Transcript 2010 ATC SCOD presentation

Alternate Technical
Concepts
KATHY HARVEY
State Design Engineer
Missouri Department of Transportation
AASHTO Subcommittee on Design
July 28, 2010
Columbia, S.C.
TODAY’S PRESENTATION
 Why
 What
 How
 Challenges
 Future
Project Development Process – New and Improved!
Construction Program Cliff
Project Development Process – New and Improved!
ATC WHY? – Best Value for Every $
 Dwindling financial resources
 Many ways to accomplish goals
 49 other DOTs –
municipalities - FHWA
 Contractor’s experience
Project Development Process – New and Improved!
ATC WHY?
MoDOT + Industry = 1 Team = Best Value
 D/B job experience
 Encourage $ Savings
 Contract administration
 Contractor risk
 VE vs. ATC
Project Development Process – New and Improved!
ATCs …
 are proposed changes to agency-supplied basic
configurations, project scope, design or
construction criteria.
 provide a solution that is equal or better to the
requirements in the RFP.
 are similar to value engineering, but are made as
a part of the proposal before contract award.
 provide flexibility to the proposers in order to
enhance innovation and achieve efficiency.
Project Development Process – New and Improved!
ATC WHAT? - Legality
“ … likelihood of a protest reduced because of the
reluctance of the courts to overturn agency
decisions regarding advantages of one proposal
over another, unless it is apparent that the decision
was arbitrary or capricious, or agency failed to
follow its own procurement practices.”
-- NCHRP 561 p S-9
Project Development Process – New and Improved!
ATC WHAT? – Different than D-B
 Extension of design process - VE
 Contractor is VE partner
 Evaluate design effort vs. benefit
 Design is funded as preliminary engineering
Project Development Process – New and Improved!
ATC How? – Where we started
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Rock – the deal maker
Profiles – can we roll?
Medians – width or protection?
Removals – if it ain’t broke don’t fix it
Retaining Walls – CIP vs. MSE vs. elimination
Materials – optional if we can
Traffic Control
Project Development Process – New and Improved!
ATC How? – Recent additions
 Bridge Designs
 Interchange Configurations
 New use for what’s already there
Bottom Line – VE up front – Competitively Bid
Project Development Process – New and Improved!
ATC HOW? – Grading and Drainage
Rock at
2:1
4:1
PIPE
Project Development Process – New and Improved!
ATC HOW? – Pavement
Pavement 10” PCCP/13.5” AC
4” Aggregate Base
Project Development Process – New and Improved!
ATC HOW? – Pavement
Pavement 8.5” PCCP/9.5” AC
Thick Rock Base
Project Development Process – New and Improved!
ATC HOW? – Bridges
 Concrete Box vs. Arch Structures
 Steel Girder vs. Concrete Girder
 Box Girder vs. NU Girder
Project Development Process – New and Improved!
ATC HOW? - General
 Currently
 Job Special Provision
 May include sketches
 Pre-approved design changes
Project Development Process – New and Improved!
ATC HOW? – Pay Items
 Plan Quantity of Initial Design
 Lump Sum Sections
 Lump Sum Savings
 Change Order
 Change to revised quantity
 New plans for ATC effects
Project Development Process – New and Improved!
ATC HOW? - Pre-Approved
 Timelines – submittal & approval
 Technical Parameters
 Detailed Submittal Process
 Evaluation
 Project Team review
 Confidential
 Pass/Fail
Project Development Process – New and Improved!
ATC How? – Design
 Base set of plans always provided
 MoDOT/Consultant re-design
 Collaborative Plan Development
 Re-design completion after award
 Evolving Process
Project Development Process – New and Improved!
ATC Challenges? – Design
 Design effort for ATC submittal
 Who leads ATC re-design
 No cost change order
 VE of ATC’s
 Contractor incentive
 ATC team w/AGC
Project Development Process – New and Improved!
ATC Future? – Development
 MoDOT
 FWHA
 Contractors
 Suppliers
 Consultant
 ATCs and VECPs
Project Development Process – New and Improved!
ATC Example – One that worked
Route H bridge over I-44, Springfield
 Reduced 4-span bridge over I-44 to 2span with use of MSE walls
Project Development Process – New and Improved!
ATC Example – One that didn’t
I-70/I-435 Interchange, Kansas City
 ATC eliminated 1 bridge, 3 MSE walls, reduced
grading and lowered road-user costs.
Saved
$2.4 million.
 Not approved by FHWA.
 Now a VE proposal.
Project Development Process – New and Improved!