proper integration of lean construction with the … · last planner master schedule – cpm level...

PROPER INTEGRATION OF LEAN CONSTRUCTION WITH

THE CPM SCHEDULECharles V. Choyce, Jr., MRICS,CM-LEAN, PSP, PMP, CFCC

Managing Director, BRG

Robert Lamb, PSP, LEED APSenior Managing Consultant, BRG

Benjamin Crosby, CM-LEAN, CM-BIM, CCM Director, Virtual Design & Construction, The Yates Companies

Mason Statham, CM-LEAN, LEED APDirector of LEAN/Sustainability, The Yates Companies

Advantages of LEAN ConstructionAdvantages of LEAN Construction

1. Designed to minimize costs by improving efficiency of construction.

2.

Based on “pull”

planning –

a plan to achieve a reliable production workflow.

3.

Contrast with “push”

planning –

pushing work into a plan based on predetermined completion date.

Advantages of LEAN ConstructionAdvantages of LEAN Construction

Potential Conflict Between LEAN and CPM SchedulingPotential Conflict Between LEAN and CPM Scheduling

“In push planning, work is pushed into production

based on predetermined completion dates, regardless of whether workers are ready to start production of the work…There is no mystery about when the project needs to be done – it should be completed when the owner wants it and by contract –

workers have to figure out how to make it happen by the specified date.”Associated General Contractors of America, LEAN Construction Education Program, Vol. III “LEAN Restructuring”, p. 1-2 (2012)

Potential Conflict Between LEAN and CPM SchedulingPotential Conflict Between LEAN and CPM Scheduling

“Unlike push planning, pull planning depends on an understanding of the level of readiness of a project’s downstream activities…A true pull planning system introduces additional workload to the production process only when that work can be properly performed , which in turn releases work to other downstream activities.”Associated General Contractors of America, LEAN Construction Education Program, Vol. III “LEAN Restructuring”, p. 1-3 (2012)

Scheduling with LEAN in MindScheduling with LEAN in Mind

HOW TO PREPARE CPM USING TO WORK WITH LEAN

CONCEPTS

Scheduling with LEAN in Mind – Level 2Scheduling with LEAN in Mind – Level 2

Scheduling with LEAN in Mind – Level 3Scheduling with LEAN in Mind – Level 3

LEVEL 3 LEAN LAST PLANNER SCHEDULE – 2,991 ACTIVITIES

LEVEL 4 LAST PLANNER CPM - 3000+ ACTIVITIESLEVEL 4 LAST PLANNER CPM - 3000+ ACTIVITIES

REAL LIFE APPLICATION OF LEAN PLANNING –

PROJECT THOR

Level 3 CPM - 2 4DLast Planner Master Sched.

Level 4 Schedule DevelopmentLevel 4 Schedule Development

LEVEL 4 LAST PLANNER CPM - 3000+ ACTIVITIESLEVEL 4 LAST PLANNER CPM - 3000+ ACTIVITIES

Level 4 CPM - 2 4DPhase Sched.

Last Planner Implementation

Last Planner Weekly Work PlanLast Planner Weekly Work Plan

Last Planner Daily HuddlesLast Planner Daily Huddles

Last Planner – CPM Level 3-5. Push and Pull!!

Last Planner Daily Huddles – CPM Level 5 – Field

Should Do!

Can Do!

ROLLING 6 WEEK LOOK – PRODUCTIVITY CHARTS

DAILY LOOK / PPC

Last Planner Master Schedule – CPM Level 3 - Office – Buy out Buy in

Created by GC – general plan – many assumptions – initial approach – 4D!

Productivity used for durations – Logic Refined – Align SOV and CPM – Erection Plans – 4D!

Last Planner Phase Schedule – CPM Level 4 – Offices – Each Trade Buy In

Last Planner 6 Week look/Make Ready – CPM Level 4 – Jobsite

Jobsite specific feedback – Productivity refinedLast Planner Weekly Work Planning – CPM Level 5 – Jobsite

GC/CM

PMs/Supers Trades, Vendors

Trades Supers

Area Foremen

Area Foremen

P6 Synchro

P6 Synchro

Jobsite Wall

Jobsite Wall

Area Reports

SIGNED BASELINE / CONTROLS

WORKING SCHEDULE / COORDINATED PLAN

1 WEEK LOOK / PPC

Must Do!

Will Do!

Pull Sessions (as Desired)

Doing /Did!

Push and PullPush and Pull

Push

Use CPM to keep the project moving

forward.


Pull

Use Last Planner to pick up time as you

go.


Push Pull

proper integration of lean construction with the … · last planner master schedule – cpm level...

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