in construction practices.Furthermore,this study lays the foundation for future research,highlighting the importance of exploring barriers to implementation,understanding synergies and trade-offs among strategies,conducting longitudinal studies to assess long-term impact,and broadening the participant pool for a more comprehensive understanding.Overall,this study contributes to the growing body of knowledge on the circular economy in the construction industry and provides valuable insights for promoting sustainability and circularity within the sector.
文摘Background: The Occupational Safety and Health Council(OSHC) is committed to improve the safety performance of the high risk construction industry.In the past three years,about 40% of the fatal accidents in the construction industry were related to Renovation,Maintenance,Alteration and Addition(RMAA).Due to the poor safety record,some of the RMAA contractors have difficulty in obtaining the Employees' Compensation Insurance(ECI) cover in the market,or if they could obtain the ECI,the premium rate would be exceedingly high.In view of this,the OSHC,the Labour Department jointly launched"OSH Star Enterprise-Pilot Scheme on Safety Accreditation for the RMAA Industry",which prompts the industry to take practicable safety measures to improve the safety of working environment and reduce occupational injuries.The program also helps the stakeholders and insurers to identify safety-conscious contractors and thereby provide them with a favourable premium rate under the Employees' Compensation Insurance Residual Scheme(ECIRS).Objectives: The OSHC launches the Pilot Scheme to improve the safety performance of the RMAA industry through providing safety training,subsidizing enterprise to purchase safety equipment and providing safety audit.We also use financial incentive to encourage RMAA enterprises to join the Pilot Scheme-for those who are accredited as "OSH Star Enterprise"could receive a premium discount from the ERIRS when obtaining the ECI.The scheme also differentiates those safety-conscious and law-abiding enterprises from the poor performers,which helps the industry and public identifying the RMAA contractors who pay attention to work safety.Methods: The Pilot Scheme targets RMAA enterprises that employ less than 50 employees in Hong Kong.A three-pronged approach is used to improve the safety performance of the RMAA industry: the Pilot Scheme provides(1) financial support for the RMAA contractors to buy a transportable temporary anchor device and full body safety harness and its anchor system;(2) safety training on RMAA work safety and safety & health supervisor course;and(3) safety audit.Results: Enterprises that successfully pass the safety audit and satisfied the Scheme requirements will be accredited as"OSH Star Enterprise",which will be valid for two years.These enterprises can also be upgraded to"OSH Gold Star Enterprise"based on their continuous improvement in safety performance.OSHC will set up a register of OSH-accredited enterprises in RMAA works for reference of the public to facilitate their choosing of accredited contractors.The Employees' Compensation Insurance Residual Scheme Bureau will provide privileged premium rate for enterprises with OSH accreditation."OSH Star Enterprise"could enjoy 40% discounts when joining their insurance scheme.For example,a skilled worker's annual premium can be reduced by about HK $ 36,000.While,the "OSH Gold Star Enterprise"could enjoy 50% discounts when joining their insurance scheme,which means a skilled worker's annual premium can be reduced up to HK $ 45,000.Achievements: This Pilot Scheme offers practical assistance as well as attractive financial incentives for the RMAA industry to improve their safety performance.The Employees'Compensation Insurance Residual Scheme provides premium discounts for enterprises that have a good safety record.It provides incentive for RMAA contractors to actively participate in the Pilot Scheme.The Scheme demonstrates that by providing a safe working environment and appropriate personal protective equipment to workers,the enterprise not only helps to reduce the accident rate of the industry but also receive an economic return.The Pilot Scheme bridges stakeholders of RMAA industry,the government and the insurance industry creating an "all-win"situation.This partnership approach to prevent injuries and accidents in the construction industry could be an effective model for other industries.
文摘In the field of the construction industry, logistics management has become an issue of concern which needs to be focused on in order to ensure effective, successful and timely execution of projects in the construction industry. Logistics management in construction is a multidisciplinary process which makes sure things are done at the right time, cost and quality as well as material supply and handling, schedule control, site infrastructure and equipment location, site physical flow management, traffic arrangements on and around the construction site, and information management related to all physical and services flow. This paper seeks to identify and evaluate the possible factors that affect logistics management in the construction industry and also to ascertain the current practices of inventory management and the effect on logistics management envisage by construction personnel’s and stake holders. A descriptive survey research was conducted with both structured and unstructured questionnaire and administered both via e-mail and by sending questionnaire link onto a WhatsApp platform groups of the respondents, and out of the 187 respondents that took part in the survey, 22 respondents feedback were incomplete so 165 member respondents results were analyzed representing 88.2% response rate. The survey results were analyzed, displayed and interpreted in the form of tables, bar charts, column chart and pie chart with the use of SPSS software. The research survey respondents </span><span style="font-family:Verdana;">were </span><span style="font-family:Verdana;">comprised of Project Managers, Project Coordinators, Foremen, Site Managers/</span><span style="font-family:Verdana;"> </span><span style="font-family:Verdana;">Officers, Logistics Managers, Inventory Managers and Laborers. The survey results revealed that majority of the total respondents are in the capacity or position as Logistics Managers and also have from 5 to 10 years working experience, and as well majority of the respondents have also attained Master’s degree qualification. It was also revealed that logistics management is greatly affected by the inability or the failure to embrace, adopt and integrate new and emerging technology and its approach into the logistics management system. Majority of the respondents also indicated that in general the adequacy of inventory management system was dissatisfied representing 63.8% of the total respondents. The construction industry not only needed to improve its inventory management systems but also to ensure appropriate inventory management techniques for enhancing high degree of accuracy, reduced cycle times and replenishment of stock. This usually accounts for the poor delivery and quality of work, accompanied with delays and other associated losses in project construction. For effective Logistics management to be achieved in the construction industry, the introduction of modern technology to carry out logistics functions in the construction industry should be paramount to the industry players.
文摘The application of digital technology in the field of construction is still in its infancy, and the existing concrete framework of digital technology application in the construction industry and the study of applied ecological elements are not enough. The ecological elements of digital technology application in the construction industry are important factors that promote the healthy op</span><span style="font-family:Verdana;">eration of the entire digital technology application ecosystem. </span><span style="font-family:Verdana;">Using grounded theory, we compiled the data of 33 researchers who participated in </span><span style="font-family:Verdana;">semi-structured interviews, and obtained 4 main categories and 9</span><span style="font-family:Verdana;"> sub-categories of ecological elements of digital technology application in the construction industry. Among them, the digital technology application mechanism is the core category of ecological application elements. We also used the Bass model to analyze the application trend of digital technology in the construction industry. </span><span style="font-family:Verdana;">In 2040, the number of construction companies applying digital</span><span style="font-family:Verdana;"> technology will reach 98.66% of the maximum market potential.
文摘This article analyzes the major stakeholders in the Brazilian construction industry from the viewpoint of the companies in this sector, as well as how these organizations relate to their stakeholders with regard to the topic of sustainability in the construction. The study was based on the principle that the relationship with stakeholders is one of the foundations for the inception and continuity of activities toward sustainability. The findings of which show that the construction companies start the sustainability implementation process without the involvement of external stakeholders. This survey points out the difficulty faced by Brazilian construction companies in relating to their stakeholders. There is the perception that the customers and other actors do not value sustainability-oriented activities, but, at the same time, the relationship of the companies with these stakeholders is limited to disclosure of information. This characteristic of the industry reveals a need for sustainability projects that take into consideration, since their formulation, the stakeholders’ perceptions. The importance of this article lies in the recognition that, although the topic of sustainability is discussed at all levels, studies that examine how specific construction industries have been dealing with it are still rare.
基金Supported by School-level Natural Science Project of Jiangxi University of Technology(232ZRYB02).
文摘The high-quality development of the construction industry fundamentally stems from the significant improvement of total factor productivity.Therefore,it is of crucial significance for promoting the development of the construction industry to a higher level by scientifically and accurately measuring the total factor productivity of the construction industry and deeply analyzing the influencing factors behind it.Based on a comprehensive consideration of research methods and influencing factors,this paper systematically reviews the existing relevant literature on total factor productivity in the construction industry,aiming to reveal the current research development trend in this field and point out potential problems.This effort aims to provide a solid theoretical foundation and valuable reference for further in-depth research,and jointly promote the continuous progress and development of total factor productivity research in the construction industry.
基金This study was carried out as part of the BIMcontracts research project funded by the German Federal Ministry for Economic Affairs and Energy(BMWi)within the“Smart Data Economy”technology program(Grant No.01MD19006B).
文摘The development of digital transformation in the construction industry has led to the increasing adoption of smart contracts.As programmable applications to automatically write,verify,and enforce transaction conditions,smart contracts can be used in different areas mainly to improve automation level,information security,and built digital environment enhancement.However,the smart contract is commonly mentioned as a blockchain appendage,while its unique connotation and value in the construction industry have not been recognized.Therefore,this study carries out a systematic review based on 81 research articles published from 2014 to 2021 on smart contract applications in construction to explore and highlight their potentials under domain-specific requirements.Results are analyzed according to research type categorization and domain codification.Eight research domains are identified,where the three most highly explored domains are contract and payment,supply chain and logistics,and information management.The integration of smart contracts with other innovative concepts and advanced technologies is analyzed.The applicability,benefits,and challenges of smart contract applications regarding different research domains are discussed.
基金Supported by General Projects of Talent Introduction Project in 2020 of Dalian University of Technology(DUT20RC(3)061)National Natural Science Foundation of China(71801024)National Key R&D Program of China(2018YFD1100203)。
文摘The construction industry is one of the largest energy consumers in China. It not only uses energy directly but also consumes a large amount of embodied energy hidden in intermediate goods and services from other industries. This paper utilizes the multi-regional input-output(MRIO)model to measure the embodied energy consumption in China's construction industry at the province level. To quantify the backward and forward linkages between the construction industry and other industries, the energy-driven and energy-driving abilities of the construction industry are investigated for 30 provinces. The results show that the values of the energy-driven coefficients are significantly larger than the energy-driving coefficients, indicating that the construction industry is highly dependent on products from other industries and other regions, not vice versa. The construction industries in the southwest and northwest regions of China have the highest energy-driven coefficients, showing that the construction industries in west China heavily rely on indirect energy embodied in goods and services. This particularly applies in Guangxi and Hainan provinces, which have the highest energydriven abilities and the lowest energy-driving abilities. The findings can facilitate the policy-makers to examine the critical energy-saving paths.
文摘Construction delay is a widespread issue in the construction industry of developing countries, and Nepal is no exception. These delays extend project durations and lead to cost overruns and disputes among stakeholders. To address this problem, this study aimed to identify and analyze the significant factors that contribute to construction project delays in Nepal. To gather data, a well-structured questionnaire was developed and administered to a sample of 100 participants, including contractors, consultants, and civil engineers. Various statistical tests were conducted to ensure the data’s integrity and consistency, such as reliability assessments and factor analyses. The findings of the study highlighted multiple factors contributing to delays in construction projects such as inadequate design, poor communication, and coordination among stakeholders, insufficient experience and planning by contractors, delays in material delivery and testing, labor-related problems including shortages and low qualifications, and external factors like regulatory changes and unforeseen circumstances. By identifying these major causes of construction project delays, this study presented insightful information that can contribute to the analysis and evaluation of project performance.
文摘In a very real sense,China did not have a legal system of energy until 1978 when the policy of reform and opening-up was carried out.Over the 30 years since then,China has achieved great accomplishments in energy development,which have attracted worldwide attention,
文摘Urbanization and living comfort have revolutionized the construction industry. Many techniques and strategies have been used to improve the overall efficiency of construction and to reduce waste during and after the construction activity;some are cost effective and some not. Sustainable construction strategies have addressed these issues by proposing relatively more cost effective and environment-saving solutions. One strategy is to select sustainable construction materials at the building design stage. This article involved a questionnaire survey to collect data about local technical stakeholders’ (architects, designers, engineers, estimators, and managers) awareness of environmental sustainability and current practices for selecting construction materials. A sustainability index (SI) was developed using SPSS (Statistical Package for the Social Sciences) for the complex statistical analysis. These data were used to develop a decision support system (DSS) using the multi-criteria decision making (MCDM) technique, the TOPSIS. The support system was validated by applying it to sustainable roof products in a pilot case study—these materials are frequently used in local markets for residential construction in West Australia. So the main objective was to get insight to local market trends and features involved in construction materials selection. Data analysis was carried out to develop a decision support system to help technical stakeholders in construction materials selection process.
文摘The Ghanaian construction industry continues to improve by the recent intensification of infrastructure development by government and the private sector. Nonetheless, this is happening with a strong focus on economic development to the detriment of the environment these activities affect. This paper focuses on identifying the strategies by which sustainable environmental management could be structured to mitigate the impact of construction activities in Ghana. A mixed-method research approach was adopted. Quantitative data were collected from 83 practitioners in the construction industry, while qualitative data were elicited from 18 Construction and Environmental Management practitioners. The mean scores indicated that all the 20 strategies for integrating environmental concerns into construction activities in Ghana were considered significant by the respondents. The empirical findings of the study indicate that for environmental concerns to be effectively integrated into construction activities in Ghana, a concerted effort will be required from the various actors within the construction industry. These include the role of clients in selecting environmentally conscious service providers, designers focusing on environmentally friendly construction materials and methods, reduce, recycling and reuse of waste materials, the commitment of government towards sustainable development, and well-structured educational campaigns to promote environmentally sustainable construction activities.
文摘The study evaluates the factors confronting the present-day construction practices in South-East Nigeria. Being a survey research, questionnaires containing information relating to factors/challenges affecting construction practices were randomly administered to selected construction practitioners in South-Eastern States of Nigeria. Accordingly, a total of 240 questionnaires were administered to the selected respondents while 160 copies were completed, returned and found useful. Thus, giving a response rate of 66.67%. Data collected were analysed and presented using percentages, mean scores, principal and factor analysis, z-test and tables. The study found that the core factors that constrain present-day construction in the study area are issues related to inadequate/dearth of technical and managerial expertise, corruption and poor project planning and control;which significantly affect operational effectiveness of the construction industry in the study area. Therefore, the study concluded by recommending that thorough capacity building through training or retraining programme which should centre on areas of the issues identified should be religiously pursued in the study area.
文摘Buildings are stationary,complex edifices which come in a variety of sizes and shapes of comparatively low value goods.Their building materials are not readily reused or recycled as can not be easily separated and utilized without further processing.This reprocessing takes place at almost every step of a material cycle and requires energy inputs,where together with energy come the carbon dioxide emissions that make up the vast majority of greenhouse gas emissions the main cause of global warming.If components and materials are recovered from a building for reuse,the additional inputs are eliminated and it is easier to adapt or change the building to meet evolving functions over its lifetime.Treating the buildings efficiently at the end of their service life can hold significant economic and environmental value.However,the value that can be extracted is very much dependent on how the buildings have been designed and built.This is the role of Design for Deconstruction(DfD),the intentional design of buildings in order to make them easily deconstructable and reuse their intact building materials and components in other building.Due to the perception of designers that buildings are static constructions the DfD is not widely used and only a limited number of buildings are fully deconstructable.This paper looks at the DfD process and identifies the four key categories involved in the process.These categories play an important role in the construction industry to become more sustainable,smarter and resourceful,by maximizing the reuse potential of DfD process.
文摘With the deep and sustainable development of the market economy,the competitive environment and development pattern faced by China’s construction industry are becoming more and more severe.In this context,construction projects should actively incorporate the development trends of the market economy and focus on analyzing relevant influencing factors and risk content.Considering previous experience,the audit effect of construction project budget and settlement has a major impact on the quality and economic benefit of construction projects to a certain extent.In view of this,this paper mainly focuses on the content and method of the construction cost budget and settlement audit as well as suggests measures for the construction cost budget and settlement audit,so as to improve the construction cost management level.
文摘This paper compares the satisfaction of users of residential buildings produced by two construction processes considered as industrialized:“prefabricated masonry panels”and“reinforced concrete walls molded on site”and compared with“conventional process”(structural masonry of concrete blocks).The premise of the study was to diagnose the level of acceptance of the buildings considered industrialized by the Brazilian population,aiming to assess whether the preference for the systems considered“conventional”and the rejection of the“industrialized”is decreasing in Brazil.This article concerns the results obtained in the second phase of the research,which was carried out after five years of the first phase.So,if the buildings were considered new in the first phase,this second research was carried out after the depreciation due to the action of time.To quantify the“degree of satisfaction”the same checklist of the first survey was applied,in the same neighborhood and the sum attributed to each answer made by residents was applied and,as a result,it was possible to ascertain the oscillations in it and to confirm the satisfactory acceptance of industrialized construction systems and a tendency to reduce rejection by the population in relation to the innovative construction systems.