Pavement Management: Making Smart Funding Decisions at WYDOT

Transcription

1 Act Check Plan Do Pavement Management: Making Smart Funding Decisions at WYDOT Rocky Mtn. Asphalt Conference February, 2011 Excellence in Transportation

2 Act Check Plan Brief History in Time Do 1991: ISTEA required PMS for fed. funded systems WYDOT in- house development started 1993: Initiated network condition data collection 2004: Started transition from inhouse system to Agile Assets Excellence in Transportation

3 Act Check Do Plan Legislative Service Office Recommendation: WYDOT should begin to revise policies and re-orient the district focus to support a (Statewide) system-level project selection approach. WYDOT and General Fund Appropriations for Highways, April 14, 2008 Excellence in Transportation

4 Act Check Do Plan Pavement Management Excellence in Transportation

5 Act Objective Condition Check Do Plan Measurement Roughness Rutting Condition (Cracking) Friction Excellence in Transportation

6 Data Archives

7 Data Archives Pavement data used for section ratings: Pavement smoothness: International Roughness Index (IRI) in inches/mile Rutting: inches Pavement cracking and distresses: Pavement Condition Index (PCI) Composite: Present Serviceability Rating (PSR)

8 Act Check Do Plan Collection Vehicle Excellence in Transportation

9 Act Check Do Plan Friction Tester Excellence in Transportation

10 Composite Condition Index

11 Composite Condition Index Present Serviceability Rating (PSR) Composite rating to determine overall condition of section; 0-5 scale Asphalt: combines PSI, rutting, and PCI Concrete: combines PSI and PCI only

12 Check Act Do Plan Pavement Serviceability Rating (PSR) Poor Fair Good Excellent Excellence in Transportation

13 Agile Assets Pavement Management System Data Management Materials Modeling and Performance Pavement Performance History Analytics Performance Projections Funding Optimizations (strategy selection) Project Rehab timeline Project Recommendations

14 AA Pavement Module Setup Flow Chart Performance Modeling Categories Performance Model Development Pavement Treatments Decision Trees Budget Categories Network Analysis Candidate Project List

15 AA Pavement Module Setup Flow Chart Performance Modeling Categories Performance Model Development Pavement Treatments Decision Trees Budget Categories Network Analysis Candidate Project List

16 Performance Modeling Categories (PMC)

17 Performance Modeling Categories (PMC) Why do we need to put sec?ons of road into performance modeling categories?

18 Performance Modeling Categories (PMC) Why do we need to put sec?ons of road into performance modeling categories?

19 Performance Modeling Categories (PMC) Why do we need to put sec?ons of road into performance modeling categories?

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21 Performance Modeling Categories Pavement Type: Asphalt ESALs: < > 2500 Base Type: Asphalt over Base Asphalt over Base Asphalt over Base Asphalt over Concrete Asphalt over Base Asphalt over Concrete PMC: Granular Crack & Seat Crack Treated & Seat Granular Crack & Seat Crack Treated & Seat Granular Crack & Seat Crack Treated & Seat Crack & Seat Granular Treated Crack & Seat

22 Performance Modeling Categories Pavement Type: Concrete ESALs: < 500 >=500 Base Type: Plain Jointed Dowel Jointed Plain Jointed Dowel Jointed PMC: Granular Crack & Seat Crack Treated & Seat Granular Crack & Crack Treated & Granular Treated Granular Crack & Crack Treated & Seat Seat Seat Seat

23 AA Pavement Module Setup Flow Chart Performance Modeling Categories Performance Model Development Pavement Treatments Decision Trees Budget Categories Network Analysis Candidate Project List

24 Performance Model Development

25 Performance Model Development Maintenance ac?vi?es such as chip seals, crack seals and patching included in models All roads have received periodic maintenance Maintenance work has not always been documented Other than pavement fric?on, improvement can be difficult to quan?fy. However, life of pavement is extended.

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28 AA Pavement Module Setup Flow Chart Performance Modeling Categories Performance Model Development Pavement Treatments Decision Trees Budget Categories Network Analysis Candidate Project List

29 Pavement Treatment Types

30 Pavement Treatment Types Maintenance Chip Seal Crack Seal Patching Isolated slab replacement (concrete)

31 Pavement Treatment Types Maintenance Chip Seal Crack Seal Patching Isolated slab replacement (concrete)

32 Pavement Treatment Types

33 Pavement Treatment Types 1R preventa?ve Micro- surface Thin overlay (< 2 ) Mill & OGFC Grind & texture (concrete)

34 Pavement Treatment Types 1R preventa?ve Micro- surface Thin overlay (< 2 ) Mill & OGFC Grind & texture (concrete)

35 Pavement Treatment Types 1R preventa?ve Micro- surface Thin overlay (< 2 ) Mill & OGFC Grind & texture (concrete) 2R minor rehabilita?on Surface prep.* & 2 overlay Dowel bar retrofit & grind (PCCP) *mill, level, FDR, or combina?on

36 Pavement Treatment Types 1R preventa?ve Micro- surface Thin overlay (< 2 ) Mill & OGFC Grind & texture (concrete) 2R minor rehabilita?on Surface prep.* & 2 overlay Dowel bar retrofit & grind (PCCP) *mill, level, FDR, or combina?on

37 Pavement Treatment Types

38 Pavement Treatment Types 3R major rehabilita?on Widen, surface prep.* & 2 overlay Crack & seat, level, & 4 overlay

39 Pavement Treatment Types 3R major rehabilita?on Widen, surface prep.* & 2 overlay Crack & seat, level, & 4 overlay 4R full reconstruc?on

40 Pavement Treatment Types 3R major rehabilita?on Widen, surface prep.* & 2 overlay Crack & seat, level, & 4 overlay 4R full reconstruc?on Mobility traffic capacity Extra lanes

41 Pavement Treatment Types 3R major rehabilita?on Widen, surface prep.* & 2 overlay Crack & seat, level, & 4 overlay 4R full reconstruc?on Mobility traffic capacity Extra lanes Pavement Management currently models & recommends only 1R, 2R, and 3R treatments

42 Pavement Treatment Types 3R major rehabilita?on Widen, surface prep.* & 2 overlay Crack & seat, level, & 4 overlay 4R full reconstruc?on Mobility traffic capacity Extra lanes Pavement Management currently models & recommends only 1R, 2R, and 3R treatments *mill, level, FDR, or comb.

43 Pavement Treatment Improvements

44 Pavement Treatment Improvements 1R preventa?ve PSR Index: jump 25 not to exceed 85 Ride Index: jump 20 not to exceed 85 PCI & Rut Index: set to perfect condi?on

45 Pavement Treatment Improvements 1R preventa?ve PSR Index: jump 25 not to exceed 85 Ride Index: jump 20 not to exceed 85 PCI & Rut Index: set to perfect condi?on 2R minor rehabilita?on All indices: set to perfect condi?on

46 Pavement Treatment Improvements 1R preventa?ve PSR Index: jump 25 not to exceed 85 Ride Index: jump 20 not to exceed 85 PCI & Rut Index: set to perfect condi?on 2R minor rehabilita?on All indices: set to perfect condi?on 3R major rehabilita?on All indices: set to perfect condi?on

47 Pavement Treatment Costs

48 Pavement Treatment Costs Average cost per square yard was calculated for 1R, 2R, and 3R treatments 1R cost: $2/SY - $9/SY 2R cost: $4/SY - $27/SY 3R cost: $25/SY - $84/SY Includes all costs specifically related to the mainline surfacing improvement If a project included roadway widening in order to accommodate an overlay, those costs were included

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50 Check Act Do Plan Project Costs NOT Pavement-Related 1R 31% 2R 35% 3R 55% 4R 57% Excellence in Transportation

51 AA Pavement Module Setup Flow Chart Performance Modeling Categories Performance Model Development Pavement Treatment Types Decision Trees Budget Categories Network Analysis Candidate Project List

52 Decision Trees

53 Decision Trees Originally, specific treatments were built into trees. However, this was found to be too detailed. Now only general treatments recommended (1R, 2R, 3R)

54 Decision Trees Originally, specific treatments were built into trees. However, this was found to be too detailed. Now only general treatments recommended (1R, 2R, 3R) A different decision tree has been developed for each pavement type on each system

55 Interstate Asphalt Decision Tree NO YES

56 AA Pavement Module Setup Flow Chart Performance Modeling Categories Performance Model Development Pavement Treatments Decision Trees Budget Categories Network Analysis Candidate Project List

57 Balancing System Needs Pavement Funding Buckets Surface Treatments (1R, 2R, 3R) Systems (Interstate, Non- Int NHS, Non- NHS) Other Funding Buckets Safety Mobility Bridge

58 Budget Categories

59 Budget Categories Needed so statewide budget can be distributed between systems and treatment types. Also, accounts for earmarked funds.

60 Budget Categories Needed so statewide budget can be distributed between systems and treatment types. Also, accounts for earmarked funds. Without buckets, lower volume roads would receive most money because of larger benefits

61 Budget Categories Needed so statewide budget can be distributed between systems and treatment types. Also, accounts for earmarked funds. Without buckets, lower volume roads would receive most money because of larger benefits Buckets allow WYDOT to manage systems and strategies

62 Budget Categories

63 Budget Categories 9 Pavement Funding Buckets Interstate 1R, 2R, 3R Non- Interstate NHS 1R, 2R, 3R Non- NHS 1R, 2R, 3R

64 AA Pavement Module Setup Flow Chart Performance Modeling Categories Performance Model Development Pavement Treatments Decision Trees Budget Categories Network Analysis Candidate Project List

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71 AA Pavement Module Setup Flow Chart Performance Modeling Categories Performance Model Development Pavement Treatments Decision Trees Budget Categories Network Analysis Candidate Project List

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75 Questions?