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Alignment of CPM Scheduling and Short Interval Planning

OCTOBER 18, 2017

Scott Kelly, Walt Disney Imagineering

Jeff Betts, Whiting-Turner Contracting Co.

Don Rote, Building Point Pacific

Steven Solloway, Whiting-Turner Contracting Co.

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Evolution of Planning Over a Career

2

Mobilization Dur Start complete 27 28 29 30 31 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Move on Temp Const Office Trailers x

Temp Const Office - Furniture x

Temp Const Office - Equipment x

Temp Const Office - Phone x x

Temp Const Office - Power x x x x x x x x

Temp Const Office - DSL x x x x x x x x x x x

Fencing at Bld. C & Cov'd Walk x

Fencing at Onsite Laydown Area x

Subcontractor Safety Orientation /

Planning Meeting x

Building C Phase 1

Safe / Disconnect Elec, Gas, HVAC,

Plumbing, Alarm x

Electrical Demo x x x x x x

Plumbing Demo & Cut-N-Cap x x x

HVAC Demo & Cut-N-Cap x x x x x

Phase 1 Soft Demo x x x x x x x

Phase 1 Hard Demo x x x x x x x

Layout Mech Roof Op.s to identify dimensions for ordering of pre-fab curb Pending Response to RFI

Elec/HVAC/Plumbing/Framer Coord Mt x

Electrical Rough x x x x x x

HVAC Rough x x x x x

Phase 3 Work

Utility Markout for New HC Ramp x

Barricade Work Area at New HC Ramp x x

Demo for New Ramp x x x

Layout & Excavate Footings New Ramp x x x

Footing Templates x

Footing Reinforcing

Elementary School Modernization- 2 Week Look Ahead 02/04/03

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Planning Successes and Lessons Learned

3

• Community College Theater and Art Center• Four-building summer sprint ($8M)

• CPM required by Specifications

• (+) Pull planning new but rapidly embraced

• (+) Daily coordination accomplished by pull planning

• Five rows of planning boards

• (-) Difficulty developing TIA without CPM

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Planning Successes and Lessons Learned

4

• Power Plant

• Multi Year Risk Project ($BBs)

• (+)Required robust Critical & Near Critical

Path Analyses

• (+) Evaluation of Required Schedule

Contingencies

• (+) Establishing In Field Need Dates for

Long Lead Equipment

• (+) Resource analysis of critical craft labor

• (-) Limited insight into near term discrete

activities and / or constraints

• (-) Limited communication & buy-in of near

term plans & activities

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Planning Successes and Lessons Learned

5

Last Planner System®

• Field-use look-ahead

• Simple spreadsheet

• “The REAL schedule”

CPM Schedule

• Office use contractual tool

• CPM software

• “The billing schedule”

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6

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Important Questions and How to Answer Them

7

• What is the longest path to operation of the Gamma Ray?

• What constraints are there to getting the plasma vault dried in by next Friday?

• What is the late date to order the cyborg’s holoprojector?

• What is the turnover date of Lieutenant Raffi’s transport shuttle landing pad?

• What day will humanoid robot’s chest plate be welded to his rib supports?

• Will we delay completion of the Space Sasquatch’s village if we only mobilize one

rope bridge crew?

• How many crews will be working in the Little Green Men’s palace on second shift

this weekend?

• Are there any impacts to the pour date of the Warlocks’s hut foundation if we need to

remove and replace the tree branch elements?

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Important Questions and How to Answer Them

8

• What is the longest path to operation of the Gamma Ray?

• What constraints are there to getting the plasma vault dried in by next Friday?

• What is the late date to order the cyborg’s holoprojector?

• What is the turnover date of Lieutenant Raffi’s transport shuttle landing pad?

• What day will humanoid robot’s chest plate be welded to his rib supports?

• Will we delay completion of the Space Sasquatch’s village if we only mobilize one

rope bridge crew?

• How many crews will be working in the Little Green Men’s palace on second shift

this weekend?

• Are there any impacts to the pour date of the Warlocks’s hut foundation if we need to

remove and replace the tree branch elements?Some questions are best answered by the short interval plan…

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Important Questions and How to Answer Them

9

• What is the longest path to operation of the Gamma Ray?

• What constraints are there to getting the plasma vault dried in by next Friday?

• What is the late date to order the cyborg’s holoprojector?

• What is the turnover date of Lieutenant Raffi’s transport shuttle landing pad?

• What day will humanoid robot’s chest plate be welded to his rib supports?

• Will we delay completion of the Space Sasquatch’s village if we only mobilize one

rope bridge crew?

• How many crews will be working in the Little Green Men’s palace on second shift

this weekend?

• Are there any impacts to the pour date of the Warlocks’s hut foundation if we need to

remove and replace the tree branch elements?…and some by the Critical Path Method schedule.

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Strengths and Weaknesses of the Systems

10

PROS CONS PROS CONS

CRITICAL PATH METHOD SCHEDULING (CPM) LAST PLANNER SYSTEM® (LPS)

Logic Driven Lacks Details Daily Detail Lacks Logic

Big Picture Not Collaborative Group Effort Micro View

Critical Path Accountability Ownership Highly Detailed

Logic Driven

Big Picture

Critical Path

Daily Detail

Group Effort

Ownership

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Creating the Integrated Process

11

• Big Hairy Audacious Goals

• Defining the ideal

• Setting ground rules

• Communicating to the larger team

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The Integrated Process Defined

12

• Development using both tools

• First pass (CPM)

• Trade informed (CPM)

• Phase planned (short interval)

• Pull planned (short interval)

• Actualized (both)

• Refinement and addition of detail

• Stickies

• Sandbox schedule

• Active schedule

• Current published

CPM

LPS

0

10

20

30

40

50

60

70

80

90

100

80

60

40

10 10 10

10

20

30

40

2010

1020

30

50

7080

Schedule Development Over Time

Initial Schedule Trade Partner Input Pull Planned

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Weekly Meeting Cycle

13

Monday

• Daily Check-in

Tuesday

• Daily Check-in

• Phase Plan

Wednesday

• Daily Check-in

Thursday

• Daily Check-in

• Weekly 6-week Plan

Friday

• Daily Check-in

• CPM & WWP Sync

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Integration with Other Processes

14

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Challenges

15

• Change!

• Integration of Varied Stakeholder Experience

• Software limitations

• Complexity of Project

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Successes

16

• Current Construction PPC: 82

• Communication to a diverse audience

• Transparency and trust

• Early warning system

• Smaller project staff

• Integration of many disciplines in schedule

• Smooth integration of phase plans into CPM

• Happy customer!

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Looking Forward

17

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