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LEAPCON. Lean Apartment Construction Workshop. Apartment Construction. Ceilings. HVAC. Drywall. Flooring. Design Changes. Simulation setup. 29. 25. 21. 13. 9. 5. 17. 1. 14. 10. 22. 18. 6. 30. 2. 26. 8. 7. 6. 4. 5. 3. 1. 2. 27. 19. 11. 3. 31. 7. 23. 15. 12.
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LEAPCON Lean Apartment Construction Workshop
Apartment Construction Ceilings HVAC Drywall Flooring Design Changes
Simulation setup 29 25 21 13 9 5 17 1 14 10 22 18 6 30 2 26 8 7 6 4 5 3 1 2 27 19 11 3 31 7 23 15 12 24 8 28 20 16 32 4 Drywall team Flooring team Ceiling team HVAC team Material Store Building floors and apartments Crane Client Rep Quality Control Project Manager Design Changes Client Changes Rep Client
Discussion between rounds:Difficulties with the system • Management Team: • What did you feel during the game? Were you busy? • Did you manage to implement your plan? Were you in control? • Drywall team: • Were you busy? • HVAC team • Were you busy? • Bottleneck, Cycle time, WIP, Push • What is the meaning of cycle time for apartment construction in real projects? • How would you improve the process?
Discussion after the second round • Management Team: • What did you feel during the game? Were you busy? • Did you manage to implement your plan? Were you in control? • Drywall team: • Were you busy? Was your productivity improved? • HVAC team • Were you busy? Was your productivity improved? • Bottleneck, Cycle time, WIP, Push • What is the meaning of cycle time for apartment construction in real projects? • How would you improve the process?
LEAPCON - Cash Flows $20,000 F: Lean $15,000 $10,000 F': Lean, no customization $5,000 Cash Flow $0 $(5,000) A': Conventional, no customization $(10,000) A: Conventional $(15,000) $(20,000) 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 24.00 Simulation Time(min.sec) LEAPCON Simulation www.technion.ac.il/~cvsacks/tech-leap.htm
Background Reading “The Goal” Eli Goldratt www.leanconstruction.org “Lean Thinking” Womack and Jones www.iglc.net “The Critical Chain” Eli Goldratt “Factory Physics” Hopp and Spearman Sacks, R., Esquenazi, A., and Goldin, M., (2007). ‘LEAPCON: Simulation of Lean Construction of High-rise Apartment Buildings’, Journal of Construction Engineering and Management, Vol. 133 No. 7 pp. 529-539.