Lean construction aims to reduce waste and improve productivity in the construction industry. It targets seven types of waste including defects, overproduction, and unnecessary transportation. Lean construction attacks waste through three angles: project delivery, organization, and integrated project delivery. Some benefits of lean construction include reduced costs, improved schedule reliability, and increased productivity and profits. However, there are also some drawbacks such as getting all employees onboard with changes, the time needed for training, and the risk of breakdowns in the new systems. Lean construction emphasizes eliminating waste to deliver more value to customers.

1. LEAN CONSTRUCTION
Project Management
CVEN 5320
05/09/2019
Submitted By:
Suman Luitel
Sushanta Shrestha
Md Masharul Kabir
Saroj Parajuli
Birat Dhakal

4. Why do we need a differentApproach?
• The construction industry has
fallen behind other industries
for productivityimprovement.
• Leantarget the Removalof
behaviors and activities that
contribute to Wasteand lossof
productivity.
• Leanconstruction bringsthe
needed methodologies and
culture for improvement.

5. Value is defined by theCostumer

6. Seven types ofwaste
-Defects/Rework; scrapand fixing errors
-Overproduction; making more than just incase
-Inventory/Queue; Excessivework in processinventory
-Over-Processing; Beyond what costumerneed
-Motion; unnecessary and awkward movement
-Transport; unnecessary material movement
-Waiting; Delayfor upstream activity tocomplete

8. Lean Attacks Waste on 3Angles
Project
Delivery
Organization
Integrated Project Delivery
Practical application of LeanConstruction towards integrated project delivery

9. Information is often missed in thehandoffs

10. Typical informationflow

11. Integratedproject

13. Lean Termsaredifferent

14. Benefits
• lesswaste cangreatly reduce all aroundcosts
• Construction time cangreatly be reduced by increased planningand
strategic vision.
• Fewer accidents and ahigher rate of safety through increasedworker
focus and understanding.
• Increased schedule reliability andpredictability.
• Improved overall results due to increased communication andfewer
workers.
• Decreasedstress for management due to fewerworkers.
• Increased productivity all around due to ahigher rate of planning.
• Increased profits and turnovers, with increased customersatisfaction.
• Increased worker accountability.
• Increased job satisfaction resulting in more performancecommitment

16. Drawbacks
• All areasof management, along with the workers, haveto be in
accordancewith the plan. If there is a break in the chain, the lean
methodology cannotwork.
• Getting everyone onboard with anew production method isn’teasy,and
somepeople may be ambivalent aboutchange.
• In order for successfulimplementation, management officials must be
able to guide employees directly and efficiently. In essence,the lean
method of operation is derived by how well amanagement official can
work with his employees more so than with the standard procedure, and
personality clashes,aswell asother issuesmay arise.
• Training and educating employees in the lean method takestime and
dedication, and asexpressedearlier, someworkers maynot like or deal
well with change.

17. DrawbackContinue
• Staying on course with anew systemof operation canbe difficult forsome
managers, and somemay grow frustrated.
• Cohesive teamwork is essential for lean production. Eachworker has to be
well versed in his position or a breakdown will occur as all workers rely on
one another.
• Training employees with anew systemcantake sometime, and thiscould
decrease the overall time on aproject ordesign.
• Management has to be astute to all production issues as a breakdown in
the system can easily occur. Staying alert to the change in operations can
be hard for allemployees.
• Suppliers and distributors have to be notified of the changein production,
and this could causeproblems.
• Atemporary decrease in employee morale might be noticed due tothe
changein policy.

19. References
• http://www.buildingsguide.com/blog/introduction-lean-construction
• https://www.academia.edu/8852339/Advantages_and_disadvantages_of_
traditional_and_lean_method
• https://www.youtube.com/watch?v=x0-9nlg-FDY
• https://en.wikipedia.org/wiki/Lean_construction
• www.leanconstruction.org