Cost factors affecting the design of ground-supported floors

The cost of concrete ground-supported floor slabs represents a significant proportion of the total capital cost of industrial projects. There are many structural design issues that impact on the concrete contractors’ method of construction. This is becoming more apparent with the use of new high-technology levelling and trowelling equipment, which has significantly increased the pour and finishing rates, resulting in much faster slab construction times compared with the traditional methods of construction. Selection of both the design and the construction methods exerts a large influence on the initial cost. According to the results of the research reported in this paper, it may be possible to save between 2-4 per cent of the building cost if high technology solutions are incorporated into the design and construction process. This paper investigates cost issues that impact on the design and construction of ground-supported floors for industrial buildings.

The accuracy of housing forecasting in Australia

Forecasting is an integral part of all business planning, and forecasting the outlook for housing is of interest to many firms in the housing construction sector. This research measures the performance of a number of industry forecasting bodies; this is done to provide users with an indicator of the value of housing forecasting undertaken in Australia. The accuracy of housing commencement forecasts of three Australian organisations – the Housing Industry Association (HIA), the Indicative Planning Council for the Housing Industry (IPC) and BIS-Shrapnel – is examined through the empirical analysis of their published forecasts supplemented by qualitative data in the form of opinions elicited from several industry “experts” employed in these organisations. Forecasting performance was determined by comparing the housing commencement forecast with the actual data collected by the Australian Bureau of Statistics on an ex-post basis. Although the forecasts cover different time periods, the level of accuracy is similar, at around 11-13 per cent for four-quarter-ahead forecasts. In addition, national forecasts are more accurate than forecasts for individual states. This is the first research that has investigated the accuracy of both private and public sector forecasting of housing construction in Australia. This allows users of the information to better understand the performance of various forecasting organisations.

Effect of company size on occupational health and safety

It is mandatory in all Australian jurisdictions for construction companies to provide a safe working environment for their workers and sub-contractors. Consequently, occupational health and safety (OHS) is a major issue for construction companies mainly due to the fear of prosecution. The introduction of zero tolerance by the Victorian government “WorkCover Authority” in 1999 provided increased legislative OHS standards for the construction industry. This has placed an increased burden on construction companies especially small firms that are not in a position of financial strength. This research is based on benchmarking study of OHS performance of 44 construction companies in
Victoria, Australia. The results show that the size of the company is a major contributing factor to their OHS performance. Small companies employing less than 25 employees have comparatively low levels of OHS performance compared to larger firms. Company size is a limiting factor that impacts on the ability of small firms to implement comprehensive OHS plans. This research calls into question that notion that increasing legislative requirements will improve OHS outcomes.

A social network analysis model for analysing stakeholder-associated safety risks in infrastructure projects

An important strategy in the long-term blueprint for making Australia's 18 capital and major regional cities more productive, sustainable and liveable is to develop high quality public infrastructure systems to improve civic quality of life. Because of the unique features of construction activities, such as long period, complicated processes, and dynamic organizational structures, infrastructure projects normally involve multiple stakeholders and are subject to various risks, especially safety issues. Any negligence or mismanagement of critical safety risks will have huge impact on achieving project objectives and success. Although many previous studies have identified and assessed various safety risks in construction industry, a main research gap is that these studies ignored a fact that most risks are interrelated and associated with internal and external stakeholders of the projects. The lack of a theoretical foundation and appropriate methods for analysing stakeholder-associated safety risks and their interdependencies in infrastructure projects hinders effective risk management processes and the formulations of decision strategies. This research aims at enabling higher performance in strategic safety risk management in infrastructure projects through the development of a holistic risk analysis model using Stakeholder and Social Network Theories. The outcomes can broaden project managers' awareness of emerging influential safety risks and enhance their ability to perceive, understand, assess, and mitigate safety risks in an effective and efficient way; thereby higher performance in strategic risk management could be achieved in infrastructure projects.

Understanding the conditions of trust in the ALT and AMT relationships in project alliancing

This research also aims to develop a robust trust framework which can improve the understanding of the theory to support trust in alliancing, in particular the ALT and AMT relationship to improve project success factors. Research in trust within the construction industry has not yet examined how the relational signals within the five situations in the normative framework identified by Siegwart Lindenberg affect the level of trustworthiness between partners. More research is necessary to explore potential frameworks that can be used as the basis for future research in trust. Data from previous research in the performance of alliance has been used to verify the proposed framework. The framework will be developed in the ALT and AMT relationship to improve project success factors within the alliance. The originality of this research is trying to understand trust in the context of project alliancing in Australia as there are an increasing number of construction projects using the alliancing procurement method. Additionally, this research is examining the conditions of trust from the ALT and AMT teams specifically formed for the collaboration of project alliancing.

Constructability : a model framework for knowledge transfer development, a three country comparison

Constructability is an important approach that allows the building industry to achieve quality outputs making best use of resources – the linked goals of time, cost and quality. Information supply and knowledge transfer are central to this and are recognized as integral to an industry strategy to improve productivity. However, poor delivery of information to those at the construction site and lack of effective methods of transferring knowledge between parties involved in construction become major challenges. This paper reviews the building production practices and information networks adopted by three countries to achieve better constructability practices. The elements of ‘control’, ‘innovation’, ‘best practice’ and ‘audit’, identified as key to improving knowledge transfer, are modelled for the construction sectors of Singapore, Australia and Malaysia. A framework for knowledge transfer is proposed to promote better practices in the construction industry.

Framework for improving the constructability of raised floor systems in Australian office buildings

Despite the great benefits that it can potentially contribute to modern workplace environment, raised floor system (RFS) encountered many barriers in the process of its applications for the fitout of office buildings in the Australian construction industry. Through a set of comprehensive research activities, the significant influence factors (SIFs) and problems associated with the RFS fitout implementation are identified. Further discussion of these SIFs and problems unearths a range of project level critical factors (PLCFs) pertaining to the RFS fitout design, construction, operation and maintenance, which presents firsthand checklists for the project team to review in the project delivery process. These factors need to be accommodated appropriately in order to enhance the implementation of the RFS fitout in Australian office buildings. Following a constructability study, a framework was developed by integrating these SIFs and PLCFs into the delivery of the RFS fitout in an aim to enhance the project constructability and minimize problems in the RFS service performance.

Management perspective for TQM solution

Quality management is an important research topical in construction industry. The aim of this paper is to review and investigate, via extensive literature reviews, the management perspectives when construction organization implementing total quality management (TQM). If it is successfully operated, competitive advantage will be enhanced that may lead to eight beneficial areas [improve quality and environmental performance; broaden business opportunities; benefit the community; increase market share; improve finance situation; enhance organizational effectiveness; streamline response to legal issues and lessen insurance budget] which favour commercial viability. However, there are challenges in doing so which include inexperience, resources and administrative constraints, inadequate management skill, and cultural differences. Therefore, in order to foster quality culture, it needs four management directions, namely construction management (CM), knowledge management (KM), project management (PM) and human resources management (HRM). One can reasonably conclude that the quality improvements by TQM are going to create long term commercial advantages.

The soft systems approach to understanding trust in alliances in Australia

Alliances are complex projects with high levels of risk and uncertainty. Despite the pain share and gain share commercial arrangement in alliances, Trust is still an issue between the Alliancing Leadership Team (ALT) and Alliancing Management Team relationship (AMT). Although the concept and components of trust have been discussed by various researchers, the characteristic of trust under different situations has not been tested within the procurement research domain. Based on semi-structured interviews with the members of the ALT and AMT of an alliance project in Australia the underlying trust based relationships between the AMT and ALT were investigated using the Soft Systems Methodology (SSM). Results demonstrate that cognitive, affect, system and cognitive-affect based trust are mediated by common good, needs, sharing, breach temptation and mishap situations. This research demonstrates that the adversarial culture of the Australian construction industry cannot be changed by the implementation of trust principles alone. The culture of suspicion dominating the ideological view of the construction industry requires organizational learning between alliance parties to execute appropriate behaviours, aligned with the alliancing philosophy, to effectively achieve ideal collaboration.

Using Pareto principle plus statistic methodology in establishing a cost estimating model

Previous experience and research indicated that the Pareto Principle (80/20 Principle) has been widely used in many industries to achieve more with less. The study described in this paper concurs that this principle can be applied to improve the estimating accuracy and efficiency, especially in design development stage of projects. In fact, establishing an effective cost estimating model to improve accuracy and efficiency in design development stage has been a subject, which has attracted many research attentions over several decades. For over almost 40 years, research studies indicate that using the 80/20 Principle is one of the approaches. However, most of these studies were built by assumption, theoretical analysis or questionnaire survey. The objective of this research is to explore a logical and systematic method to establish a cost estimating model based on the Pareto Principle. This paper includes extensive literatures review on cost estimating accuracy and efficiency in the construction industry that points out the current gap of knowledge area and understanding of the topical. These reviews assist in developing the direction for the research and explore the potential methodology of using the Pareto Principle in the new cost estimating model. The findings of this paper suggest that combining the Pareto Principle with statistical analysis could be used as the technique to improve the accuracy and efficiency of current estimating methods in design development stage.

Critical factors to the success of alliances in Australia

Governments in Australia face the challenge of meeting the growing demand for new infrastructure, which can be delivered more quickly in an increasingly complex environment. Alliance Contracting has been introduced to overcome some of the challenges by, aligning the incentives of the partners, clearly defining their rights and responsibilities, and providing the means for resolving disputes when they arise. The purpose of this research was to explore the critical success factors of Alliance Contracting in order to understand the roles of the various terms and conditions and how they fit together to create a relationship-based contract. A qualitative technique of semi-structured in-depth interviews was used to gather primary data in response to the research questions. The research aimed to develop an in-depth understanding of Alliance Contracting. The results show that the key contributor to the success or failure of Alliances is whether all the partners benefit equitably from the venture. Analysis of the data indicates that, in general, trusting attitudes/behaviour is perceived to be the most important critical success factor for Alliance Contracting in the broader construction industry. The second most popular critical success factor was shared and aligned goals. The third issue was the evidence of open behaviour, and the final issue was the presence of shared knowledge. The implication of this research is that there are several key factors that were necessary preconditions for successful Alliances.