Planning Approaches Richard Castaneda Senior Project Scheduler - - PowerPoint PPT Presentation

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Planning Approaches Richard Castaneda Senior Project Scheduler - - PowerPoint PPT Presentation

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Integration of Multiple Planning Approaches Richard Castaneda Senior Project Scheduler Kenneth McBroom, PSP Director Planning and Scheduling 16 th LCI Congress | San Francisco, CA | October 7-10, 2014 Questions How does a Large

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16th LCI Congress | San Francisco, CA | October 7-10, 2014

Integration of Multiple Planning Approaches

Richard Castaneda Senior Project Scheduler Kenneth McBroom, PSP Director Planning and Scheduling

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16th LCI Congress | San Francisco, CA | October 7-10, 2014

Questions

  • How does a Large Construction Project Integrate Various and Very Different

Scheduling Approaches?

  • What if that project is a 100% Design / Build Project?
  • And it is Hospital?
  • On an Existing Fully Functioning Hospital Campus?
  • In California under the Authority of ?
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16th LCI Congress | San Francisco, CA | October 7-10, 2014

Prior to NWT Construction

North West Tower – Project Background

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16th LCI Congress | San Francisco, CA | October 7-10, 2014

North West Tower – Project Background

Prior to NWT Construction

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Schedule Data

  • Jan 2011 – Site Make Ready

North West Tower – Project Background

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16th LCI Congress | San Francisco, CA | October 7-10, 2014

Schedule Data

  • August 2011 – Demo of (e) Parking Garage

North West Tower – Project Background

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Schedule Data

  • May 2012 – Structural Steel for NWT

North West Tower – Project Background

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16th LCI Congress | San Francisco, CA | October 7-10, 2014

Schedule Data

  • August 2014 – Original Contract Completion

North West Tower – Project Background

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16th LCI Congress | San Francisco, CA | October 7-10, 2014

CPM – the What

  • Required by Contract; Used to Determine Key Milestone Dates
  • Approximately 6500 Activities
  • Resource Loaded
  • Not Cost Loaded
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16th LCI Congress | San Francisco, CA | October 7-10, 2014

Location Based Scheduling (LBS) – the Where

  • VICO was required by Contract
  • BIM Software
  • Utilizes Location Based

Scheduling

  • Utilizes 3D Model (DWG, SKP,

DWF)

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16th LCI Congress | San Francisco, CA | October 7-10, 2014

LBS Process Overview: Step 1

Location Breakdown Structure

Break the Project into Locations

  • Levels 1,2,4,5
  • West & East or

North & South ?

Location Based Scheduling

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16th LCI Congress | San Francisco, CA | October 7-10, 2014

LBS Process Overview: Step 2

Create Tasks that matched the CPM but based on Location

Location Based Scheduling

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Location (Floors) 5 10 15 20 25 30 35 Weeks 1st 2nd 3rd 4th 5th 6th

15 22 29 5 12 19 26 3 10 17 24 31 7 14 21 28 5 12 19 26 2 9 16 23 30 6 13 20 27 5 12 19 26 2 9 16 23 30 7 14 AUG SEP OCT NOV DEC JAN FEB MAR APR MAY 2011 2012

Continuous flow

  • Activities continuous

but start later

Start later when work can proceed continuously

Location Based Scheduling

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Location (Floors) Weeks

15 22 29 5 12 19 26 3 10 17 24 31 7 14 21 28 5 12 19 26 2 9 16 23 30 6 13 20 27 5 12 19 26 2 9 16 23 30 7 14 AUG SEP OCT NOV DEC JAN FEB MAR APR MAY 2011 2012

  • OH MEP
  • OH MEP
  • OH MEP
  • OH MEP
  • OH MEP
  • OH MEP

Task: Activities

Crew Flow

Flowline: graphical representation of movement of crews

  • ver time

3 weeks

1st 2nd 3rd 4th 5th 6th

5 10 15 20 25 30 35

Location Based Scheduling

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LBS Process Overview: Step 3

3D Based Quantities

Assign Quantities to the task from the Model

Location Based Scheduling

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LBS Process Overview: Step 4

Input the Production Rates and Crew Sizes for all the trades to Determine Durations

Location Based Scheduling

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Aligning the CPM Schedule in LBMS

2,432 Activities Converted into 372 Tasks

Location Based Scheduling

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Location Based Scheduling

Trade Stacking No Work Occurring

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Optimization

  • Used LBS to produce an Optimized Work flow for all trades
  • Had to revise the Baseline to Match the Dates in LBS
  • Tolerance = +/- 2 days

Location Based Scheduling

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Production Control – Weekly Updating

Location Based Scheduling

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  • Completion Report
  • Review Target Production & Actual Production

Location Based Scheduling Weekly - Input Quantity put in place

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Location Based Scheduling

Late start Complete Behind On-time

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Location Based Scheduling

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Control Action Plan (Note for Every Alarm)

Location Based Scheduling

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Pull Planning – the How

Last Planner System

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Last Planner System

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4D Scheduling – what it will look like

  • Utilizes CPM Scheduling
  • Compatible w/ Primavera P6
  • Utilizes 3D Model (DGN, DWG, SKP, DWF)
  • Creates 4D Animation
  • Show the status of the Project at any point in time

4D Scheduling

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4D Scheduling

CPM

LBS

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4D Development

  • Import Schedule & Model
  • Link Task with 3D Elements

4D Scheduling

  • Add Equipment
  • Generate 4D Animation
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Safety

4D Scheduling

  • Identify current site conditions
  • Identify high risk area (Path of travel for concrete trucks)
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4D Scheduling

Safety

  • Identify crane set-up / location
  • Identify danger area (Swing

Radius)

  • Blind Spots Created by the

Construction

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How does Link Piping (Piping from CUP to Tower) affect Deck Pours?

4D Scheduling

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4D Scheduling

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4D Scheduling

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  • Displays conflict with original logic
  • Avoided schedule & cost impacts (Approx. $105,000)

4D Scheduling

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  • Displays work that is complicated to describe in the schedule
  • Avoids confusion

4D Scheduling

Improved Communication

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  • Closed temp road

and opening of a new access road

  • Identified Potential

Problem with U/G Plumbing Pipe Delivery

4D Scheduling

Improved Communication

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  • Displays work to be performed
  • Displays equipment outside construction area
  • Identifies traffic control personal

4D Scheduling

Improved Communication – Owner (Disruption Notices)

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4D Scheduling

Improved Communication – Owner (Schedule Progress)

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North West Tower – Project Completion

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North West Tower – Project Background

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North West Tower – Project Completion

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North West Tower – Project Completion

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North West Tower – Project Completion

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North West Tower – Project Completion

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Integration

CPM – WHAT LBS – WHERE Pull Planning – HOW 4D – WHAT/WHEN

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CPM – P6 Schedule

CPM-the WHAT

Typically created in Push manner Provides planned work breakdown structure, with key milestones Created early in process

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CPM – P6 Schedule

LBS-the WHERE

Helped Create a Better Master Plan Identified in P6 where Remaining Durations should be Modified to account for real world production Provides “should start” dates rather than CPM early start or late start dates Ensures continuous work between locations Identified bottle necks & inefficiencies

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CPM – P6 Schedule Pull Planning Used CPM Milestones to Create 3 to 6 Week Detailed Schedules Actuals in P6 would Reflect the Promises Kept by the Trades Communication – Trades; Last Planners of the Work Flushed Out Field Conflicts and Issues Prior to starting the work Create Daily Measurable Detailed Tasks and then held the Trades accountable

PULL – the HOW

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CPM – P6 Schedule P6 Schedule Imported to Create 3D Project Animation 3D conflicts led to Logic changes in the CPM Communication – Master Plan with the Hospital and Trades

4D – the WHAT / WHEN

Displayed actual field conditions for better planning Allowed for what-if scenarios

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= 4 Months Ahead of Schedule; April 1, 2014

Pull Planning CPM – P6 Schedule

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Resources

Ken McBroom, PSP Director Planning & Scheduling McCarthy Building Companies, Inc. Southern California Division kmcbroom@mccarthy.com Richard Castaneda

  • Sr. Project Scheduler

McCarthy Building Companies, Inc. rcastaneda@mccarthy.com