Application of Value Engineering – The Crosstown Project
Presented To: CSVA Conference, Toronto November 15, 2011
Presented by: Rick Thompson, Chief Project Manager – SRT/Yards Agenda
1. Eglinton Scarborough Crosstown Overview
2. Value Engineering for the Crosstown Project
3. Examples of VE Workshops (i) SRT Conversion (ii) Station Box Length (iii) Tunnel Design
4. Questions
Application of VE - The Crosstown Project 11/18/2011 2 Agenda Agenda
1. Eglinton Scarborough Crosstown Overview
Application of VE - The Crosstown Project 11/18/2011 3 Agenda Eglinton-Scarborough Crosstown
Application of Value Engineering 11/15/2011 4 1 - The Crosstown Project Eglinton Corridor
Application of Value Engineering 11/15/2011 5 1 - The Crosstown Project SRT
Application of Value Engineering 11/15/2011 6 1 - The Crosstown Project Maintenance and Storage Facilities (MSFs)
Application of Value Engineering 11/15/2011 7 1 - The Crosstown Project Eglinton-Scarborough Crosstown
• Funded by the Province through Metrolinx - $8.4 Billion
• TTC responsible for delivery of the project, on behalf of Metrolinx
• Support future growth across the City
• Provide connections to the TTC subway and GO Transit
• Implement PRESTO transit fare card
Application of Value Engineering 11/15/2011 8 1 - The Crosstown Project Eglinton-Scarborough Crosstown
Key facts: • 25 km east-west corridor between Scarborough Centre and Jane Street / Black Creek • 19 km underground tunnel (Jane/Black Creek to Kennedy) • 6km through-running service along upgraded SRT to Scarborough Centre • Up to 26 stations • 3 interchanges with subway • Two Maintenance and Storage Facilities (MSF)
Application of Value Engineering 11/15/2011 9 1 - The Crosstown Project Light Rail Vehicles
Application of Value Engineering 11/15/2011 10 1 - The Crosstown Project Light Rail Vehicles
Bombardier Awarded Contract in June 2010
New LRV features: • Low floor and accessible • Audio and visual passenger information • Enhanced noise and vibration mitigation • 31m long • Will operate in 3 car consist
Application of Value Engineering 11/15/2011 11 1 - The Crosstown Project Potential Interior Layout
Application of Value Engineering 11/15/2011 12 1 - The Crosstown Project Goals
• Deliver quality product
• Deliver accessible product
• Minimize property and construction impacts
• Minimize disruption to extensive utilities around stations
• Accommodate local traffic during construction
Application of Value Engineering 11/15/2011 13 1 - The Crosstown Project Project Implementation
• SRT – Kennedy to McCowan – 2019
• Eglinton – Keele to Kennedy – target 2020
Application of Value Engineering 11/15/2011 14 1 - The Crosstown Project Project Status - Design
– Nov. 2011 – Tunnels – Keele to Laird – 90% – Dec. 2011 – SRT Conversion – 30% – Dec. 2011 – SRT Kennedy Station – 10% – Early 2012 – Stations – Keele to Chaplin – 10%
Application of Value Engineering 11/15/2011 15 1 - The Crosstown Project Project Status - Construction
• Jul. 2011 – West Launch Shaft @ Black Creek
• Summer 2012 – Tunnelling starts (west to east)
• 2014 – Eglinton Stations Start
• 2013/2014 – Advanced SRT construction
• Sep. 2015 – SRT shut down
• Sep. 2015 - – McCowan Maintenance & Storage Facility.
Application of Value Engineering 11/15/2011 16 1 - The Crosstown Project Agenda
1. Eglinton Scarborough Crosstown Overview
2. Value Engineering for the Crosstown Project
Application of VE - The Crosstown Project 11/18/2011 17 Agenda VE Objective
Best value at lowest cost.
Application of VE 11/15/2011 18 2-Value Engineering for the Crosstown Project VE Objective
In achieving best value at lowest cost, must: • Provide safe operation • Adhere to design requirements • Provide low life-cycle cost • Provide high performance -reliability - availability - maintainability • Be functional and aesthetically pleasing for customers.
Application of VE 11/15/2011 19 2-Value Engineering for the Crosstown Project What is Value?
Value Engineering
– Traditionally perceived as a means to reduce costs. – Can also be applied to improve performance. – Measures to determine performance are specific to each VE
Application of VE 11/15/2011 20 2-Value Engineering for the Crosstown Project How Achieve Objectives?
Creative
The☺ Box
Application of VE 11/15/2011 21 2-Value Engineering for the Crosstown Project How Achieve Objectives?
Creative Pre-Judge ☺ ☺
Defensive “No” “No”
Application of VE 11/15/2011 22 2-Value Engineering for the Crosstown Project How Achieve Objectives?
• Instil VE as a culture
• Promote creativity and an open-minded approach
• Optimize designs to deliver maximum value at the lowest achievable life-cycle cost
• Perform VE early to achieve greatest benefit
Application of VE 11/15/2011 23 2-Value Engineering for the Crosstown Project VE Benefits
• Encourages design creativity
• Builds confidence within project teams
• Provides a mechanism to deliver optimum value and quality service
• Provides confidence to funding partners.
Application of VE 11/15/2011 24 2-Value Engineering for the Crosstown Project 3 Types of VE
• Mainstream
• Formal
• Construction
Application of VE 11/15/2011 25 2-Value Engineering for the Crosstown Project 3 Types of VE - Continued
Mainstream VE:
• Every day decisions throughout the design process
• Good engineering practice
• Request design variances
• Innovative design
Application of VE 11/15/2011 26 2-Value Engineering for the Crosstown Project 3 Types of VE - Continued Formal VE: • 3 VE Consultants retained • VE Consultant retains appropriate specialists • Perform at or before 30% design • 10% - evaluate options • 30% - evaluate selected options • Constructibility • To be used for: • Stations • Tunnels • Maintenance Facilities
Application of VE 11/15/2011 27 2-Value Engineering for the Crosstown Project Formal VE Process – 5 Day Workshop
• Day 1 - Presentation by project team and site visit
• Days 2-4 - VE Consultant reviews project documentation and generates analysis of options. VE Consultant may contact project team for additional information.
• Day 5 - VE Consultant delivers presentation of VE recommendations.
Application of VE 11/15/2011 28 2-Value Engineering for the Crosstown Project Formal VE Process Initial Evaluation
• VE Consultant provides draft report
• Project team reviews.
Application of VE 11/15/2011 29 2-Value Engineering for the Crosstown Project Formal VE Process Final Evaluation
• Project team develops position on each recommendation
• Project team modifies designs accordingly
• VE Register is updated with selected options.
Application of VE 11/15/2011 30 2-Value Engineering for the Crosstown Project VE Register
• Active list of selected VE recommendations
• Important tool to convey message to other teams
• VE updates issued regularly
Application of VE 11/15/2011 31 2-Value Engineering for the Crosstown Project 3 Types of VE - Continued
Construction VE:
• Contracts encourage contractors to submit alternatives
• Internal evaluation
• Cost benefits shared with contractor
Application of VE 11/15/2011 32 2-Value Engineering for the Crosstown Project Agenda
1. Eglinton Scarborough Crosstown Overview
2. Value Engineering for the Crosstown Project
3. Examples of VE Workshops (i) SRT Conversion
Application of VE - The Crosstown Project 11/15/11 33 3(i)– SRT Conversion SRT Conversion
Application of VE - The Crosstown Project 11/15/11 34 3(i)– SRT Conversion SRT Conversion
Elevated Section • Midland Station • Scarborough CC Stn • McCowan Station
Tunnel Section
At-Grade Section • Lawrence Station • Ellesmere Station
Kennedy Station
Application of VE - The Crosstown Project 11/15/2011 35 3(i)– SRT Conversion Application of VE - The Crosstown Project 11/15/2011 36 3(i)– SRT Conversion SRT Conversion- New LRT Vehicle Mark 1 Flexity
• Heavier (Axle load 12 vs 6 tonnes) • Low floor • Catenary traction power • Longer consist (93m vs 51m)
Application of VE - The Crosstown Project 11/15/2011 37 3(i)– SRT Conversion SRT Conversion - Scope
Application of VE - The Crosstown Project 11/15/2011 38 3(i)– SRT Conversion VE Workshop – SRT Conversion
• Design was at approximately 10% • Improve design by focusing on high cost items and improving project performance • Assist in selection of design options
Application of VE - The Crosstown Project 11/15/2011 39 3(i)– SRT Conversion VE Workshop – SRT Conversion
Establish Performance Attributes:
Transit Operations User Accessibility Maintainability Construction Impacts Environmental Impacts Project Schedule Risk
Application of VE - The Crosstown Project 11/15/2011 40 3(i)– SRT Conversion VE Workshop – SRT Conversion Performance Attribute Weighting
PERFORMANCE ATTRIBUTE MATRIX Which attribute is more important to the project? TOTAL %
Transit Operations A A/B A A A A/F A 6.0 21.4%
User Accessibility B B B B B/F B 6.0 21.4%
Maintainability C C C C/F C 4.5 16.1%
Construction Impacts D E F D 2.0 7.1%
Environmental Impacts E F E 3.0 10.7%
Project Schedule F F 5.5 19.6%
Risks G 1.0 3.6%
28.0 100%
Application of VE - The Crosstown Project 11/15/2011 41 3(i)– SRT Conversion Proposed At-Grade N Station Modification Modify Roof Over Track
Extend Platform
Lower Platform
Application of VE - The Crosstown Project 11/15/2011 42 3(i)– SRT Conversion VE Evaluation of At-Grade Stations
Performance % Change Cost Value Index % Value OVERALL PERFORMANCE % Savings (P) Performance (C) (P/C) Improvement
Baseline 500 $237.7 2.10
Replace framing with thinner, shop A-8 454 -9% $228.4 4% 1.99 -6% fabricated beams
Platform canopies only, no roof A-4a 369 -26% $223.3 6% 1.65 -21% over tracks, raise track
At extensions, no roof, only A-4b 435 -13% $227.5 4% 1.91 -9% platform canopies
Validation - The Base Case design has the highest Value
Application of VE - The Crosstown Project 11/15/2011 43 3(i)– SRT Conversion SProposed Elevated Station Modification Raise Roof over Track
VE Supported Base Case
Extend Platform
N Strengthen Track Deck And Raise Track
Strengthen Joints
Application of VE - The Crosstown Project 11/15/2011 44 3(i)– SRT Conversion SRT Conversion - Tunnel Scope
Modify Tunnel to accommodate larger vehicle
Application of VE - The Crosstown Project 11/15/2011 45 3(i)– SRT Conversion Proposed Tunnel Modification Raise support Tunnel ‐ Roof Modification columns & walls and add roof
Remove existing tunnel roof
Application of VE - The Crosstown Project 11/15/2011 46 3(i)– SRT Conversion Tunnel Modification - Sequencing
1. Construct detour and remove mainline 2. Remove tunnel roof, raise support columns and walls 3. Cast new tunnel roof
4. Re-install GO Transit mainline
5. Remove detour
Application of VE - The Crosstown Project 11/15/2011 47 3(i)– SRT Conversion Tunnel Modification - Sequencing
6. VE: Use existing spur as detour (not acceptable to GO)
Application of VE - The Crosstown Project 11/15/2011 48 3(i)– SRT Conversion SRTElevated Conversion Guideway Elevated StructureExisting with Structure New Vehicle
Overstressed due to 100% additional load
Application of VE - The Crosstown Project 11/15/2011 49 3(i)– SRT Conversion Elevated Structure Modification Options Identified by Project Team
• Option 1 –Fibre Reinforced Polymer (FRP)
• Option 2 - Conventional Reinforcing
• Option 3 - New Superstructure
• Option 4 - New Guideway
• VE did not identify any new options
Application of VE - The Crosstown Project 11/15/2011 50 3(i)– SRT Conversion VE Evaluation Option 1 - FRP Reinforcing
• Quality Control is a challenge
• Weather dependant
• Relatively new and on-going research
• VE did not recommend
Application of VE - The Crosstown Project 11/15/2011 51 3(i)– SRT Conversion Option 2. Conventional Reinforcing
Add Concrete Slab With 20 Dowels Per Metre
Exterior Post-tensioning Exterior Post-tensioning
External Stirrups For Girder
Application of VE - The Crosstown Project 11/15/2011 52 3(i)– SRT Conversion VE Evaluation Option 2 - Conventional Reinforcing Evaluation
• Requires 40,000 dowels • Existing structure participates in live load – Cracking Potential is High • Corrosion • Only expect 25 year life • VE did not recommend
Application of VE - The Crosstown Project 11/15/2011 53 3(i)– SRT Conversion Elevated Guideway Option 3. New Superstructure Option 2 New Superstructure
Proposed Superstructure
Pier Modification EXISTING PIER
Application of VE - The Crosstown Project 11/15/2011 54 3(i)– SRT Conversion VE Evaluation Option 3 - New Superstructure on Existing Piers/Foundations
• Higher capital cost • 75 year life • Recommended by VE
Application of VE - The Crosstown Project 11/15/2011 55 3(i)– SRT Conversion Option 4. New Guideway-Superstructure and Piers
• Highest capital cost • VE did not recommend
Application of VE - The Crosstown Project 11/15/2011 56 3(i)– SRT Conversion Elevated Structure - VE Follow-Up • Life Cycle Cost Analysis conducted by TTC • Results support VE recommendation
Application of VE - The Crosstown Project 11/15/2011 57 3(i)– SRT Conversion VE Workshop – SRT Conversion Summary
• Did not result in capital cost savings • Did result in improved performance • Assisted in selection of options • Supported base case designs
Application of VE - The Crosstown Project 11/15/2011 58 3(i)– SRT Conversion Agenda
1. Eglinton Scarborough Crosstown Overview
2. Value Engineering for the Crosstown Project
3. Examples of VE Workshops (i) SRT Conversion (ii) Station Box Length
Application of VE - The Crosstown Project 11/15/11 59 3 (ii) Station Box Length Station Design
Application of VE - The Crosstown Project 11/15/2011 60 3 (ii) Station Box Length Station Location
• Minimize property and construction impacts • Minimize disruption to extensive utilities around stations • Accommodate local traffic during construction
Application of VE - The Crosstown Project 11/15/2011 61 3 (ii) Station Box Length Station Construction
• Smaller station – Less impact – Less cost – Shorter schedule
• VE performed on Station Box Length
Application of VE - The Crosstown Project 11/15/2011 62 3 (ii) Station Box Length Station Box Length
Application of VE - The Crosstown Project 11/15/2011 63 3 (ii) Station Box Length Station Box Length
Application of VE - The Crosstown Project 11/15/2011 64 3 (ii) Station Box Length Station Box Length
Application of VE - The Crosstown Project 11/15/2011 65 3 (ii) Station Box Length Station Box Length
Application of VE - The Crosstown Project 11/15/2011 66 3 (ii) Station Box Length Relocate Vent Fans
Application of VE - The Crosstown Project 11/15/2011 67 3 (ii) Station Box Length Station Box Length
95 m
Application of VE - The Crosstown Project 11/15/2011 68 3 (ii) Station Box Length Station Box Length
VE Alternative Box Length Cost Saving Reduction per Station
Vent fans outside station box at entrance buildings 22m $ 3.3 M
Delete fire fighter access shafts (in‐line stations) 3m $ 1.0 M
Platform length reduced from 97 to 95m 2m $ 0.6 M
POTENTIAL COST SAVING PER IN‐LINE STATION 27m $ 4.9 M (Location Specific) TOTAL POTENTIAL COST SAVING $ 100 M
Application of VE - The Crosstown Project 11/15/2011 69 3 (ii) Station Box Length Agenda
1. Eglinton Scarborough Crosstown Overview
2. Value Engineering for the Crosstown Project
3. Examples of VE Workshops (i) SRT Conversion (ii) Station Box Length (iii) Tunnel Design
Application of VE- The Crosstown Project 11/15/11 70 3 (iii) – Tunnel Design Eglinton Tunnels
Scope
• 19 km tunnel from Kennedy to West Launch Shaft (Black Creek Drive)
Application of VE- The Crosstown Project 11/15/2011 71 3 (iii) – Tunnel Design Eglinton Tunnels
Mainstream VE:
Tunnelling vs cut and cover • Tunnelling more cost effective for long distances • Less impact to community
Tunnel Diameter • Minimize to reduce costs
Application of VE- The Crosstown Project 11/15/2011 72 3 (iii) – Tunnel Design Eglinton Tunnel Boring
• 4 TBMs have been purchased
Application of VE- The Crosstown Project 11/15/2011 73 3 (iii) – Tunnel Design Constructing New Stations & Tunnels
Application of VE- The Crosstown Project 11/15/2011 74 3 (iii) – Tunnel Design Formal VE – Tunnel Design
Scope
• VE performed on 60% tunnel design.
• VE report under review
Application of VE- The Crosstown Project 11/15/2011 75 3 (iii) – Tunnel Design Eglinton Tunnel Design
VE Alternative Cost Saving (Preliminary)
Excavate station boxes from Dufferin east to Yonge prior to $ 59 M tunnelling Utilize secant walls as part of the permanent station structure $ 44 M
Use Eglinton West Station box to extract and launch TBMs $ 30 M
Utilize longer TBM tunnel drives $ 26 M
POTENTIAL COST SAVINGS (TOP 4 BIG WINS) $ 159 M
Application of VE- The Crosstown Project 11/15/2011 76 3 (iii) – Tunnel Design Tunnel Construction
Application of VE- The Crosstown Project 11/15/2011 77 3 (iii) – Tunnel Design Agenda
1. Eglinton Scarborough Crosstown Overview
2. Value Engineering for the Crosstown Project
3. Examples of VE Workshops (i) SRT Conversion (ii) Station Box Length (iii) Tunnel Design
4. Questions
Application of VE - The Crosstown Project 11/15/11 78 4 – Questions Questions
Contact: Rick Thompson Chief Project Manager – SRT/Yards Toronto Transit Commission Transit Expansion Department Tel: 416-397-4870 e-mail: [email protected]
Application of VE - The Crosstown Project 11/15/11 79 4 – Questions