dc.description.abstract |
The idea of lean thinking in construction project is to minimize waste, improve
communication among the stakeholders and encourage teamwork as well as
integration through a common set of tools and techniques. The current practice
observed in Ethiopia building construction is the common or the traditional one;
which make the industry non-productive and the improvement for increase
productivity is static parallel to other industry. Even though there are many research
studies that deal about cause and minimization of material wastage in Ethiopia and
abroad, there is a gap in cause, effect and minimization measures of physical and nonphysical waste by using modern construction approach, such as lean technique. The
objectives of this paper is to assess building construction project waste, how lean
construction techniques reduce those waste and improve performance in building
construction project by providing a new knowledge on the current situation and
determine the implementation barrier for lean construction approach in Ethiopia
specially in Bahir Dar. The paper focus on lean construction techniques to overcome
problems, facilitate project progress, and offer recommendations for better public
construction project processes. The thesis will determine a cause, identifies and
categorizes the waste, and take remedial actions through application of appropriate
lean techniques and focus on investigating implementation barrier of lean
construction approach. To address successful implementation of Lean approach
qualitative research method were applied and perception of adopting new
philosophies like Lean approach were analysed, cause of waste were categorized by
controllable cause associated with flow, management activity, change or conversion
and uncontrollable or external causes, whereas wastes also categorized based on the
judgment of the construction professionals’ experience. Lean related tools that are
used to reduce waste and improve performance of project also assessed their
application for different projects. The results from questionnaire survey were
correlated and discussed with the data gathered qualitatively. Proposed simple
conceptual framework for implementing Lean construction approach also
incorporated in this thesis. Finally, conclusion and recommendation were drawn
based on collected and analysed data on waste and its reduction way through lean
approach.
Key words: Wastage, Lean construction, Level of knowledge |
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