CPM does not obey any of the four production laws. Little's Law says throughput time equals flow units times cycle time. CPM does not allow calculating optimal batch sizes. CPM does not help reduce work in process. CPM does not enable finishing as you go. The Bottleneck Law says every system has at least one constraint. CPM cannot see bottlenecks because you cannot see trade flow. The Law of Variation says as variation increases, duration increases. CPM is so chaotic it takes all management capacity just to update the schedule. Kingman's Formula calculates waiting time. CPM has no buffer strategy. Takt obeys all four production laws. Weak leaders and non-accountable trades will not like Takt because it requires holding the line and keeping rhythm.
What you'll learn in this episode:
- How Little's Law in Takt translates to: number of takt wagons plus number of takt areas minus one, multiplied by takt time equals duration
- The FOCCCCUS bottleneck strategy: Find, Optimize, Coordinate, Collaborate, Curate, Upgrade, Start again
- Why Takt takes one-twelfth the time to manage, freeing 55 percent of time from schedule management to roadblock removal
- How to level trades using throughput times: if electrician takes 100 days and others take 50, add a second crew to match the rhythm
- Why we focus on throughput and collective efficiency for all trades, not individual contractor efficiency
We want everyone to succeed together as a group and optimize the project, not just individual companies.
the Elevate Construction podcast, I'd appreciate you telling a friend (Maybe even two 馃槉).
Also, here are links to our YouTube Channels:
路 Jason Schroeder YouTube Channel: https://www.youtube.com/channel/UC4xpRYvrW5Op5Ckxs4vDGDg
路 LeanTakt YouTube Channel: https://www.youtube.com/c/leanTakt
路 LeanSuper YouTube Channel: https://www.youtube.com/channel/UCzQDevqQP19L4LePuqma3Fg/featured
路 LeanSurvey YouTube Channel: https://www.youtube.com/channel/UC-Ztn3okFhyB_3p5nmMKnsw
