Search results

The issue of low productivity has remained a very stern and chronic problem in construction projects. Previous studies have found poor communication as one of the leading causes of low-construction productivity. Recent advances in the field of information and communication technologies (ICT) have the potential to enhance communication and access to information in construction projects. However, the implications of the use of mobile ICT on construction productivity have not been investigated in sufficient depth, especially from the perspectives of its users, i.e. construction management (CM) professionals. The paper aims to discuss these issues.

A focus group session involving ten experienced CM professionals from different organisations of the South Australian construction industry was moderated by a group of four researchers to gather data on mobile ICT usage and its implications for construction productivity.

Lack of training and guidelines on effective applications of these technologies to construction projects is a major bottleneck. Results indicate that despite noticeable advances in mobile ICT, differences in usage style and user attitude have limited their overall impact on productivity.

This paper is based on data gathered from CM professionals working in the South Australian construction industry.

The study highlights the importance of strategising the use of mobile ICT to achieve the desired productivity rates through policy, training, work-life balance, and deeper and wider understanding of these technologies.

The study examines the perceptions of CM professionals on the usefulness of mobile ICT in construction projects and its implications for construction productivity.

A combined windcatcher and light pipe (SunCatcher) was installed in the seminar room at the University of Reading, UK. Monitoring of indoor environment in real weather conditions was conducted to evaluate the application of windcatchers for natural ventilation. In addition, a subjective occupancy survey was undertaken. External weather conditions and internal indoor air quality indicators were recorded. The “tracer‐gas decay” method using SF₆ was used to establish air change rate for various conditions. The results indicated that the ventilation rate achieved through the windcatcher depends on the difference between internal and external air temperatures, and on wind speed and direction, in agreement with other published work in the area. The indoor air quality parameters were found to be within acceptable levels when the windcatcher was in operation. The measured air change rate was between 1.5ac/h and 6.8ac/h. Occupants’ questionnaires showed 75 per cent satisfaction with the internal conditions and welcomed the installation of the systems in UK buildings.

The purpose of this paper is to investigate the concepts of intelligent buildings (IBs), and the opportunities offered by the application of computer‐aided facilities management (CAFM) systems.

In this paper definitions of IBs are investigated, particularly definitions that are embracing open standards for effective operational change, using a questionnaire survey. The survey further investigated the extension of CAFM to IBs concepts and the opportunities that such integrated systems will provide to facilities management (FM) professionals.

The results showed variation in the understanding of the concept of IBs and the application of CAFM. The survey showed that 46 per cent of respondents use a CAFM system with a majority agreeing on the potential of CAFM in delivery of effective facilities.

The questionnaire survey results are limited to the views of the respondents within the context of FM in the UK.

Following on the many definitions of an IB does not necessarily lead to technologies of equipment that conform to an open standard. This open standard and documentation of systems produced by vendors is the key to integrating CAFM with other building management systems (BMS) and further harnessing the application of CAFM for IBs.

The paper gives experience‐based suggestions for both demand and supply sides of the service procurement to gain the feasible benefits and avoid the currently hindering obstacles, as the paper provides insight to the current and future tools for the mobile aspects of FM. The findings are relevant for service providers and operators as well.

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.

This paper aims to identify the pre-design critical success factors CSFs pertaining to different types of construction projects in the rapidly growing city of Dubai, by adopting one of the multi-criteria decision-making (MCDM) tools, analytic hierarchy process (AHP).

A mapping process was utilized to filter and categorize CSFs gathered from a literature review. A total of 5 main and 27 sub-main criteria were derived following RIBA's Plan of Work 2020 (Royal Institute of British Architects). A questionnaire was distributed among experts in the construction industry to assess the development in vicinity of the Sheikh Zayed Road (SZR). An analysis was conducted to prioritize the CSFs as per experts' judgment.

According to the experts' combined judgment, CSFs linked to client requirements (CR) are the most significant at 22.9% priority weight. Overall project review (OPR), project team (PT), project preparation (PP), previous projects feedback and experience (PPF) success factors achieved 21.4, 19.5, 18.9 and 17.2%, respectively. Within CR, sub-CSFs of client consultation and acceptance (CCA), responsibly matrix for stakeholders (RM), client track record (CTR) and client level of service (CLS) were prioritized by the experts.

This work was carried out by respondents based in UAE only, and focused on one urban stretch of Dubai, this could be replicated by employing experts from other countries and other case study areas within Dubai.

This study would significantly have an impact on the education of current and future project managers, planners, engineers, architects and, most importantly, decision-makers on helpful pre-design strategies for enhancing their project success. This research could assist, direct and educate management, as the management provides/manages the necessary resources for projects. Furthermore, management also has the authority to choose project leaders/consultants that will make the project successful.

Consolidating Dubai's phenomenal growth requires prioritizing socio-economic strategies in future development projects at the pre-design and pre-construction stage, which will improve the city's business environment and the quality of life for Dubai's residents. This opens up fresh possibilities over the next few years for integrating robust procedures for successful execution, monitoring and evaluation of future construction developments from the outset.

Although many studies have identified various factors as important for successful building projects, few appear to have done a complete analysis using pre-design criteria to systematically categorize professional views on the relative relevance of CSFs. There is a lack in research examining the factors that led to Dubai's successful construction projects. This study attempts to bridge this gap and provide a prioritized framework reference model to assist project/asset managers and decision-makers.

Although the adverse effects of construction activities on the environment and the need for sustainable construction practices are recognised in both research and practice, any significant shift in the selection and use of construction materials from the sustainability perspective has not taken place in many building projects. Still, conventional construction materials are widely used in building projects in both developed and developing countries. This study attempts to identify the main barriers to the use of sustainable materials in building projects in an advanced economy such as Australia.

This study adopted a questionnaire survey approach to examine the main reasons behind the low usage of sustainable materials in building projects. Based on the relative importance index, exploratory factor analysis and multinomial logistic regression analysis, the study examined the main barrier measures and barrier factors to the use of sustainable materials in building projects.

The findings reveal that critical barriers to the use of sustainable materials are related to cost and profit considerations, the unwillingness of the key stakeholders to incorporate these materials into building projects, lack of incentives and government policies. The factor analysis reduced the critical barrier measures into three factors: techno-economic considerations, cost and delay concerns and resistance to use. Furthermore, multinomial regression analysis based on the extracted factors identified techno-economic considerations as the main barrier factor to the use of sustainable materials in building projects.

The empirical results of this research can inform construction practitioners, organisations and policymakers on how to increase the use of sustainable building materials in the construction industry.

Identification of barriers to the use of sustainable building materials is a prerequisite to improve their uptake and use in the construction industry. The study fills a gap in the existing research on the use of sustainable materials in building projects in Australia.

To evaluate the control strategy for a hybrid natural ventilation wind catchers and air‐conditioning system and to assess the contribution of wind catchers to indoor air environments and energy savings if any.

Most of the modeling techniques for assessing wind catchers performance are theoretical. Post‐occupancy evaluation studies of buildings will provide an insight into the operation of these building components and help to inform facilities managers. A case study for POE was presented in this paper.

The monitoring of the summer and winter month operations showed that the indoor air quality parameters were kept within the design target range. The design control strategy failed to record data regarding the operation, opening time and position of wind catchers system. Though the implemented control strategy was working effectively in monitoring the operation of mechanical ventilation systems, i.e. AHU, did not integrate the wind catchers with the mechanical ventilation system.

Owing to short‐falls in the control strategy implemented in this project, it was found difficult to quantify and verify the contribution of the wind catchers to the internal conditions and, hence, energy savings.

Controlling the operation of the wind catchers via the AHU will lead to isolation of the wind catchers in the event of malfunctioning of the AHU. Wind catchers will contribute to the ventilation of space, particularly in the summer months.

This paper demonstrates the value of POE as indispensable tool for FM professionals. It further provides insight into the application of natural ventilation systems in building for healthier indoor environments at lower energy cost. The design of the control strategy for natural ventilation and air‐conditioning should be considered at the design stage involving the FM personnel.

This chapter discusses the profound and influential impact the construction industry has on the national economy, together with the huge negative effect it has on the environment. It argues that by adopting smart and industrialised prefabrication (SAIP), the Australian construction industry, and the construction industry globally, is well positioned to leverage the circular economy to advance future industries with less impact on our natural environment. It discusses aspects of the application of digital technologies, specifically building information modelling, virtualisation, augmented and virtual reality and 3D printing, coupled with reverse logistics as a proponent for advancing the circular economy through smart, digitally enabled, industrialised prefabrication. It further postulates a framework for SAIP for the circular economy.