Pavement Management: Making Smart Funding Decisions at WYDOT
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- Gervais Doyle
- 5 years ago
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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?