Work zone safety using accelerated bridge construction abc
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Work Zone Safety Using Accelerated Bridge Construction (ABC). Rukhsana Lindsey, UDOT Presented by Jim McMinimee Principal Engineer, Applied Research Associates. Utah. Small State 2.5 M people $350 M Federal Program DOT 1650 employees Currently 6% unemployment statewide

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Work Zone Safety Using Accelerated Bridge Construction (ABC)

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Work zone safety using accelerated bridge construction abc

Work Zone Safety Using Accelerated Bridge Construction (ABC)

Rukhsana Lindsey, UDOT

Presented by Jim McMinimee

Principal Engineer, Applied Research Associates


Work zone safety using accelerated bridge construction abc

Utah

  • Small State

    • 2.5 M people

    • $350 M Federal Program

    • DOT 1650 employees

    • Currently 6% unemployment statewide

  • Big Transportation Program

    • 250+ projects

    • $3+ B under construction


Our need for speed

Our Need for Speed

  • Customer driven culture

  • Willing to take risks

  • Implement new technologies:

    • Accelerated Bridge Construction

    • Accelerate Pavement Construction

    • Diverging Diamond Interchanges

  • Increased partnerships


Department themes

Department Themes

  • Accelerate Delivery

  • Decrease and Minimize Detours or Delays

  • Encourage Innovation that speeds project or provides value

  • Get a Good Price

    Balance of good price vs other themes


New business model

  • Societal Costs Minimized

  • Societal cost model includes safety costs

  • Lowest Construction CostLowest Project Cost

  • Public Praise

  • Political Capital

New Business Model


I 15 design build a case study in project acceleration

I-15 Design Build a Case Study in Project Acceleration

  • I-15 Design Build – SEP 14

    • $1.6 B Contract

    • 17 Miles, 130 Bridges, 7 Urban/3 Interstate Interchanges

    • 10 Year Maintenance Period

  • Drivers for Project

    • Public Support – 4 Years Instead of 9 Years

    • 2002 Winter Olympics

  • I – 15 Incentives

    • Quality, Project Management, MOT, Early Completion

    • Potential $50M

  • Post Mortem User Cost Study UofU Dr Martin

    • USER COSTS SAVED > $500M

    • Saved estimated 4400+ accidents over Traditional

    • 14 Lives Saved


What is abc

What is ABC?

  • Innovative methods to decrease bridge construction time

  • Build elements offsite/outside traffic area

  • Transport to site and install rapidly


Benefits of abc

Benefits of ABC

  • Minimized traffic disruption – from months to days

  • Improved work zone safety – improved worker safety

  • Improved product quality – controlled environment, cure times, easier access, etc.


Innovative technology

Innovative Technology

  • First implementation costs more

  • Potential for new methods to cost less

  • Promise of time savings

  • Positive cost-benefit ratios

  • Promise of cost savings


Utah precast deck panel projects

Utah Precast Deck Panel Projects


Work zone safety using accelerated bridge construction abc

Family of Innovative ABC Elements and Methods

Innovative Accelerated Bridge Construction

Precast Concrete Elements

Modular Construction

Structure Placement

Methods

Accelerated Geotech Work

Fast Track Contracting


Benefits of abc1

Benefits of ABC

  • Minimizes traffic disruption from months to days

  • Improves work zone and worker safety

  • User savings

  • Improves product quality

    • Controlled environment

    • Cure times

    • Easier access


Work zone safety using accelerated bridge construction abc

Utah ABC Costs

18 projects $45M


Animation

Animation


Media support

Media Support


Udot abc history

UDOT ABC History


Projects i 84 riverdale road lego bridge

ProjectsI-84 Riverdale Road; Lego Bridge


Projects 800 north precast deck panels

Projects800 North; Precast Deck Panels


Projects 4500 south over i 215 spmt

Projects4500 South over I-215; SPMT


Projects eagle canyon bridge precast deck panels

ProjectsEagle Canyon Bridge; Precast Deck Panels


2009 slide ins

2009 Slide ins


2009 slide ins1

2009 Slide ins


Work zone safety using accelerated bridge construction abc

ProjectsEcho Canyon Bridge; Slide-in


Udot research study

UDOT Research Study

  • Reviewing status of ABC Program

  • 161 ABC projects

  • Started with SPMT projects


Preliminary results

Preliminary Results

  • 18 Accelerated Bridge Projects- SPMTs

    • Traffic impacts Closures and Detours of 2-3 days

    • Channelizing work zones of usual durations

    • Zero crashes within work zone(!)

    • Bridge built away from traffic with better worker safety and productivity.

    • One statistical surprise – Slightly more accidents after construction over.


Work zone safety using accelerated bridge construction abc

Public Support for ABC

Public Overall Satisfaction With Project Results

(1 = not satisfied, 7 = very satisfied)


Questions

Questions?


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