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TAM ETG Webinar #3 Network Life Cycle Analysis Part 1: Introduction and Overview Wednesday, July 8, 2015 1.

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Presentation on theme: "TAM ETG Webinar #3 Network Life Cycle Analysis Part 1: Introduction and Overview Wednesday, July 8, 2015 1."— Presentation transcript:

1 TAM ETG Webinar #3 Network Life Cycle Analysis Part 1: Introduction and Overview Wednesday, July 8, 2015 1

2  Brief Overview (development process, components, assets analyzed)  MnDOT’s TAMP Pavement Life Cycle Costs  Purpose  Process  Inputs and Assumptions  Strategies and Results  MnDOT’s Post-TAMP Pavement Asset Management Initiative  Collect Better Data on Pavement Maintenance Activities – Labor, Equipment, Materials

3  Transportation Asset Management Plan (TAMP)  FHWA pilot project  Moving Ahead for Progress in the 21 st Century (MAP-21)

4  Asset Inventory & Conditions  Risk Analysis  Life Cycle Cost Analysis  Performance Measures & Targets  Performance Gap Assessment  Financial Plan & Investment Strategies  Implementation & Next Steps

5 TAMP1 (July 2014)   Pavements   Bridges   Deep Stormwater Tunnels   High-Mast Light Tower Structures   Highway Culverts   Overhead Sign Structures TAMP2 (December 2015)   Facilities   Intelligent Transportation System Infrastructure   Lighting   Noise Walls   Traffic Signals   Pedestrian Infrastructure

6 MnDOT’s TAMP Pavement Life Cycle Costs

7  Identify Better Management Strategies  Quantify Future Maintenance  Determine Appropriate Treatments

8 Life-Cycle Costs Iceberg Initial Capital Expenditures Maintenance Costs Future Capital Costs Operational costs are not part of LCC, but are part of overall management $ Background image: http://www.pvisoftware.com/blog/wp-content/uploads/2013/11/Pegasus_vertex_Iceberg.png

9  Established Pavement Technical Work Group  Materials (i.e. pavement office) & District maintenance staff  Subject matter experts provided guidance on typical inputs and assumptions

10  Analysis Period: 70 years  Discount Rate: 2.2%  Salvage Value Included  Costs Collected/Analyzed by $/Lane-Mile  Rigid pavements: 11%, Flexible pavements:89%  Only Agency Costs Considered  Annual Inspection Cost  $37 per roadway-mile

11  Routine & Reactive Maintenance  MnDOT Metro spent $1.4 Million in 2012  Maintenance investment by condition (G/F/P) could not be determined  Maintenance performed 482 ln-mi of pavements: 295 in Good, 161 in Fair and 26 in Poor  Weighting factors applied to maintenance costs: Good-0.8, Fair-1.2, Poor-1.8  Equates to Good-$2340/ln-mi, Fair-$3480/ln- mi, Poor-$5229/ln-mi

12  Typical, Desired, Worst First Strategies  Identify minor and major rehab surface treatments for asphalt and concrete Deterioration Models for Various LCCA Scenarios

13 Typical Pavement Age (yrs) Pavement Age Range (yrs) Treatment Typical Condition When Applied Typical Cost ($/ln-mi)Cost Range ($/ln-mi) 00Initial Construction-$657,500$210,000 - $2,000,000 86-10Crack TreatmentGood$6,000$3,000 - $10,000 1210-14Surface TreatmentGood$15,000$10,000 - $30,000 2018-22Mill & Overlay (1 st Overlay)Fair$155,000$145,000 - $175,000 2421-25Crack TreatmentGood$6,000$3,000 - $10,000 2625-29Surface TreatmentFair$15,000$10,000 - $30,000 3533-35Mill & Overlay (2 nd Overlay)Fair$155,000$145,000 - $175,000 3936-40Crack TreatmentGood$6,000$3,000 - $10,000 4139-43Surface TreatmentFair$15,000$10,000 - $30,000 4745-49Mill & Overlay (3 rd Overlay)Poor$155,000$145,000 - $175,000 5149-53Crack TreatmentGood$6,000$3,000 - $10,000 5351-55Surface TreatmentFair$15,000$10,000 - $30,000 5755-59Mill & Overlay (4 th Overlay)Poor$155,000$145,000 - $175,000 6159-63Crack TreatmentGood$6,000$3,000 - $10,000 6361-65Surface TreatmentFair$15,000$10,000 - $30,000 6563-67Mill & Overlay (5 th Overlay)Poor$155,000$145,000 - $175,000 6866-70Crack TreatmentGood$6,000$3,000 - $10,000 7068-72ReconstructionFair$657,500$210,000 - $2,000,000

14 Typical Pavement Age (yrs) Pavement Age Range (yrs) Treatment Typical Condition When Applied Typical Cost ($/ln-mi)Cost Range ($/ln-mi) 00Initial Construction-$657,500$210,000 - $2,000,000 86-10Crack TreatmentGood$6,000$3,000 - $10,000 1210-14Surface TreatmentGood$15,000$10,000 - $30,000 2018-22Mill & Overlay (1 st Overlay)Fair$155,000$145,000 - $175,000 2321-25Crack TreatmentGood$6,000$3,000 - $10,000 2725-29Surface TreatmentFair$15,000$10,000 - $30,000 3533-35Mill & Overlay (2 nd Overlay)Fair$155,000$145,000 - $175,000 3836-40Crack TreatmentGood$6,000$3,000 - $10,000 4341-45Surface TreatmentFair$15,000$10,000 - $30,000 5047-53FDR/Reconstruction-$657,500$210,000 - $2,000,000 5856-60Crack TreatmentGood$6,000$3,000 - $10,000 6260-64Surface TreatmentGood$15,000$10,000 - $30,000 7068-72 Mill & Overlay (1 st Overlay after FDR/Reconstruction) Fair$155,000$145,000 - $175,000

15

16 MnDOT’s Post-TAMP Pavement Asset Management Initiative

17  “Understand Life Cycle Costs of Major Assets” – Maintenance costs (TAMP)  Phase 1: Determine how much “labor, equipment, material (LEM)” was spent at certain asset conditions?  Pavement  Entering LEM in RCA; assigning reference points for certain (maint.) source codes  RCA RECORD is being divided into segments; matched to condition data from pavement Van (M-records) THREE M-RECORDS Roadway Segment 01234 RCA RECORD (TOTAL LEM) Reference Points LEM1 LEM2 LEM3

18 18 Pavement Van Condition Data LEM From Work Orders

19 19 Condition of Road Improves  Focus on RED LINE: As Condition Improves, Maintenance spends less money/mile

20 Typical Pavement Age* (yrs) Pavement Age Range** (yrs) Treatment Typical Condition When Applied Typical Cost ($/ln-mi)***Cost Range ($/ln-mi)*** 00Initial Construction-$657,500 # $210,000 - $2,000,000 86-10Crack TreatmentGood$6,000$3,000 - $10,000 1210-14Surface TreatmentGood$15,000$10,000 - $30,000 2018-22Mill & Overlay (1 st Overlay)Fair$155,000$145,000 - $175,000 2321-25Crack TreatmentGood$6,000$3,000 - $10,000 2725-29Surface TreatmentFair$15,000$10,000 - $30,000 3533-35 Mill & Overlay (2 nd Overlay) Fair$155,000$145,000 - $175,000 3836-40Crack TreatmentGood$6,000$3,000 - $10,000 4341-45Surface TreatmentFair$15,000$10,000 - $30,000 5047-53FDR/Reconstruction-$657,500 # $210,000 - $2,000,000 5856-60Crack TreatmentGood$6,000$3,000 - $10,000 6260-64Surface TreatmentGood$15,000$10,000 - $30,000 7068-72 Mill & Overlay (1 st Overlay after FDR/Reconstruction) Fair$155,000$145,000 - $175,000

21 For further information contact Kirby Becker Kirby.Becker@state.mn.usKirby.Becker@state.mn.us / (651) 366-3740 Or visit http://www.dot.state.mn.us/assetmanagement

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