Showing papers in "Engineering, Construction and Architectural Management in 2018"

Factors affecting construction productivity: a 30 year systematic review

Abstract: A significant amount of work has been performed in the area of identification of factors affecting construction productivity. Previous studies have tried to determine the most important factors affecting construction productivity in different countries for a long time. As a result of continuous effort in this direction, researchers have identified a wide range of factors. While the subject area has matured, no general agreement could be made on the factors affecting construction productivity. To fill this gap, the purpose of this paper is to undertake a comprehensive systematic review of mainstream studies on factors affecting construction productivity published in the last 30 years (1986–2016).,A total of 46 articles from different sources such as journals, conference proceedings, dissertation and PhD theses were identified and thoroughly reviewed.,Gaps in research and practices are discussed and directions for future research have been proposed. The literature review indicates that despite noticeable differences in the socio-economic conditions across both developed countries and developing countries, an overall reasonable consensus exists on few significant factors impeding productivity. These are, namely, non-availability of materials, inadequate supervision, skill shortage, lack of proper tools and equipment and incomplete drawing and specifications. Nevertheless, implications of technology, site amenities, process studies, project culture, and impacts of physiological and psychological factors were not adequately covered in existing literature. The study also found that traditional construction projects have remained the main focus of these studies while green construction projects have been generally overlooked.,The review does not include studies that report productivity at the organisational or industry level as well as total factor productivity. The scope of the review is limited to work on identification of factors affecting productivity at the activity level in construction projects.,The outcomes of this study would help researchers and practitioners by providing the findings of previous studies in a concise manner. It is also expected that presenting a deeper and wider perspective of the research work performed until now will direct a more focussed approach on productivity improvement efforts in the construction industry.,This review paper undertakes a comprehensive systematic review of studies on identification of factors affecting construction productivity published during the last three decades.

Soft skills of construction project management professionals and project success factors: A structural equation model

Abstract: The purpose of this paper is twofold: first, to identify the soft skills of construction project management; and second, to investigate the influence of these soft skills on project success factors in the Vietnamese construction industry.,A questionnaire survey was conducted with 108 project management professionals from the Vietnamese construction industry. Partial least square structural equation modelling was employed in data analysis.,Four-dimensional structure of project success factors was confirmed in this study. Results also showed that soft skills of project managers significantly contributed to project success factors and hence the project success.,There may be geographical limitation on the conclusions drawn from the findings. Similarly, the sample size was still small, despite a relatively high response rate. In addition, the majority of the respondents were contractors and clients as other project players were reluctant to respond to the survey.,This study provides an understanding of the relationship between soft skills and project success factors.,Although there have been studies focused on soft skills of project management and project success factors, few have attempted to analyse the effects of these soft skills on critical success factors. Thus, this study adds significantly to the existing research on both project management skills and project success factors.

Bridging the digital divide gap in BIM technology adoption

Abstract: Purpose: In the architecture, engineering and construction (AEC) industry, a “digital divide” exists in technology adoption because SMEs (who often form the bulk of AEC organisations in most countries) are thought to be “Late Majority” and “Laggards” in the adoption of Building information modelling (BIM) technology. Larger organisations not saddled with financial and socio-technical constraints might be considered as being among the “Early Majority” or “Innovators”. It is crucial to understand how these organisations differ in their speed of BIM technology adoption and the rationale for this difference. The purpose of this paper is to investigate the potential causes of the digital divide and suggest solutions for bridging the gap. Design/methodology/approach: Using mixed research method, data were collected through online questionnaire survey of over 240 global respondents as well as a semi-structured interview with nine experts for which statistical and thematic analyses were used, respectively. Findings: Organisations can be zoned into “layers” and “levels” of BIM technology adoption and their size is not always significant in terms of the speed at which they adopt BIM. The digital divide is unequal across layers/levels and large organisations utilise technologies across the BIM maturity levels depending on project circumstances. A conceptual model for BIM technology was developed to aid identification of the “Laggards” and “Late Majority” from the “Innovators” through which change agents can customise adoption strategies for each group. Originality/value: The developed model could serve as a tool for engagement and policy making and it contributes to the body of knowledge in the field of BIM technology adoption.

Developing a safety climate factor model in construction research and practice: A systematic review identifying future directions for research

Abstract: Safety climate and its impact on safety performance is well established; however, researchers in this field suggest that the absence of a common assessment framework is a reflection of the state of development of this concept. The purpose of this paper is to propose a five-factor model that can be used to diagnose and measure safety climate in construction safety research and practice.,A systematic review was adopted, and following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, 574 articles were selected at the start of the study based on a developed review protocol for investigating safety climate factors. While examining the factor analysis of different studies, data reliability and data validity of the individual research findings were considered and frequency of factors uploaded was used to determine the significance as a quantitative measure to develop the ranking of safety climate factors.,The review identified that, from the established measures of safety climate in construction, there is little uniformity on factor importance. However, management commitment safety system role of the supervisor; workers’ involvement and group safety climate were found to be the most common across the studies reviewed. It is proposed these factors are used to inform a five-factor model for investigating safety climate in the construction industry.,The findings of this study will motivate researchers and practitioners in safety to use the five-factor safety climate model presented in this paper and test it to develop a common factor structure for the construction industry. The fact that the model is comprised of five factors makes it easier to be used and implemented by small-to medium-sized construction companies, therefore enhancing its potential use.

Barriers to the adoption of value management in developing countries

Abstract: The purpose of this paper is to determine the barriers to the adoption of value management (VM) in the construction industry of developing countries with a view to providing possible measures in avoiding these barriers and increasing the usage of the system within the construction industry.,The level of knowledge and adoption of VM practices, as well as the barriers to its adoption in the construction industry were assessed through a survey design. Construction professionals were sampled from the six geo-political zones in Nigeria through the use of a structured questionnaire. Factor analysis was conducted on data gathered on the barriers of VM.,The study revealed a moderate level of knowledge of VM among construction professionals. This implies that the problem of VM is not that of awareness, but readiness to adopt the system. The study also reveals that the barriers to the adoption of VM can be categorised under the general stakeholder’s barriers, training and education barriers, client barriers and government/top management barriers.,This study was conducted across the six geo-political zones of the country as against common practice of selecting a particular region or states to represent the entire country. The findings therefore show a true reflection of the barriers to VM adoption in the country and its recommendations can to a large extent promote the adoption of VM in the country and also other developing countries where construction projects are executed through similar method, style and approach.,This paper highlights the possible barriers to the adoption of VM in Nigeria construction industry and provides ways to avoiding these barriers in order to achieve better quality construction and value for money.

Risk paths in BIM adoption: empirical study of China

Abstract: The purpose of this paper is to model the paths of risks associated with building information modeling (BIM) adoption in the Chinese architecture, engineering and construction industry.,A total of 16 risks were identified from the literature review and grouped into nine categories. The data were collected through a questionnaire survey with 95 professionals in China. The partial least square structural equation modeling was used to analyze the data.,The results suggested the risk categorization was confirmed, and that 15 hypothetical risk paths were statistically significant, which formed 13 chains of risk paths. “Inadequate relevant knowledge and expertise” was the primary root risk category of all the 13 chains of risk paths. Additionally, “technological issues,” “poor information sharing and collaboration,” and “liability for data input” had direct effect on the “cost overrun with BIM,” while all the other risks indirectly influence cost via these three risk categories.,Most of the respondents were designers because few clients and contractors have adopted BIM. In addition, the impact and likelihood of risks were accessed by respondents’ judgment based on their experience, which is a common problem of risk management research. As this study focuses on the Chinese architecture, engineering and construction industry, there would be geographical limitation on the findings.,This study provides practitioners with a clear understanding of the risks associated with BIM adoption and enables practitioners to take measures to mitigate the root risks and assure the potential benefits of BIM.,Although there have been studies on the risks associated with BIM adoption, most of them lacked empirical evidence and failed to examine the interactions between risks. This study is different from these prior studies, because it focuses on the interrelationships between risks and identifies the risk paths and root risks using the empirical data. Therefore, this study expands the literature relating to both BIM and risk management. Also, this study enables practitioners to take measures to mitigate the root risks and assure the potential benefits produced by BIM, thereby contributing to the practice.

Causes of delays in construction industry and comparative delay analysis techniques with SCL protocol

Abstract: Purpose The purpose of this paper is to reveal the main causes of delays in the projects are from the client (relative importance index (RII)=0.716), labor and equipment (RII=0.701) and contractor (RII=0.698). Hence determining the contractual responsibility of delay is the most likely source of dispute in construction projects and many techniques have been used in the courts to demonstrate the criticalities of a delay event on the project schedule. Therefore, authors try to investigate all process-based techniques of delay claims and evaluated and conformed them with principles by Society of Construction Law (SCL) protocol and Association for the Advancement of Cost Engineering International (AACEI) in order to choose the best techniques based on the specific circumstances of each project. Design/methodology/approach This section is divided into two distinct parts: refers to the methods used to assess the perceptions of clients, consultants, and contractors on the relative importance of causes of delay in construction industry; and refers to advantages and disadvantages of various techniques used to analyze delays and their conform with SCL protocol. A questionnaire was developed to assess the perceptions of clients, consultants, and contractors on the relative importance of causes of delay in Iranian construction industry. The respondents were asked to indicate their response category on 78 well-recognized construction delay factors identified by authors. Findings In total, 78 causes of delay were identified through research. The identified causes are combined into seven groups. The field survey included 58 contractors, 55 consultants, and 62 client. Data collected were analyzed by RII and Statistical Package for Social Sciences (SPSS). The authors identified main causes of delay and ten most important causes, according to Table AII, from the perspective of three major groups of participants (clients, consultants and contractors). The ranking of categories of causes of delay, according to Table I, were: client-related causes (RII=0.716); labor and equipment category causes (RII=0.701); contractor-related causes (RII=0.698); material-related causes (RII=0.690); design-related causes (RII=0.666); external causes (RII=0.662); and consultant-related causes (RII=0.662). But according to the discussions and given that determining the contractual responsibility of delay is the most likely source of dispute in construction industry and many techniques have been used in the courts to demonstrate the criticalities of a delay event on the project schedule. Originality/value All process-based techniques of delay analysis have been present in this paper and categorized in 11 groups. In order to understand the advantages and disadvantages of them by clients, contractor and consultant, a thorough review conducted to reveal the nature of techniques. In the next step, given that selecting the most appropriate technique based on constraints and specific conditions of each project is one of the most important steps to carry out a successful delay analysis. The authors conformed, all process-based techniques of delay analysis, by SCL protocol and AACEI principles. Finally, the result of this match was brought in order to choose the best technique based on the specific circumstances of each project.

Mobile BIM implementation and lean interaction on construction site: A case study of a complex airport project

Abstract: Building information modeling (BIM) and lean construction are two practices that are developed in order to increase productivity, efficiency and quality in construction by implementing various procedures. However, the practical execution of both BIM and lean is mostly limited with the tasks performed in the office environments in the design phase. The purpose of this paper is to examine the benefit realizations in terms of lean interactions resulting from mobile BIM processes through a framework by focusing on digital transformations performed on the construction site.,This paper examines the benefit realizations in terms of lean interactions resulting from mobile BIM processes through a framework by focusing on digital transformations performed on the construction site. To describe the case, BIM project management processes during construction phase have been explained by a participatory research. With a comprehensive literature review, interactions between site BIM processes and lean principles have been defined and the case has been evaluated accordingly.,By focusing on the mobile BIM delivery of project information via tablets to construction site, it has been identified that through the use of technology enabled by BIM practices, lean construction principles are also simultaneously accomplished. This achievement is not only realized with technology but also with the strategic implementation and transformation of organization with the proper BIM practices.,The research is focused on mobile BIM processes applied on-site to enhance traditional project management processes. With the findings of this paper, practitioners may identify research questions to resolve real-life implementation challenges.,This research will enlighten construction practitioners regarding site BIM application capabilities and lean achievements with the utilization of improved project management processes enabled by BIM.,Through the implementation of project management processes enabled by BIM practices on construction site, lean principles are achieved and bottlenecks are identified.

Project-based Pedagogy in Interdisciplinary Building Design Adopting BIM

Abstract: The purpose of this paper is to present a pedagogical practice in the project-based assessment of architectural, engineering and construction (AEC) students’ interdisciplinary building design work adopting BIM. This pedagogical practice emphasizes the impacts of BIM, as the digital collaboration platform, on the cross-disciplinary teamwork design through information sharing. This study also focuses on collecting students’ perceptions of building information modeling (BIM) effects in integrated project design. Challenges in BIM adoption from AEC students’ perspective were identified and discussed, and could spark further research needs.,Based on a thorough review of previous pedagogical practices of applying BIM in multiple AEC disciplines, this study adopted a case study of the Solar Decathlon (SD) residential building design as the group project for AEC students to deliver the design work and construction planning. In total 13 different teams within the University of Nottingham Ningbo China, each group consisting of final year undergraduate students with backgrounds in architecture, civil engineering, and architectural environmental engineering, worked to deliver the detailed design of the solar-powered residential house meeting pre-specified project objectives in terms of architectural esthetics, structural integrity, energy efficiency, prefabrication construction techniques and other issues such as budget and scheduling. Each team presented the cross-disciplinary design plan with cost estimate and construction scheduling together within group reports. This pedagogical study collected students’ reflective thinking on how BIM affected their design work, and compared their feedback on BIM to that from AEC industry professionals in previous studies.,The case study of the SD building project showed the capacity of BIM in enabling interdisciplinary collaboration through information exchange and in enhancing communication across different AEC fields. More sustainable design options were considered in the early architectural design stages through the cross-disciplinary cooperation between architecture and building services engineering. BIM motivated AEC student teams to have a more comprehensive design and construction plan by considering multiple criteria including energy efficiency, budget, and construction activities. Students’ reflections indicated both positive effects of BIM (e.g. facilitating information sharing) as well as challenges for further BIM implementation, for example, such as some architecture students’ resistance to BIM, and the lack of existing family types in the BIM library, etc.,Some limitations of the current BIM pedagogy were identified through the student group work. For example, students revealed the problem of interoperability between BIM (i.e. Autodesk Revit) and building energy simulation tools. To further integrate the university education and AEC industry practice, future BIM pedagogical work could recruit professionals and project stakeholders in the adopted case studies, for the purpose of providing professional advice on improving the constructability of the BIM-based design from student work.,To further integrate the university education and AEC industry practice, future BIM pedagogical work could recruit professionals and project stakeholders in the adopted case study, for the purpose of providing professional advice in improving the constructability of the BIM-based design from student work.,This work provides insights into the information technology applied in the AEC interdisciplinary pedagogy. Students gained the experience of a project-based collaboration and were equipped with BIM capabilities for future employment within the AEC job market. The integrated design approach was embedded throughout the team project process. Overall, this BIM pedagogical practice emphasized the link between academic activities and real-world industrial practice. The pedagogical experience gained in this BIM course could be expanded to future BIM education and research in other themes such as interoperability of building information exchange among different digital tools.

Improving transparency in construction management: a visual planning and control model

Abstract: Purpose The purpose of this paper is to discuss a production planning and control model known as the Lean construction management (LCM) model, which applies a number of visual tools in a systematic way to the planning and control process The application of the visual tools in this way facilitates the flow of information, thus improving transparency between the interfaces of planning, execution and control Design/methodology/approach Design Science research is adopted for this investigation, which analyses the original development of the model and reports on its testing and refinement over different types of projects The research is divided into three parts, each part focussing on a different stage of development and construction project type Findings The main findings are related to the benefits of visual management in the construction planning and control process, such as maintaining consistency between different planning levels, so that feasible execution plans are created; control becomes more focussed on prevention rather than correction, and creates opportunities for collaborative problem solving Moreover, the physical display of the visual tools in a discrete planning area on-site encourages a regular exchange between participants on actual work progress as it unfolds, leading to more timely reaction to the problems at hand Originality/value The problem of a lack of transparency in construction planning and control leads to communication issues on-site, poor process orientation and high levels of waste LCM improves process transparency by making information related to system-wide processes more readily available to project participants This enables them to foresee problems in a timely manner and to take necessary measures to resolve them or to adapt the process to current circumstances The LCM model proposes a new way of applying visual tools and controls systematically to improve transparency in construction planning and control

Phase-based analysis of key cost and schedule performance causes and preventive strategies: Research trends and implications

Abstract: It is estimated that more than half of the construction industry’s projects encounter significant cost overruns and major delays, resulting in the industry having a tarnished reputation. Therefore, it is crucial to identify key project cost and schedule performance factors. However, despite the attempts of numerous researchers, their results have been inconsistent. Most of the literature has focused solely on the construction phase budget and time overruns; the engineering/design and procurement phase costs and schedule performances have been rarely studied. The paper aims to discuss these issues.,The objective of this study was primarily to identify and prioritize engineering, procurement and construction key performance factors (KPFs) and to strategize ways to prevent performance delays and cost overruns. To achieve these objectives, more than 200 peer-reviewed journal papers, conference proceedings and other scholarly publications were studied and categorized based on industry type, physical location, data collection and analysis methods.,It was concluded that both the time required to complete engineering/construction phases and the cost of completing them can be significantly affected by design changes. The two main causes of delays and cost overruns in the procurement phase are construction material shortages and price fluctuations. Other factors affecting all phases of the project are poor economic condition, equipment and labor shortages, delays in owners’ timely decision making, poor communication between stakeholders, poor site management and supervision, clients’ financial issues and severe weather conditions. A list of phase-based strategies which address the issue of time/cost overruns is presented herein.,The findings of this study address the potential confusion of the industry’s practitioners related to the inconsistent list of potential KPFs and their preventive measurements, and pave the way for the construction research community to conduct future performance-related studies.

Exploring the BIM and lean synergies in the Istanbul Grand Airport construction project

Abstract: The purpose of this paper is to develop a solid understanding of how integrated building information modeling (BIM) is implemented in a mega project such as the (Istanbul Grand Airport IGA) construction project, which is the main case study in the research methodology.,The paper examines and identifies the lean efficiency gains achieved in the IGA project and highlights the synergies between BIM and lean concepts based on the facts and figures from the case study analysis. In complex projects, there is a vital need for a comprehensive approach that would enable successful managing of design and construction information via accurate modeling, collaboration and integration throughout the project lifecycles covering various disciplines.,The research findings in the paper make a significant impact in understanding the strategic perception for BIM as a new way of working methodology for the construction industry in Turkey, since the IGA project has become not only a key learning hub for the Turkish construction industry, but also a global landmark for digital construction and project delivery. In addition it proves the mutual synergies between BIM and lean practices.,The IGA project is a mega-scale airport construction project with features beyond building industry challenges, and it should be designed and constructed with tight deadlines and budgets and be operated afterwards in an effective and efficient way. Can lean and BIM help for timely and on-budget completion of the project and could they support the management of the airport facility after handover? The paper also discusses the lean and BIM implementation in the project in relation to the BIM Level 3 requirements.

Causes of delays in the construction phase of Chinese building projects

Abstract: Delays during construction are one of the common scenarios in the construction industry. The purpose of this paper is to identify the primary causes of delays in the construction phase of building construction projects in China.,Questionnaire survey approach was adopted across the four typical cities in China, namely, Beijing, Shanghai, Chongqing and Shenzhen. In total, 115 sets of valid responded questionnaires were collected and analyzed.,The results show that the causes of variations, delays in progress payments, exceptionally low bids and subcontractors’ poor performance and communication issues were the most important causes of delays in China.,This research is the first questionnaire survey on the causes of delays in the construction phase of building construction projects in China. The comparative analysis shows two unique causes of delays in the Chinese construction industry, such as “difficulty in claiming indemnity” and “unreasonable upfront capital demanded by client.” It also reveals different ranked causes of delays as per distinguished political and economic situations in China. The research findings can be referred by construction projects in other countries that are funded or partnered with China.

Factors affecting the accuracy of cost estimate: case of Jordan

Abstract: Purpose Cost estimating process is an important element within the project life cycle. Comprehensive information, expanded knowledge, considerable expertise, and continuous improvement are needed to obtain accurate cost estimation. The main objectives of this study are to identify the critical factors that affect accuracy of cost estimation and evaluate the degree to which these factors are important from contractors’ and consultants’ viewpoints. Design/methodology/approach Qualitative, and quantitative research approaches were adopted in collecting and analyzing the data, and testing the hypotheses. Based on literature review, a questionnaire was prepared and then was modified according to the results of face-to-face open-ended interviews conducted with 11 project managers. The final version of the questionnaire was distributed to a random sample of 265 respondents. For analyzing the collected data Kendall’s and Mann Whitney tests were conducted Findings The analysis revealed that there is a strong agree...

Identifying micro variables contributing to political risks in international construction projects

Abstract: The purpose of this paper is to explore the micro-level variables contributing to political risks in international construction projects.,A total of 25 micro-level variables were identified from the literature review, and a questionnaire survey was performed with 138 professionals from both academia and industry. Then, the Spearman rank correlation was used to test whether there was agreement on ranking between the two respondent groups. Furthermore, the 25 variables were grouped into six underlying factors through the exploratory factor analysis.,The results indicated that the most critical variables were “project desirability to the host country,” “relationship with governments,” “misconduct of contractors,” “public opposition to the project,” “experiential knowledge of political risks” and “advantageous conditions of contract.” In addition, the opinions within each group were consistent and there was no significant disagreement on the rankings of variables between academics and practitioners. However, the academic and practitioner groups held different opinions on some individual variables. The impact direction of the variables was associated with confusion among the respondents.,The findings presented in this paper can help international construction enterprises effectively manage political risks in international construction projects.

Human resource management practices to improve project managers’ job satisfaction

Abstract: More attention should be paid to project managers’ (PMs) job satisfaction as they play an important role in ensuring projects are completed successfully. The purpose of this paper is to identify human resource management (HRM) policies and practices that lead to higher PMs’ job satisfaction.,A questionnaire survey was conducted on PMs who are working in construction firms and project management consultancy firms. Data were collected via random, convenience and snowball sampling. The data collected were analysed using partial least square-structural equation modelling, independent samples t-test and Pearson’s correlation.,The findings show that PMs who are satisfied with their firms’ HRM practices and job rewards also have higher job satisfaction. Several HRM strategies that give rise to higher job satisfaction are identified, e.g. a system to recognise and develop talent, and taking active steps to identify and develop backups in case of emergency. Unfortunately, some practices are not implemented to a significant extent, and these include: systematically recruiting and retaining talented PMs, encouraging PMs to plan for their careers, offering performance and development coaching, and appraising employees.,The limitations include the low response rate and the relatively small sample size of 81. The profile of respondents is largely from construction companies with more than 150 staff, and, therefore, the findings are more applicable to medium- to large-sized construction firms.,The study identified many HRM practices and policies that are significantly associated with PMs’ job satisfaction, yet many of these are not implemented to a significant extent by the employers. The practical implication is that employers of PMs should systematically implement these in order that their PMs have higher job satisfaction which is important for a project’s success.,The originality of this research is that the HRM practices and policies that are associated with job satisfaction of PMs are uncovered. Its value is in showing that PMs derive greater job satisfaction when HRM policies encompass talent development, career coaching and a personalised management style. Among these important practices, those that have been neglected were also identified. The study offers recommendations on the HRM practices that firms should be put in place for their PMs to experience higher job satisfaction.

Challenges and drivers for data mining in the AEC sector

Abstract: Purpose: This paper explores the current challenges and drivers for data mining in the AEC sector. Design/methodology/approach: Following a comprehensive literature review, the data mining concept was investigated through a workshop with industry experts and academics. Findings: The results showed that the key drivers for using data mining within the AEC sector is associated with the sustainability, process improvement, market intelligence, cost certainty and cost reduction, performance certainty and decision support systems agendas in the sector. As for the processes with the greatest potential for data mining application, design, construction, procurement, forensic analysis, sustainability and energy consumption and reuse of digital components were perceived as the main process areas. While the key challenges were perceived as being, data issues due to the fragmented nature of the construction process, the need for a cultural change, IT systems used in silos, skills requirements and having clearly defined business goals. Originality/value: With the increasing abundance of data, business intelligence and analytics and its related concepts, data mining and big data have captured the attention of practitioners and academics for the last 20 years. On the other hand, and despite the growing amount of data in its business context, the AEC sector still lags behind in utilising those concepts in its end products and daily operations with limited research conducted to explore those issues at the sector level. This paper investigates the main opportunities and barriers for Data Mining in the AEC sector with a practical focus. Keywords: Business analytics, Data Mining, Data Analytics, AEC, Facilities Management

Stakeholder complexity in large scale green building projects: A holistic analysis towards a better understanding

Abstract: In response to the world’s rising awareness on sustainability, industry players and policymakers are devoting great efforts to bolster green building developments. Every green building project (GBP) involves numerous stakeholders and potentially incompatible concerns. Despite the associated environmental, economic and social benefits, GBP developments have often confronted managerial barriers which are actually emerged from stakeholders – the actual key determinants of a project. Holistically analyzing the complexity of stakeholders in GBPs is, therefore, crucial to improving GBP management and achieving greater sustainability for all involved. The purpose of this paper is to analyze stakeholder complexity in large GBPs using a holistic framework which integrates both empirical and rationalistic analytical perspectives.,The complexity of stakeholders in GBPs can be considered from three aspects – identifying stakeholders, assessing stakeholder interactions and analyzing stakeholder concerns. The proposed stakeholder analysis framework uses both empirical methods (e.g. interviews and surveys) and rationalistic methods (e.g. chain referral sampling and social network analysis) to analyze GBP stakeholder complexity. Case study of a lab-enabled commercial GBP in Hong Kong was undertaken to illustrate the framework.,The framework enables a holistic, objective and effective stakeholder analysis; leading GBP leaders toward a complete understanding of project stakeholder complexity. The case study findings bring managerial insights to GBP leaders on the general SNA-related stakeholder dynamics and the important stakeholder concerns, of large Hong Kong GBPs. The findings diagnose general connectivity structures of GBP stakeholders, identify influential and peripheral actors in GBP information exchange, and suggest clues to improve their dynamics. In addition, ten key stakeholder concerns were identified, including comprehensive governmental standards and procedures, clear sustainability goals at the outset, effective stakeholder engagement, adequate design flexibility, and a “can-do” attitude of contractors and consultants – which are all vital for successful GBP development. The underlying reasons of these concerns and recommendations to addressing them were also discussed.,Many existing GBP stakeholder studies appear to use a single analytical perspective to assess project stakeholder complexity, but this may not gain a full understanding. The holistic stakeholder analysis framework used herein combines empiricism and rationalism. It helps to bring GBP leaders and implementers toward a more informed project decision making, a more thorough understanding of stakeholder complexity, as well as a more effective engagement of stakeholders.

An investigation of modern building equipment technology adoption in the Australian construction industry

Abstract: Research into the construction industry’s adoption of modern equipment technologies, such as remote-controlled trucks, excavators and drones, has been neglected in comparison to the significant body of research into the adoption of information technology in construction. Construction research has also neglected to adequately consider the important role of vendors in the innovation diffusion process, focussing mostly on the role of the customer. Set within the context of Australia’s construction industry, the purpose of this paper is to address these gaps in knowledge by exploring the role of customers and vendors in the diffusion of modern equipment technologies into the construction industry.,Using contemporary models of innovation diffusion which move beyond the simple dualistic problem of whether innovation is supply-pushed or demand-pulled, 19 semi-structured interviews were undertaken with customers and vendors involved in two major modern equipment technology trade exhibitions in Australia. This was followed by the collection of documentary data in the form of photos, directory books, marketing material, catalogues, websites and booth and exhibition layouts to validate the proposed model and provide insights into vendor marketing strategies. These data were analysed using both content analysis and principal component analysis (PCA).,According to the PCA and content analysis, vendor’s engagement in the adoption of modern equipment technologies falls into three stages that correspond to three stages in the customer’s adoption process. In the first stage, customers identify possible solutions and recognise new technologies following a previous recognition of a need. Vendors provide facilities for attracting potential customers and letting customers know that their technology exists and can help solve the customer’s problem. The second stage involves customers gaining knowledge about the details of the new technology, and vendors focusing on detailed knowledge transfer through written materials and demonstrations of the functionality of the new technology. In the third stage, customers have specific questions that they want answered to assist them in comparing different vendors and solutions. By this stage, vendors have built a close relationship with the customer and in contrast to earlier stages engage in two-way communication to help the customer’s decision process by addressing specific technical and support-related questions.,The originality and value of this research is in addressing the lack of research in modern equipment technology adoption for building construction and the lack of data on the role of vendors in the process by developing a new empirical framework which describes the stages in the process and the ways that customers and vendors interact at each stage. The results indicate that conceptually, as the construction industry becomes more industrialised, current models of innovation adoption will need to develop to reflect this growing technological complexity and recognise that vendors and customers engage differently in the adoption process, according to the type of technology they wish to adopt.

The evolution of stakeholder management practices in Australian mega construction projects

Abstract: The complicated nature of megaprojects requires appropriate analysis of multiple stakeholders to achieve project objectives and to accommodate stakeholder interests. During the last two decades, many stakeholder theories and empirical studies have sprouted. Although previous studies have contributed to the development of stakeholder theory, it seems that these theoretical advances have not been fully adopted and acknowledged in practices, especially in megaprojects. The purpose of this paper is to explore the evolution of stakeholder analysis and engagement practices adopted in the Australian megaprojects over the last two decades.,Four mega construction projects are described and analysed in this study. Secondary data were first assembled in order to get general knowledge of each case. Interviews were conducted with the project directors. Project documents were collected from the project teams and reviewed. Wherever the project information was unclear, e-mails were sent to the directors and the team members to confirm the details.,Project teams have started to apply snowball rolling and stakeholder attribute assessment methods to analyse stakeholders. However, there is still a way to adopt the “network” analysis perspective because the project teams are reluctant to use complicated tools which need specialists’ assistance. The stakeholder engagement practices have evolved to an extent where the project teams monitor the dynamics of stakeholders’ requirements. Projects teams have identified the importance of continuity to manage stakeholders in these massive projects. However, a structured method selection mechanism for stakeholder engagement has not been developed.,This study will help academics to understand the adoption progress and status of stakeholder management methods.

Measuring efficiency, effectiveness and overall performance in the Chinese construction industry

Abstract: The purpose of this paper is to develop a simultaneous measurement of overall performance and its two dimensions of efficiency and effectiveness in the case of Chinese construction industry.,A relational two-stage data envelopment analysis (DEA) method, which builds a relationship between component stages and can effectively identify inefficient stages, is developed and applied in order to measure overall performance, efficiency and effectiveness.,The construction industry of the Eastern region in China demonstrated the best results for overall performance, efficiency and effectiveness. The gaps between regions were primarily reflected in differences of pure technical efficiency. Performance indicators in the whole construction industry improved steadily and but could be improved more effectively. The coefficients of variation became smaller and more well-balanced across the whole industry.,Improving overall performance should focus on promoting construction efficiency at the project level and increasing management effectiveness at the company level. Sustainable development policies, which may include large investment and preferential policies, can narrow performance differences among the regions’ construction industries, and ultimately promote overall performance for the whole industry.,The relational two-stage DEA model is further developed in a variable returns-to-scale condition. The developed approach is generic and can provide a pathway for simultaneously measuring performance, efficiency and effectiveness and to recognise competitive advantages for promoting sustainable development.

Developing organizational capabilities to deliver lean and green project outcomes using BIM

Abstract: The purpose of this paper is to describe the process through which an organization develops organizational capabilities by tapping the technical skills and social skills of its employees in the use of Building Information Modeling (BIM) to deliver lean and green project outcomes. The resulting framework for BIM-based organizational capabilities development comprising of three hierarchical layers – technology, process and outcomes – is explained.,For this study, BIM has been identified as an enabler and a process for achieving lean and green outcomes on construction projects. Based on a detailed literature review, this paper identifies the organizational capabilities needed by the architecture, engineering and construction organizations to effectively implement BIM on construction projects. The study has been conducted through a sequential mixed-method approach involving semi-structured interviews, focus groups and qualitative comparative analyses.,It was discovered that to attain desired project outcomes, an organization needs to embrace an underlying BIM adoption culture not only within its project teams but also within the organization as a whole. The study also concluded that an integrated approach to BIM usage – connecting it with lean and green initiatives – on construction projects resulted in improved project outcomes, especially ones targeting lean and green aspects of improvements.,The proposed outline for BIM-based organizational capabilities will help the organizations focus on the “human factors” along with the technical factors while striving for successful usage within their organizations.,Using the organizational capabilities matrix, this paper highlights the importance of technical and social skill sets of an individual employee and their role in developing the organizational capabilities to gain the desired lean and green outcomes.

Virtual reality as integration environments for facilities management: Application and users perception

Abstract: Purpose The purpose of this paper is to explore the use of virtual reality environments (VRE) for maintenance activities by augmenting a virtual facility representation and integrating relevant information regarding the status of systems and the space itself, while providing simple ways to control them Design/methodology/approach The research focuses in the implementation of a VRE prototype of a building management system using game engine technologies To evaluate the prototype, a usability study has been conducted that contrasts the virtual reality interface with a corresponding legacy application showing the users perception in terms of productivity improvement of facilities management (FM) tasks Findings The usability tests conducted indicated that VREs have the potential to increase the productivity in maintenance tasks Users without training demonstrated a high degree of engagement and performance operating a VRE interface, when compared with that of a legacy application The potential drop in user time and increase in engagement with a VRE will eventually translate into lower cost and to an increase in quality Originality/value To date no commonly accepted data model has been proposed to serve as the integrated data model to support facility operation Although BIM models have gained increased acceptance in architecture engineering and construction activities they are not fully adequate to support data exchange in the post-handover (operation) phase The presented research developed and tested a prototype able to handle and integrate data in a flexible and dynamic way, which is essential in management activities underlying FM

Innovation in construction firms of different sizes: drivers and strategies

Abstract: Purpose The importance of innovation has been increasingly highlighted in construction as a large and complex industry sector that is more challenging than ever before To bridge the knowledge gap about how firm size affects innovation in construction, the purpose of this paper is to explore firm-level innovation through an empirical investigation and compare innovation in construction firms of different sizes in terms of drivers and strategies Design/methodology/approach This research adopts a combination of a literature review, a group of qualitative interviews and a quantitative questionnaire survey In this research, the questionnaire survey is the main instrument to collect empirical data Main contractors, subcontractors and specialist contractors as well as suppliers of labor, material and equipment are used in this research to represent construction firms of different sizes On the other hand, client organizations, design firms and management consultants are not included in this research Findings This research provides clear evidence for the embrace of innovation in construction Many forces can drive construction firms to innovate and many strategies can be applied to construction innovation Innovation drivers can be either internal or external On the other hand, innovation strategies fall into four categories: technology, resource, marketing and management For innovation drivers and strategies, both commonalities and differences can be found among construction firms of different sizes Originality/value The finding of commonalities describes the general trend of innovation development in construction It also encourages all construction firms to innovate regardless of firm size On the other hand, the finding of differences enables construction firms of different sizes to realize what forces better drive their innovation and what strategies are more appropriate for their innovation A thorough understanding of innovation drivers and strategies offers an important framework for construction organizations and practitioners to pursue best practice

Integrating value management into sustainable construction projects in Hong Kong

Abstract: Integrating sustainability into the value management (VM) process can provide a strategic platform for promoting and incorporating sustainable design and development during the lifespans of construction projects. The purpose of this paper is to investigate the strengths, weaknesses, opportunities and threats (SWOT) for integrating sustainability into the VM process in Hong Kong.,Following an extensive literature review, 45 attributes were identified and grouped into strength, weakness, opportunity and threat elements. A questionnaire survey based on these groupings was supported by semi-structured interviews with public sector clients, value managers and VM facilitators. They shared their experience and views on how to integrate sustainability into the VM exercises.,The triangulated results of the survey and interviews are presented in this paper. The ranking of the SWOT analysis results indicate that VM does provide opportunities for multidisciplinary professionals and stakeholders to focus on issues relating to society and the environment, which is considered a main strength. The major weakness of integration is the lack of well-trained staff and low levels of VM participant expertise in relation to the sustainable construction issue.,Current practices generally neglect integration of sustainability into the VM process due to cost and time constraints. There are ample strengths and opportunities recommended by this study for integrating sustainability into the VM process which are beneficial for the clients and contractors for achieving value for money and meeting sustainability targets.,There are immense opportunities for integrating sustainability into the VM process, including encouragement of the reduction, reuse and recycling of construction and demolition waste. However, threats presented by integration include the additional time and costs required for achieving sustainability targets.,Findings and recommendations provided in this paper should be helpful to decision makers including clients and VM facilitators for the successful integration of the sustainability concept into the VM process.

Project scheduling with time, cost and risk trade-off using adaptive multiple objective differential evolution

Abstract: As often in project scheduling, when the project duration is shortened to reduce total cost, the total float is lost resulting in more critical or nearly critical activities. This, in turn, results in reducing the probability of completing the project on time and increases the risk of schedule delays. The objective of project management is to complete the scope of work on time, within budget in a safe fashion of risk to maximize overall project success. The purpose of this paper is to present an effective algorithm, named as adaptive multiple objective differential evolution (DE) for project scheduling with time, cost and risk trade-off (AMODE-TCR).,In this paper, a multi-objective optimization model for project scheduling is developed using DE algorithm. The AMODE modifies a population-based search procedure by using adaptive mutation strategy to prevent the optimization process from becoming a purely random or a purely greedy search. An elite archiving scheme is adopted to store elite solutions and by aptly using members of the archive to direct further search.,A numerical construction project case study demonstrates the ability of AMODE in generating non-dominated solutions to assist project managers to select an appropriate plan to optimize TCR problem, which is an operation that is typically difficult and time-consuming. Comparisons between the AMODE and currently widely used multiple objective algorithms verify the efficiency and effectiveness of the developed algorithm. The proposed model is expected to help project managers and decision makers in successfully completing the project on time and reduced risk by utilizing the available information and resources.,The paper presented a novel model that has three main contributions: First, this paper presents an effective and efficient adaptive multiple objective algorithms named as AMODE for producing optimized schedules considering time, cost and risk simultaneously. Second, the study introduces the effect of total float loss and resource control in order to enhance the schedule flexibility and reduce the risk of project delays. Third, the proposed model is capable of operating automatically without any human intervention.

Planning and controlling design in engineered-to-order prefabricated building systems

Abstract: Purpose The purpose of this paper is to propose a model for planning and controlling the design process in companies that design, manufacture and assemble prefabricated engineer-to-order (ETO) building systems. This model was devised as an adaptation of the Last Planner® System for ETO multiple-project environments. Design/methodology/approach Design science research, also known as prescriptive research, was the methodological approach adopted in this research. An empirical study was carried out at the design department of a leading steel fabricator from Brazil, in which the proposed model was implemented in six different design teams. Findings The main benefits of the proposed model were shielding design work from variability, encouraging collaborative planning, creating opportunities for learning, increasing process transparency, and flexibility according to project status. Two main factors affected the effectiveness of the implementation process commitment and leadership of design managers, and training on design management and project planning and control core concepts and practices. Research limitations/implications Some limitations were identified in the implementation process: similarly to some previous studies (Ballard, 2002; Codinhoto and Formoso, 2005), the success of constraint analysis was still limited; some of the metrics produced (e.g. ABI, causes of planning failures) have not been fully used for process improvement; and systematic feedback about project status was not properly implemented and tested. Originality/value The main contributions of this study in relation to traditional design planning and control practices are related to the use of two levels of look-ahead planning, the introduction of a decoupling point between conceptual and detail design, the proposition of new metrics for the Last Planner® System, and understanding the potential role of visual management to support planning and control.

Survival strategies of built environment organisations in a challenging economy

Abstract: The economic downturn in Nigeria calls for the need to appraise the survival strategies being adopted by organisations within the built environment, as it plays a major role in the development of every nation. The purpose of this paper is, therefore, to appraise the survival strategies of organisations within the built environment, with a view to showcasing these strategies to ensure continuous survival of organisations within the industry.,The study adopted a survey approach, and construction professionals across the six geo-political zones of the country were sampled using structured questionnaire. Data gathered were analysed using percentage, Kruskal–Wallis H-test and factor analysis.,The study revealed that organisation- and workforce management-related strategies are the most adopted survival strategies in the country, as they have the highest factor loading and accounts for about 37 per cent of the total extracted factors. This is followed by the adoption of strategies relating to organisation’s innovation, diversification, financial management and organisation’s networking, the combination of which accounts for 27.5 per cent of all extracted factors.,Findings of this study imply that although organisations within the built environment see the need for effective management of their organisation and workforce in a bid to survive in the harsh economic situation of the country, more need to be done as regards the other identified survival strategies, as they can help ensure the survival of these organisations.,This study contributes to the body of knowledge as it showcases the survival strategies being adopted by the different organisations within the built environment in the challenging Nigerian economy, as against the usual common practice of studying specific organisations within the industry.

An analysis of the delivery challenges influencing public-private partnership in housing projects: The case of Tanzania

Abstract: The purpose of this paper is twofold: first, to identify and rank the challenges influencing the delivery of the housing public-private partnership (HPPP) in Tanzania; and second, to suggest solutions in the form of a conceptual public-private partnership (PPP) framework model that will address the identified challenges and boost the chances of success.,Using a convergent parallel (concurrent) mixed method approach, data were collected from 28 stakeholders involved with HPPP projects in Tanzania using a hand-delivered and e-mail survey and 13 semi-structured interviews with public and private sector respondents. The quantitative data included subjecting the 19 challenges as identified from the literature to parametric tests such as one-sample t-tests and descriptive statistics tests such as measures of central tendencies and frequency analysis through Statistical Package for Social Sciences (SPSS 22.0). Qualitative data employed content analysis. The research was further underpinned by a number of theoretical perspectives such as Gidden’s structuration theory, contingency theory, relational and equity theory.,The top five ranked challenges influencing the delivery of HPPP were “inadequate PPP skills and knowledge”; “poor contracting and tendering documents”; “inadequate project management”; “inadequate legal framework”; and “misinformation on financial capacity of private partners”. The least six ranked and most significant challenges based on the one-sample (single) t-tests were as follows: “Poor risk allocation”; “inexperienced private partner”; “unequal qualification and contributions of expertise”; “poor enabling environment to attract competent partners”; “inadequate mechanisms for recovery of private investors’ capital”; and “high costs in procuring PPP projects”. The qualitative study further confirmed the challenges and cited the reason for the failure of joint venture projects as the lack of motivation for undertaking similar PPP projects. Despite the increased awareness of PPP projects and associated marginal benefits, the main impediment to the uptake and delivery of PPP housing projects remained the lack of skills and expertise.,The proposed framework model is not yet tested, but since this paper is part of the ongoing research, the next stage involves the testing and validation of the model. Future studies could test the applicability of the proposed framework in other HPPP projects in Tanzania, and in other similar developing countries. Second, the validated framework can contribute towards addressing similar challenges as well as providing guidance. The proposed framework model is not yet tested, but since this paper is part of the ongoing research, the next stage involves the testing and validation of the model. Furthermore, recommendation for future research is to test the alignment of the identified challenges to the proposed remedial solutions across the five phases within the proposed PPP framework with a number of case studies.,The identified challenges were used to form the basis of the framework presented in this paper. Furthermore, these provide useful information, thus leading to increased awareness to enable successful delivery of HPPP in Tanzania. Similarly, both the government and policy makers could use the findings as the basis for re-examining the existing PPP policy and regulations, and reflecting on the existing situation with a view to improving the delivery of future HPPP projects.,The empirical study is among the first that identifies and ranks the challenges of PPP for housing projects delivery within the Tanzanian context. The identification of the challenges enabled their ranking, resulting in the mapping out of the most critical challenges. Furthermore, using the Gidden’s structuration theory, the study illustrates how institution mechanisms (structures) address these delivery challenges, thus influencing the implementation of HPPP in Tanzania, and how individual stakeholders (human agents or agency) are able to make choices (advocated solutions) in dealing with the challenges. More so, these constraints (challenges) as identified and viewed through the contingency and equity theoretical lenses form the foundation for developing the PPP conceptual framework. The proposed framework would thus serve as a mechanism for providing practical solutions as well as reducing the level of severity of the identified challenges.

Safety climate as a relative concept: Exploring variability and change in a dynamic construction project environment

Abstract: The purpose of this paper is to use a longitudinal approach to measure safety climate at construction projects, and explore the relationship between safety climate and the level of project completion in the dynamic construction project environments.,Multi-wave safety climate surveys were conducted at four processing plant construction projects in New Zealand. Safety climate was measured with a multi-level measurement instrument, which measured construction workers’ perceptions of client’s organisational safety response (COSR), principal contractor’s organisational safety response (PCOSR), supervisors’ safety response (SSR) and co-workers’ safety response (CWSR).,At the organisational level, the research identifies a general downward change trend in workers’ perceptions of COSR and PCOSR. At the group level, no clear or consistent change trend is identified between the level of project completion and workers’ perceptions of SSR and CWSR.,The research suggests that the construction project management should consistently emphasise the importance of safety, even when they are facing production pressure. The research highlights the opportunity to examine the role of supervisors’ leadership as an antecedent to the group-level safety climate and the development of workers’ safety concerns for their co-workers over time.,This research provides the starting point for understanding safety climate in the dynamic and constantly changing construction project environments, in which the relative priorities change, adverse events arise and production pressures fluctuate over time.