Lean thinking concept was earlier recognized in the 1980s when the American car manufacturing industries realized that Japanese industries have been producing cars at a much cheaper cost with better quality. This realization was a result of Kiichiro Toyoda, Taiichi Ohno, and others revisiting the production system of Ford and thus inventing Toyota Production System. Lean manufacturing concept was presented by (Womack, Jones, and Roos 1992) Womack et al. in 1992. This Lean concept mainly aimed at reducing wastes of all forms recognized namely defects, waiting, over-production, rework, motion, processing, inventory and transport. This would in turn reduce process cycles, provide a superior quality with utmost possible efficiency.
Lean construction emerged due to the failure of traditional construction practices and processes in terms of their improper management and delivery of key project results (Koskela and Howell 2002). Though the term ‘Lean’ was originated from the Japanese car manufacturing industries, it was further modified and made suitable for its use in highly unorganized construction industry. The principles were the same: reducing all kinds of waste and producing utmost value to the stakeholders. The Lean Project Delivery System (LPDS) and the Last Planner System of production control were developed by Lean Construction Institute (LCI) where the principles adopted in the manufacturing industry were then applied to the construction industry.
The term Sustainability is much talked about now a days because of the unhealthy environment faced by all of the community and sectors but on the other hand, it is least understood as it is usually subjected to different interpretations. The construction sec...
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...e Sustainable construction principles VI. What is actually meant by sustainability?
VII. How does construction achieve the sustainability principles?
4. Break down the pillars of sustainability into recordable indicators VIII. What are the pillars of sustainability?
IX. What comes under each sustainability pillar?
5. Finding out the sustainable benefits achieved through different Lean construction techniques X. Is there any sustainable benefit achieved in the lean case studies?
6. Establishing an interrelationship matrix between Lean and Sustainability XI. How well does the benefits achieved in lean match with the detailed pillars of sustainability?
XII. What are the criteria that lean fail to cover sustainability?
7. Validate the developed matrix with domain experts XIII. Does this interrelationship agree to the opinions of lean champions and sustainability experts?
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