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Selecting the Right Maintenance Treatment

Selecting the Right Maintenance Treatment. Sponsored by: Minnesota LTAP Center Presented by: Michael Marti, P.E. SRF Consulting Group, Inc. Dan Wegman, P.E. SemMaterials. Description/Purpose Timing Effects on various pavement distress Anticipated performance/service life Unit cost

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Selecting the Right Maintenance Treatment

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  1. Selecting the Right Maintenance Treatment Sponsored by:Minnesota LTAP Center Presented by:Michael Marti, P.E. SRF Consulting Group, Inc. Dan Wegman, P.E. SemMaterials

  2. Description/Purpose Timing Effects on various pavement distress Anticipated performance/service life Unit cost Roadway use/level of traffic Traffic control concerns Limitations Seasonal Availability of qualified staff and contractors Availability of quality materials Construction specifications For Each Maintenance TreatmentAn agency needs to define:

  3. Recommended Applications Surface Treatments

  4. Recommended Applications Surface Treatments

  5. Recommended ApplicationsPatching

  6. Asphalt Maintenance Techniques

  7. Equivalent Annual Cost(EAC) = Unit Cost/Years of Life

  8. Right Treatment Depends on • Existing pavement • Type, structure, roughness, skid, distresses, climate, etc. • Environment • Climate, past & future traffic, noise, etc. • Life cycle costs • Construction, maintenance, rehabilitation, user-delay costs, impact on local businesses, vehicle repair, etc. • Available treatments • Construction requirements, performance, costs, capabilities of local contractors

  9. Analysis Procedures for Most Effective Treatment • A number of procedures for determining cost effectiveness exist and should be used • Costshould be part of the decision process but not the only consideration • Use of decision trees is a viable method • Cost • Life Cycle • Pavement Management of Network • User Delay • Availability of Contractors • Availability of Materials Right Treatment, Right Time, Right Project Done Right!

  10. Example of Selection Process • Determine Rating Factors • Assign “Importance Value” to Each Factor • Percentage (must total 100) • Rank each of the Available/Applicable Maintenance Treatments • Calculate Totals

  11. Example of Selection Process 11-Year Old Pavement, 6000 ADT, Previously Seal Coated, L-Block Cracking, L-Rutting, L-Polished • Determine Rating Factors • Cost • How well it “fixes” distresses • Traffic Disruption (during maintenance) • Traffic Disruption (long term) • Assign “Importance Value” to Each Factor • Percentage (must total 100) • Rank each of the Available/Applicable Maintenance Treatments • Calculate Totals • Determine Rating Factors • Cost • How well it “fixes” distresses • Traffic Disruption (during maintenance) • Traffic Disruption (long term) • Assign “Importance Value” to Each Factor • Percentage (must total 100) • Rank each of the Available/Applicable Maintenance Treatments • Determine Rating Factors • Cost • How well it “fixes” distresses • Traffic Disruption (during maintenance) • Traffic Disruption (long term) • Assign “Importance Value” to Each Factor • Percentage (must total 100) • Determine Rating Factors • Cost • How well it “fixes” distresses • Traffic Disruption (during maintenance) • Traffic Disruption (long term)

  12. Definition of Pavement Preservation The right treatment, At the right time, On the right project.

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