209 resultados para Construction Industry

em Deakin Research Online - Australia


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The Australian Government commissioned a Royal Commission into the building industry in Australia that reported to Parliament in August 2002. Volume 6 of this report, released in February 2003, discussed certain aspects in occupational health and safety in Australia and leaned toward deterrents as a means of achieving reform. This research defines both incentives and deterrents used to increase awareness of, and improve safety on, building sites in Victoria, a state of Australia. A pilot survey questionnaire was developed following a literature review and industry employer representatives were invited to participate. Industry awareness of Government incentive programmes was found to be low, with less than a quarter stating they read Government strategies. One fund that provides actual research monies into health and safety was known to very few of the respondents. Of the employers surveyed, the majority agreed that financial fines do act as a valid deterrent. Increases in worker compensation premiums were seen as the greatest deterrent due to the effect on company overheads and thus competitive tendering bids. Deterrent programmes were more readily acknowledged by employers as they had an element of self promotion with employers attempting to avoid their application.

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This paper evaluates a recently developed hybrid method for the embodied energy analysis of the Australian construction industry. It was found that the truncation associated with process analysis can be up to 80%, whilst the use of input-output analysis alone does not always provide a perfect model for replacing process data. There is also a considerable lack in the quantity and possibly quality of process data currently available. These findings suggest that current best-practice methods are sufficiently accurate for most typical applications, but this is heavily dependant upon data quality and availability. The hybrid method evaluated can be used for the optimisation of embodied energy and for identifying opportunities for improvements in energy efficiency.

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While comparing both the size and structure between the UK and Australian construction industries, this study reveals that the UK construction industry is about two and a half times larger than the Australian construction industry, and both industries are dominated by the proportion of small firms. The issue of fragmentation is characteristic of the construction industries in these two countries, and beyond. This study then develops a self recruiting-subletting cost indifference point model to explain why fragmentation occurs. Although the high proportion of small firms in the construction industry has been criticised as it prevents the exploitation of economies of scale, the self recruiting-subletting cost indifference point model theoretically proposes that subletting is usually profitable for construction firms. Thus the size distribution of the construction industry has a propensity to skew towards small firms.

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Photography within the construction industry is merging into a new form of image capture and output that is a mix of conventional photography and digital imagery. As this transition takes place it is anticipated that the credibility of the image may also change within in the communication chain that links the various disciplines within the building industry. The following paper presents the development and results of a pilot survey of building professionals, which addresses the quality, content and authenticity of both conventional photography and digitally produced images used within the construction industry.

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The rapidly increasing construction demand in China, particularly spurred by the coming 2008 Beijing Olympic Games and the 2010 Shanghai Expo, provides challenging opportunities for overseas construction enterprises. Therefore understanding the structure and dynamics of construction industry in China is crucial, particularly the potential changes of the market after the China's entry into the World Trade Organization. This paper analyses the development of construction economics and institutional regulations in the construction market, and provides a comprehensive image on the Chinese construction sector in the global environment.

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Environmental assessment of buildings typically focuses on operational energy consumption in an attempt to minimise building energy consumption. Whilst the operation of Australian buildings accounts for around 20% of total energy consumption nationally, the energy embodied in these buildings represents up to 20 times their annual operational energy. Many previous studies, now shown to be incomplete in system boundary or unreliable, have provided much lower values for the embodied energy of buildings and their products. Many of these studies have used traditional embodied energy analysis methods, such as process analysis and input-output (1-0) analysis. More recently, hybrid embodied energy analysis methods have been developed, combining these two traditional methods. These hybrid methods need to be compared and validated, as these too have been considered to have several limitations. This paper aims to evaluate a recently developed hybrid method for the embodied energy analysis of the Australian construction industry, relative to traditional methods. Recent improvements to this hybrid method include the use of more recent 1-0 data and th.fl inclusion of capital energy data. These significant systemic changes mean that a previous assessment of the methods needs to be reviewed. It was found that the incompleteness associated with process analysis has increased from 49% to 87%. These findings suggest that current best-practice methods of embodied energy analysis are sufficiently accurate for most typical applications. This finding is strengthened by recent improvements to the 1-0 model.

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While there have been many attempts at comparisons of construction performance over the past 50 years, the results have generally been inconclusive and/or contradictory.

Such comparisons are of great interest to industry, governments and theorists alike but there is little agreement as to how they are best done. A variety of methodologies have been used, however, the lack of satisfactory outcomes has been due largely to one factor, the lack of a truly reliable method for comparing construction costs in different currencies

Exchange rates are recognised as being unsuitable, and while purchasing power parity (PPP) has a long history, the method still has many critics. In addition, the nature of the building industry and its products makes the establishment of reliable construction PPPs very difficult. Both the UN’s International Comparison Program (ICP) and the European Union gather data for the production of construction-specific PPP indices, but neither body publishes them, as there is too much doubt about their reliability.

New approaches are being developed and some are soon to be trialled. This paper looks at the problems, describes and discusses some new approaches, and assesses their potential.

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Understanding industries in terms of the concepts of chains, clusters and networks is becoming increasingly important in economies around the world. Supply chain management for an individual organization is an
emerging field of research in the construction management discipline, but less attention has been devoted to investigating the nature of the construction supply chains and their industrial organizational economic environment. This selected review of construction and mainstream management supply chain literature is organized around four themes; distribution, production, strategic procurement management and industrial
organization economics, and highlights the need to develop an industrial organization economic supply chain framework for construction. The merging of the supply chain concept with the industrial organization model
as a methodology for understanding firm conduct and industry structure and performance is an important contribution to both construction supply chain and construction economic theory. Much of the industrial organization supply chain literature has tended to focus upon manufacturing industries, where typically firms are permanent organizations. This raises issues as to the differences between industries founded upon temporary compared with permanent organizations. There is potential for the development of an industrial organization methodology applicable to the project based industry. Ultimately industrial organization research seeks to have direct implications for industry performance and government policies.

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The professional project manager is a sought after commodity (McManus, 1995:12). Many companies face increasing demands to complete projects faster, at lower costs and to higher specifications and as Lock (1996;50) comments; “This work, far from requiring specialisation, demands a sufficient general understanding of the work carried out by those participants for the project manager to be able to discuss the work sensibly”. Though for some the term project manager can be clearly identified, others believe the terms project manager and project management, as used in the construction industry, mean all things to all men and lead to confusion (The Chartered Institute of Building, 1982;12). The lack of clarity surrounding the role of project manager made this area worthy of investigation.

This research sought a deeper understanding of the project management role and an identification of the skills and professionals associated with it. The desk top study revealed definitions of the role and perceptions of the skills involved. The literature showed that authors believed in the need for a balance between knowledge, experience and training and the types of professions involved. The research methodology comprised a qualitative approach, with a questionnaire sent out to a non-random sample of practices specialising in project management. The data analysis adopted uni and bi-variant methods, using SPSS. The research found that the role of the project manager is very broad. Furthermore it is adopted by many construction professions as the background of the project manager is largely perceived as irrelevant to the role. A definition is proposed and relevant skills are identified, finally the importance of experience and training is highlighted.

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Trust is an underlying psychological condition that can cause cooperation or risk-taking. Trust is considered as a predominant feature and a central mechanism in business transactions, especially among Chinese. Trust-based relationships create advantages in conducting business such as lowering cost, shortening duration, and improving performance. Indispensable conditions for trust to arise are relationships and risks. Different risks surface as a result of different levels of relationships. Sustained trust is therefore fostered by various means to counterbalance those risks. In order to assess the links between distinct trust-related features, a model is constructed and tested through a questionnaire survey in China. The findings generally support the model in terms of explaining the dominant relationships, inherent risks, and trust-fostering tools. It is recommended that firms adopt the refined model and utilize successful practices verified in this paper to foster trust and relationships and in turn secure project success.