The phenomenon of waste in the construction industry has received considerable attention from the project professionals since the emergence of lean construction. In the research community, however, ...identifying causes of waste together with waste detection and elimination in the context of construction have been addressed in a limited manner. Moreover, there are very few studies, if any, which have tried to revisit the concept of waste ontologically and to look into the causes of waste through the lens of their relation to other elements in construction projects such as delivery elements and lifecycle phases. Therefore, this study aims to fill this knowledge gap through developing a novel conceptualization of waste and exploring causes of waste in construction projects to reveal their connection to various project attributes. To do so, a systematic literature study was conducted through which relevant studies were located and analysed to achieve the purposes of this study. The findings propose a novel conceptualization of waste and value based on their overlooked components. Moreover, the results present a model which reveals the connection between the identified causes of waste and project attributes (life cycle phases, relevant party, project delivery element, and waste categories in general). The obtained results can be insightful for project practitioners and the research community to reach in-depth understanding of the waste concept.
The digitalization of construction organizations is deemed essential with the advent of the fourth industrial revolution. To achieve this, there is a need for construction organizations to partner ...with other organizations with complementary digital capabilities. This study, therefore, makes a case for digital partnering in the South African construction industry through a survey of construction professionals actively involved in a construction project in the country. Analysis of data gathered was done using a 5-step analysis approach and relevant descriptive and inferential statistics were adopted. Findings revealed that digital partnering is not being adopted among construction organizations in the country. However, if adopted correctly, construction organizations can have a better competitive advantage, improved project performance, and risk reduction through shared digital resources. Furthermore, the barriers to the proper adoption of digital partnering are the poor definition of partnering goal, getting the right digital partner, trust issue, partnering risk issue and investment cost. The study contributes to the body of knowledge as is reveals that construction organizations, particularly in a developing country like South Africa, stands a better chance of surviving the dynamic construction and digital environment by partnering with other organizations within and outside the industry rather than embarking on the digitalization journey alone.
The authors have attempted to summarize the evolution of research in Construction Productivity (CP) through a Systematic Literature Review (SLR) from the papers published from 2006 to 2017. The ...methodology adopted for the study is to use the systematic literature review for selecting the papers published in a few selected major journals of construction, built environment, and construction management fields. A total of eight journals selected for the SLR and 101 papers have been selected using the keyword “Construction Productivity in the title or the Keywords”. The findings of the study conclude that the studies in CP are focused in seven main areas are industry-level studies, the study of factors/attributes, measurement techniques, simulation and models, equipment and technology, issues and problems associated with CP, and improvement techniques and proposed frameworks.
The global construction industry plays a pivotal role, yet its unique characteristics pose distinctive challenges. Each construction project, marked by its individuality, substantial value, intricate ...scale, and constrained adaptability, confronts crucial limitations concerning time and cost. Despite contributing significantly to environmental concerns throughout construction activities and infrastructure operations, environmental considerations remain insufficiently addressed by project managers. This research introduces an improved rendition of the muti-objective grasshopper optimization algorithm (MOGOA), termed eMOGOA, as a novel methodology to tackle time, cost, and carbon dioxide emission trade-off problems (TCCP) in construction project management. To gauge its efficacy, a case study involving 29 activities is employed. eMOGOA amalgamates MOGOA, tournament selection (TS), and opposition-based learning (OBL) techniques to enhance the performance of the original MOGOA. The outcomes demonstrate that eMOGOA surpasses other optimization algorithms, such as MODA, MOSMA, MOALO and MOGOA when applied to TCCP. These findings underscore the efficiency and relevance of the eMOGOA algorithm within the realm of construction project management.
A competent project manager is vital to project success. While many studies have examined competency of project managers, few have done so in the context of green construction. Therefore, this study ...aims to identify challenges faced by project managers who execute green construction projects and to determine the critical knowledge areas and skills that are necessary to respond to such challenges. Through literature review, surveys and interviews with project managers, this study will help establish a knowledge base for project managers to be competitive and to effectively execute sustainable projects.
► Competency of project manager affects project success. ► Identify critical challenges faced by green construction project managers. ► Identify knowledge areas and skills required for green construction project managers. ► Provide a knowledge base for project managers to be competitive and sustainable.
Purpose
The purpose of this paper is to identify the barriers to implementing lean construction in the Kingdom of Saudi Arabia (KSA) construction industry and to prioritise the principal factors that ...constitute these barriers.
Design/methodology/approach
A literature review was initially used to reveal the global barriers to implementing lean construction. Subsequently, these barriers were incorporated into a structured questionnaire, and a convenience sample of 282 construction professionals in the KSA construction industry was surveyed. The results were analysed using mean item score (MIS), Mann–Whitney U test and principal component analysis (PCA).
Findings
The findings revealed 22 barriers to lean construction implementation in the KSA construction industry. Principal factors that constitute these barriers were found to be traditional practices, client related, technological, performance and knowledge and cost-related barriers in descending order of pervasiveness. The study also proposes solutions to overcome these principal barriers.
Originality/value
This study provides a global overview of the barriers to implementing lean construction. It contributes to the body of knowledge, as it uncovers for the first time the barriers to implementing lean construction in the KSA construction industry with reference to the socio-cultural, economic and operational context of the KSA. Thus, it is relevant to other countries in the Middle East because of their shared similarities to the KSA. Furthermore, the solutions proposed to overcome these barriers in the KSA construction industry can be applied in other countries where similar barriers are identified.
Automation of data processing processes Dudnik, A E; Germak, O V; Tupoleva, G K
IOP conference series. Materials Science and Engineering,
12/2019, Letnik:
698, Številka:
4
Journal Article
Recenzirano
Odprti dostop
The article describes the process of automated data processing. The examples of actual programs that are in demand for geodetic data applicable in the construction industry. In an experimental part ...of the paper provides a comparison of models reflectorless total station (BET), automating.
Large construction sites are not only an expression and driver of technical progress but also, as symbolic places, conveyors of political and cultural messages. In the wake of the crises affecting ...large current projects, such as Berlin Airport and the Hamburg Elbphilharmonie, public interest in them is currently enormous. However, this is by no means a new phenomenon. The book presented here provides - for the first time - far-reaching and comparative analyses of the history and importance of large construction sites. Using case studies from different cultural spheres and time periods, the authors discuss the multifaceted degrees of impact large buildings have during construction over the frequently long periods of their creation, and the changes in how they are perceived by society.
Risk management in construction projects Iqbal, Shahid; Choudhry, Rafiq M.; Holschemacher, Klaus ...
Technological and economic development of economy,
01/2015, Letnik:
21, Številka:
1
Journal Article
Recenzirano
Odprti dostop
Risk management is an important field of construction industry and has gained more importance internationally due to the latest researches carried out on a large scale. However, this relatively new ...field requires more attention to bring some benefit. Construction projects are facing a number of risks which have negative effects on project objects such as time, cost and quality. This study is based on findings of a questionnaire-based survey on risk management in construction projects in Pakistan, reporting the significance of different type of risk, ultimate responsibility for them and the effectiveness of some most common risk management techniques practiced in the industry. Two types of risk management techniques were considered: preventive techniques which can be used before the start of a project to manage risks that are anticipated during the project execution; and remedial techniques that are used during the execution phase once a risk has already occurred. The study revealed that financial issues for projects, accidents on site and defective design are the most significant risks affecting most of construction projects. As further reported, the contractor is responsible for management of most risks occurring at sites during the implementation phase, such as issues related to subcontractors, labour, machinery, availability of materials and quality, while the client is responsible for the risks such as financial issues, issues related to design documents, changes in codes and regulations, and scope of work. Further reported results of the analysis demonstrate that the production of proper schedule by getting updated data of the project and guidance from previous similar projects are the most effective preventive risk management techniques while close supervision and coordination within projects are the most effective remedial risk management techniques. It may be concluded that the most significant risks must be managed with greater effort to reduce/eliminate their effects on the project. As the study concludes, preparation of a proper schedule and good coordination during the implementation stage are very important as they may help project managers to focus on critical areas for better management of projects in Pakistan.
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