The costs benefits of implementing a mllrs
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The Costs & Benefits of Implementing a MLLRS. Sponsored by the AASHTO and FHWA and Conducted in the NCHRP. Value Engineering. The value engineering study that was conducted for the NCHRP to support the NCHRP Project 20-07 , Task 302.

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The Costs & Benefits of Implementing a MLLRS

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The costs benefits of implementing a mllrs

The Costs & Benefits of Implementing a MLLRS

Sponsored by the AASHTO and FHWA and Conducted in the NCHRP


Value engineering

Value Engineering

  • The value engineering study that was conducted for the NCHRP to support the NCHRP Project 20-07, Task 302.

  • The task was requested from the American Association of State Transportation Officials (AASHTO)

  • The report was conducted to identify the costs and benefits of implementing and maintaining a statewide Multi-Level Linear Referencing System (MLLRS)


Value engineering1

Value Engineering

  • The VE study was conducted at the Iowa Department of Transportation with a study team consisting of:

    • Renee L. Hoekstra, CVS, RH & Associates

    • Jerome Breyer, Works Consulting

    • Jun Wu, North Carolina Department of Transportation

    • Michael Sheffer, Maryland State Highway Administration

    • Thomas Martin, Minnesota Department of Transportation

    • Peggi Knight, Iowa Department of Transportation

    • Eric Abrams, Iowa Department of Transportation

    • Karen Carroll, Iowa Department of Transportation

    • Ryan Willie, Iowa Department of Transportation

    • Bruce Aquila, Intergraph

    • Gary Waters, ESRI


What is a mllrs

What is a MLLRS?

  • Meets the NCHRP 20-27(2) data model

  • Includes multiple linear referencing methods, multiple cartographic representations and multiple network representations

  • Associates with a central object referred to as a “linear datum”

  • Meets the needs of integrating increasing amounts of linearly referenced data

  • Logically linked with other organizational electronic management systems


Benefits of a mllrs in a state agency

Benefits of a MLLRS in a State Agency

  • Quantitative Benefits

    • Identified as time and cost savings by reducing:

      • Staff hours

      • Operational hours

      • Hours within other departments

      • Improved stewardship of data

      • Business/Operational unit improvements


Quantitative benefits

Quantitative Benefits

  • Business/Operational Unit Improvements

    • Sample Business/Operational Units Used

      • Safety improvements

      • Reduced level of risk for litigation

      • Reduced impacts to projects

      • Reduced maintenance

    • Baseline Savings

      • $1.1 million

    • Optional Functional Elements Savings

      • $2.5 million


Qualitative benefits

Qualitative Benefits

  • Ease of use and accessibility

  • Flexibility and integration

  • Quality of data

  • Internal and external collaboration

  • Data-driven decision support


Other identified benefits

Other Identified Benefits

  • Facilitates the Breakdown of Departmental Silos

  • Able to Take Advantage of External Resources

  • Increased Opportunity to Integrate MLLRS into the Field Operations


Costs to implement a mllrs

Costs to Implement a MLLRS

  • Capital Costs

    • Baseline - $2 million

    • Optional Functional Elements

      • Manage Change - $31,650

      • Model Connectivity - $795,000

      • LRM Development - $40,000 each


Costs to implement a mllrs1

Costs to Implement a MLLRS

  • Maintenance Costs

    • Baseline - $252,000

    • Optional Functional Elements

      • Minor adjustments only


Cost benefit analysis

Cost/Benefit Analysis

  • Based on a 5-year period

  • 3% escalation rate, constant dollar approach

    • Baseline - $2.5 million in savings

    • Cost/Benefit Ratio – 2:1

    • Optional Functional Elements - $10 million in savings

    • Cost/Benefit Ratio – 21:1


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