Lean Principle - Value Stream

A contractor’s value stream is every step required to take raw materials and information then deliver a completed project to the waiting hands of a customer.

D. Brown Management Profile Picture
Share

A deep understanding of this value stream at various levels of detail down to actual installation steps is the foundation upon which major productivity improvements can be made.  

Field Productivity: Lean Principle - Value Stream.

As an example consider every step required to put lighting in a conference room - these are just the highlights:  

  • Initial design requirements
  • Quotes from distributor for estimating
  • Submittals and approvals
  • Ordering, tracking and receiving
  • Moving around jobsite to work area
  • Installation
  • Inspection
  • Training of the customer
  • Punch list

This is the highest level and if you mapped out each of those in another 5-25 steps you would start to see a clear picture of what it really takes to install a light fixture in a conference room.  

Start at the highest level - what can be cut out, reduced or sequenced differently?  

Look at the details - can you use 2 screws instead of 4?  50% cost savings at that step! 

Remember that the customer just wants light - could a skylight or more windows reduce the lighting need at the design stage?  


Labor Productivity Workshop


Lean Principle - Value Stream
Field labor is the often the biggest variable on a construction project - making it the biggest risk and opportunity....

Lean Principle - Value Stream
Field labor is the often the biggest variable on a construction project - making it the biggest risk and opportunity....

Impacted Productivity - Fighting Back
Fighting back effectively against labor productivity impacts will significantly improve project outcomes including customer satisfaction if handled properly. There are four interrelated aspects to effectively fighting back.
Time-on-Tools and Minimum Required Installation
Labor productivity IS NOT the biggest problem with field productivity. Under similar conditions the variation in how fast two crafts people actually “turn wrenches” is about 2X but there are far bigger problems to tackle. Focus on these three areas.
Lean Principle - Observation (Gemba Walks and Learning to See)
One of the most important tools for improving productivity is going to the jobsite or work area and observing for an extended period of time with the intent to understand but not to immediately interact. Observation progresses through about 7 stages.