AS 2015 Volume 22 Issue 1

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http://hdl.handle.net/11660/2494

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Browsing AS 2015 Volume 22 Issue 1 by Subject "Construction"

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    Toward improved construction health, safety, and ergonomics in South Africa: a working model for use by architectural designers
    (University of the Free State, 2015) Goldswain, Craig; Smallwood, John
    English: The construction industry produces a high rate of accidents. Despite evidence that up to 50% of accidents can be avoided through mitigation of hazards and risks in the design phase of construction projects, architectural designers do not adequately engage in designing for construction health, safety, and ergonomics. The article reports on the development of an architectural design-oriented model toward a reduction of construction hazards and risks. The research intertwined a range of secondary data with four provisional studies undertaken in the Eastern Cape Province considered representative of South Africa, and involved quantitative and qualitative methodologies directed at architectural designers registered with the South African Council for the Architectural Profession (SACAP). These served to provide local insight and a line of structured questioning for use in the main study, which was positioned in the action research (AR) paradigm and used focus-group (FG) methodology to solicit vast qualitative data from SACAP-registered participants. Synthesis of the FG data with literature and the provisional studies gave rise to a provisional model comprising six main model components and a range of subcomponents. The provisional model was validated and refined. The evolved model includes a core model embedded in a greater process model, and implementation and use of the core model relies on appropriate knowledge of architectural designers. It is recommended that tertiary architectural education institutions and those involved in architectural CPD programmes take ‘upstream design ownership’ and use the model as a basis for designing and implementing appropriate education and training programmes.
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    The use of the critical path and critical chain methods in the South African construction industry
    (University of the Free State, 2015) Deacon, Henry; Van der Lingen, Elma
    English: The purpose of this article is to report on an investigation of the use of critical path and critical chain methods in the South African construction industry. Through a questionnaire survey, data was collected to establish which construction sectors apply these methods, the percentage of construction professionals using these methods, the reasons why these methods are applied, and the factors that influence the use of these methods. Based on the findings, the critical path and critical chain methods are mostly used in the South African construction industry by the building sector, in comparison to the civil and industrial sectors. The critical path method is used more than the critical chain method, with over 70% of the responding companies applying the critical path method and only 22% applying the critical chain method. The latter method is considered to be a relatively new project management tool and requires a culture change in the company. Users of the critical path method believe that the method mainly improves their project understanding, planning, scheduling and control, with all these improvements ultimately leading to better on-time completion of projects and cost saving.