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Prior literature lacks concrete and systematic review of the current blockchain application in smart sustainable city that covered to the full extent of various components. Thus, this study explores the integration of blockchain technology in making the city smarter, safer and sustainable.

This study conducted a systematic literature review of 49 publications published globally. Data were analysed by coding of the publications whereby the codes were generated based on frequency of appearance (n).

The results showed that smart sustainable city could leverage blockchain technology in several areas such as governance, mobility, asset, utility, healthcare and logistics. Blockchain technology could also aid smart sustainable city in achieving social, environmental and economic sustainability.

This study proposes a smart sustainable city with blockchain technology framework: guiding city planners and policymakers by deploying blockchain that supports technology within smart sustainable city framework. This facilitates the digital transformation of a city towards smart and sustainable through the use of blockchain.

The digitization of electronic document management (EDM) in the construction industry has become more common in nature with the evolution of technology. However, there are still some limitations in EDM in the common data environment which can be improved with the integration of blockchain technology. The purpose of this paper is to identify the limitations of the current EDM system in the construction industry, to determine the potential of blockchain in improving the EDM system in the construction industry and challenges towards blockchain-based EDM.

Semi-structured interviews were conducted with nine (9) respondents with background from the construction industry and blockchain expertise. Content analysis was used to analyze the primary data.

Current EDM system in the construction industry possessed limitations such as system maturity, high cost, slow adoption of technology and security concerns. Blockchain is able to make improvements in the current EDM system in terms of data integrity, data tracking, data immutability, data security, data trustability, and data accountability. Several challenges such as costs, blockchain scalability and industry knowledge, industry culture and hardware need to overcome prior blockchain-based EDM systems can be widely applied in the construction industry.

The research findings provide insight on future EDM in the construction industry and aids future research in this field.

The synergy of lean construction and building information modelling (BIM) is an important change and transformation driver in the construction industry. It adds value and increases the productivity of construction processes. However, the implementation of lean-BIM in Malaysia is still lacking despite the accelerating BIM adoption rate. This study, therefore, aims to explore factors that potentially drive construction players to adopt lean-BIM for construction projects.

Exploratory interviews were conducted with five construction players knowledgeable in lean and BIM to identify the driving factors for them to implement lean-BIM. Respondents were obtained through the snowball sampling technique, initiated by approaching a government agency that oversees Malaysia's construction industry. Findings were then analysed using thematic analysis.

Findings have shown that four driving factors for construction players initiating the use of lean-BIM in construction projects are (1) top management support, (2) standardisation (3) comprehensive training and (4) financial support.

Due to the exploratory nature of this study and the chosen research design, the conclusions cannot be generalised but can become the indicators for lean-BIM future works in Malaysia or any other developing countries.

The insights from this study provide preliminary indicators for driving the adoption of lean-BIM. This discovery may also help construction companies and policymakers plan appropriate initiatives or strategies to present the need for lean-BIM further development in Malaysia.

The findings are expected to contribute to the lean-BIM research in terms of the demographic context, particularly in Malaysia and possibly assist lean and BIM researchers, practitioners and policymakers in developing countries' perspective.

The transition of Malaysia from a developing country to a developed country was considered in vision 2020, whereby an average construction contribution of 6.0% in growth domestic product (GDP) per annum was required. Despite this importance, still, the Malaysian construction industry has not reached the target yet. Understanding the weakness and strength of this industry can be an effective way to help the policymakers in selecting the best strategy in the promotion of the Malaysian construction industry in GDP growth. Hence, the purpose of this paper is to present an overview of the current issues and challenges faced by the contribution of the Malaysian construction industry in GDP growth.

To achieve this objective, all the latest statistical data presented by the Department of Statistic and Construction Industry Development Board in Malaysia until March 2018 being collected and interpreted. Furthermore, through the literature review, the most significant challenges encountered by the Malaysian construction industry identified, compared and presented.

The results highlight that the contribution of Malaysian construction into GDP is increasing with a gentle slope. Nonetheless, the Malaysian construction industry has a high impact on the employment rate. More investment in the construction sector is required to meet an average of 6% contribution in GDP. Also, to be able to seize new opportunities in the global construction market, more exerted efforts have to overcome the challenges faced by this industry.

This study offers practical implications to policy and decision makers in the Malaysian construction industry. Despite the constant growth of the Malaysian construction industry in recent years, there is a need for more investments and overcome to challenges to encounter an average of 6% contribution in GDP. This study provides an overview and insights to investors, stockholders and managers to formulate a long-term plan promoting the efficiency of the Malaysian construction industry.

This study through explaining, comparing and interpreting the real statistical data, through the tables, figures and graphs, simplified the understanding of the weakness and strength of the Malaysian construction industry.

The architecture, engineering and construction (AEC) industry encounter substantial risks and challenges in its evolution towards sustainable development. International businesses, multinational AEC organisations, technical professionals, project and portfolio management organisations face global connectivity challenges between business units, especially during the outbreak of novel coronavirus pandemic, to manage construction megaprojects (CMPs). That raises the need to manage global connectivity as a main strategic goal of global organisations. This paper aims to investigate barriers to integrating lean construction (LC) practices and integrated project delivery (IPD) on CMPs towards the global integrated delivery (GID) transformative initiatives and develop future of work (FOW) global initiatives in contemporary multinational AEC organisations.

A two-stage quantitative and qualitative research approach is adopted. The qualitative research methodology consists of a literature review to appraise barriers to integrating LeanIPD&GID on CMPs. Barriers are arranged into six-factor clusters (FCs), with a conceptualisation of LeanIPD&GID, GID strategy placements and FOW global initiatives with multiple validations. This analysis also involved semi-structured interviews and focus group techniques. Stage two consisted of an empirical questionnaire survey that shaped the foundation of analysis and findings of 230 respondents from 23 countries with extensive cosmopolitan experience in the construction of megaprojects. The survey examined a set of 28 barriers to integrating LeanIPD&GID on CMPs resulting from a detailed analysis of extant literature after validation. Descriptive and inferential statistical tests were exploited for data analysis, percentage scoring analysis, principal component analysis (PCA) and eigenvalues were used to elaborate on clustered factors.

The research conceptualised LeanIPD&GID principles and proposed GID strategy placements for LeanIPD&GID transformative initiatives and FOW global initiatives. It concluded that the most significant barriers to integration of LeanIPD&GID on CMPs are “lack of mandatory building information modelling (BIM) and LC industry standards and regulations by governments”, “lack of involvement and support of governments”, “high costs of BIM software licenses”, “resistance of industry to change from traditional working practices” and “high initial investment in staff training costs of BIM”. PCA revealed the most significant FCs are “education and knowledge-related barriers”, “project objectives-related barriers” and “attitude-related barriers”. Awareness of BIM in the Middle East and North Africa (MENA) region is higher than LC and LC awareness is higher than IPD knowledge. Whilst BIM adoption in the MENA region is higher than LC; the second is still taking its first steps, whilst IPD has little implementation. LeanBIM is slightly integrated, whilst LeanIPD integration is almost not present.

The research findings, conclusion and recommendation and proposed GID strategy placements for LeanIPD&GID transformative initiatives to integrating LeanIPD&GID on CMPs. This will allow project key stakeholders to place emphasis on tackling LeanIPD&GID barriers identified in this research and commence GID strategies. The study has provided effective practical strategies for enhancing the integration of LeanIPD&GID transformative initiatives on CMPs.

The construction industry encounters substantial challenges in its evolution towards sustainable development and in the adoption of building information modelling (BIM) technology and lean construction (LC) practices on construction mega-projects. This research aims to investigate the critical barriers encountered by key construction stakeholders in their efforts to integrate BIM and LC in the construction mega-projects.

A two-round Delphi survey shaped the foundation of aggregating consensus between an expert panel that examined a set of 28 barriers resulting from a detailed analysis of the extant literature. Descriptive and inferential statistical tests were exploited for data analysis, and interrater agreement analysis was used to elaborated and validate results.

The research concluded that the key barriers by descending order of significance are lack of mandatory BIM and LC industry standards and regulations by the government, resistance of the industry to change from traditional practices to LeanBIM, high cost of software licenses and training and running of BIM.

The research findings and the proposed mitigation strategy will enhance the application of BIM and LC practices in construction mega-projects and allow project key stakeholders to place emphasis on tackling the crucial challenges and barriers identified in this research.