t16 addressing pavement assest management-galehouse
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TRANSCRIPT
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Larry Galehouse, PE, PSLarry Galehouse, PE, PSLarry Galehouse, PE, PSLarry Galehouse, PE, PS
Director, National Center for Pavement PreservationDirector, National Center for Pavement PreservationDirector, National Center for Pavement PreservationDirector, National Center for Pavement Preservation
Larry Galehouse, PE, PSLarry Galehouse, PE, PSLarry Galehouse, PE, PSLarry Galehouse, PE, PS
Director, National Center for Pavement PreservationDirector, National Center for Pavement PreservationDirector, National Center for Pavement PreservationDirector, National Center for Pavement Preservation
April 23, 2013April 23, 2013
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Signed into Law July 6, 2012P.L. 112-141
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9,000
8,000
7,000
6,000
5,000
4,0002002 2003 2004 20062005 2007 20092008 2010 201320122011
Ce
nte
rlin
e M
ile
s
8,700
4,290
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• Includes urban and rural principal arterials, and
main thoroughfares that carry heavy volumes of
traffic,
• Most on the state highway system and some are on
local roads.
• Many of these local roads function as main streets
for communities and serve commercial areas and
central business districts.
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• New designated NHS roadways must use AASHTO
Green Book standards to meet design expectations
required as part of the NHS classification.
• Design exceptions are remain an available
mechanism in certain situations.
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• Federal law gives the state DOT authority for
selecting projects on the NHS in consultation with
local officials. This potentially gives the state DOT
a larger role in selecting projects on local roads,
though this will likely not require a burdensome
process.
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SEC. 1103. DEFINITIONS.(a) Definitions- Section 101(a) of title 23, United States Code, is amended—
‘‘(2) ASSET MANAGEMENT.—The term ‘asset management’means a strategic and systematic process of operating,maintaining, and improving physical assets, with a focus on both engineering and economic analysis based upon quality information, to identify a structured sequence of maintenance, preservation, repair, rehabilitation, and replacement actions that will achieve and sustain a desired state of good repair over the lifecycle of the assets at minimum practicable cost.’’;
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SEC. 1507. MAINTENANCESection 116 of title 23, United States Code, is amended—
(a) Definitions- In this section, the following definitions apply:‘‘(2) PAVEMENT PRESERVATION PROGRAMS AND
ACTIVITIES.— The term ‘pavement preservation programs and activities’ means programs and activities employing a network level, long-term strategy that enhances pavement performance by using an integrated, cost-effective set of practices that extend pavement life, improve safety, and meet road user expectations.’’;
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Sec. 134. Metropolitan Transportation PlanningTitle 23, United States Code, is amended—
(h) Scope of Planning Process. -(1) In general. - The metropolitan planning process for a
metropolitan planning area under this section shall provide for consideration of projects and strategies that will –(H) emphasize the preservation of the existing
transportation system.
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Sec. 134. Metropolitan Transportation PlanningTitle 23, United States Code, is amended—
(i) Development of Transportation Plan. -(2) Transportation plan. - A transportation plan under
this section shall be in a form that the Secretary determines to be appropriate and shall contain, at a minimum, the following:(G) Capital investment and other strategies. -
Capital investment and other strategies to preserve the existing and projected future metropolitan transportation infrastructureand provide for multimodal capacity increases based on regional priorities and needs.
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Traditional Alternative
D.I. – is distress index, a measure of pavement condition. Scale values: 100=no distress, 50=when reconstruction is required.
R.S.L. – is remaining service life, the time remaining that a pavement can be preserved.
ACTIVITY D.I.(Before)
D.I.(After)
AGELIFE
EXTEND(Years)
R.S.L.(Years)
COST(Lane-Mile)
COMMENTS
NewConstruction 100 0 25
$508,000$ 21,000
Construct CostUser Cost
Reconstruct 49 0 25 25$ 463,000$ 19,000
Construct CostUser Cost
Total$ 971,000$ 40,000
Construct CostUser Cost
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Traditional Alternative
Analysis Period – 25 yr.
Construction = $ 508,000 per lane mile
Preservation = $ 0 per lane mile
Salvage = $ 0 per lane mile
Total Cost = $ 508,000 per lane mile
Analysis Period – 25 yr.
Construction = $ 508,000 per lane mile
Preservation = $ 0 per lane mile
Salvage = $ 0 per lane mile
Total Cost = $ 508,000 per lane mile
(Remaining Service Life = 0 years)
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Preservation Alternative
ACTIVITY D.I.(Before)
D.I.(After)
AGELIFE
EXTEND(Years)
R.S.L.(Years)
COST(Lane-Mile)
COMMENTS
NewConstruction 100 0 25 $ 508,000
$ 12,600Construct CostUser Cost
Crack Sealing 89 94 5 2 22 $ 5,162
$ 350Construct CostUser Cost
Thin Overlay 79 0 10 8 25 $ 40,808
$ 350Construct CostUser Cost
Crack Sealing 84 92 14 1 22 $ 5,162
$ 350Construct CostUser Cost
Slurry Seal 67 0 20 5 21 $ 16,935$ 700
Construct CostUser Cost
Chip Seal 86 93 25 2 18 $ 12,582$ 350
Construct CostUser Cost
Total $ 588,649$ 23,100
Construct CostUser Cost
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Preservation Alternative
Analysis Period – 25 yr.
Construction = $ 508,000 per lane mile
Preservation = $ 80,649 per lane mile
Salvage =($ 333,360) per lane mile
Total Cost = $ 255,289 per lane mile
Analysis Period – 25 yr.
Construction = $ 508,000 per lane mile
Preservation = $ 80,649 per lane mile
Salvage =($ 333,360) per lane mile
Total Cost = $ 255,289 per lane mile
(Remaining Service Life = 18 years)
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Comparison Cost
Preservation Alternative – 25 yr.
Total Cost = $ 255,289 per lane mile
Preservation Alternative – 25 yr.
Total Cost = $ 255,289 per lane mile
Traditional Approach – 25 yr.
Total Cost = $ 508,000 per lane mile
Traditional Approach – 25 yr.
Total Cost = $ 508,000 per lane mile
Alternative Savings = $ 252,711 per lane mileAlternative Savings = $ 252,711 per lane mile
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Social ResponsibilityEcologyEconomy
Sustainable Development
€$%+
Sustainability means meeting present needs without compromising
the ability of future generations to meet their needs.
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Economy
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Ecology
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Social
Responsibility
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0
1
2
3
4
5
0 5 10 15 20 25
Remaining Service Life(years)
Pe
rce
nt
of
Ne
two
rk
6
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0
1
2
3
4
5
0 5 10 15 20 25
Remaining Service Life(years)
6
7
8
Pe
rce
nt
of
Ne
two
rk
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• Must know:
– Available Budget
– Lane Miles of Network
– Unit Costs of Work Types
– Design Life of Reconstruction &
Rehabilitation Work Types
– Life Extensions of Pavement
Preservation Treatments
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• Inventory
• Traffic volume and load
• Pavement condition
• Drainage
• Maintenance
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Preservation Treatments Applied to HMA Pavements
Treatment Treatment Life (yr.) Life Extension (yr.)
Rejuvenator* NA 3 - 6
Surface Sealer 0 - 1 2 - 4
Crack Sealing 3 - 8 2 - 4
Crack Filling 2 - 4 1 - 3
Slurry Seal 4 - 5 3 - 5
Micro Surfacing - Single 3 – 6 3 - 5
Micro Surfacing - Double 4 - 7 4 - 6
Chip Seal - Single 3 – 7 5 - 6
Chip Seal - Double 5 – 10 8 - 10
Ultra-thin Bonded Wearing 7 – 12 NA
Dense Graded Thin HMA 5 - 12 NA
Open Graded Thin HMA 6 - 12 NA
Hot In-place Recycling 6 - 10 NA
Cold In-place Recycling 6 - 10 NA
* Only certain rejuventors were considered
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TreatmentGood
Condition(PCI=80)
Fair
Condition(PCI=60)
Poor
Condition(PCI=40)
Crack Fill 1 - 3 0 - 2 0
Crack Seal 2 - 4 1 - 3 0
Fog Seal 2 - 4 0 - 1 0
Chip Seal 5 - 6 3 - 5 0 - 3
Micro-Surfacing 4 – 6 3 - 5 1 - 4
Thin HMA 4 - 10 3 - 7 2 - 4
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Terminal Threshold
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PMS Data Point
Very
Good
Good
Fair
Poor
Very
Poor
Time (Years)
PMS Data PointPMS Data Point
Measured Life ExtensionMeasured Life Extension
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Simply stated it is the:“right” treatment on the“right” road at the “right” time by the“right” people
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• Other potential criteria
– Availability of qualified contractors
– Availability of materials
– Time (of year) of construction
– Pavement noise
– Facility downtime
– Surface friction
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Conditions Addressed• Oxidation
• Maltine Replenishment
• Moisture Infiltration
100
0
50
100 - 85
IRI <95
Limitations• Initial Low Skid
Costs (yd2)
$0.80 – 0.95
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Conditions Addressed• Oxidation
• Asphalt Film Thickness
• Initial Raveling
• Moisture Infiltration
100
0
50
95 - 75
IRI <95
Limitations• Initial Low Skid
Costs (yd2)
$0.25 – 0.45
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Conditions Addressed• Water Infiltration
• Incompressibles
Primary Working Cracks• Transverse cracking
• Reflective cracking
100
0
50
95 - 80
IRI <95
Limitations• Must have Clean & Dry
Reservoir
Costs (yd2)
$0.55 – .90
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Conditions Addressed• Water Infiltration
• Incompressibles
Non-Working Cracks
Secondary Cracks • Longitudinal cracking
• Minor block cracking
100
0
50
90 - 75
IRI <95
Limitations• Potential Hot Weather
Tracking
Costs (yd2)
$0.55 – .90
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Conditions Addressed• Moisture Infiltration
• Longitudinal cracking
• Transverse cracking
• Raveling
• Friction Loss
100
0
50
85 - 70
IRI <95
Limitations• Opening to Traffic
Dependent on Set-Time
Costs (yd2)
$1.75 – 2.50
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Conditions Addressed• Moisture Infiltration
• Longitudinal cracking
• Transverse cracking
• Raveling
• Friction Loss
• Bleeding
• Rutting
100
0
50
85 - 70
IRI <95
Limitations• Mixture subject to
reflective cracking
Costs (yd2)
$2.00 – 5.00
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Conditions Addressed• Moisture Infiltration
• Longitudinal cracking
• Transverse cracking
• Block cracking
• Friction Loss
• Bleeding
100
0
50
85 - 70
IRI <95
Limitations• Longer set time
Costs (yd2)
$1.50 – 2.50
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Conditions Addressed• Longitudinal cracking
• Transverse cracking
• Block cracking
• Raveling
• Friction Loss
• Bleeding
• Roughness
100
0
50
85 - 65
IRI <95
Costs (yd2)
$10 – $14
Limitations• Cost
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Conditions Addressed• Longitudinal cracking
• Transverse cracking
• Block cracking
• Raveling
• Friction Loss
• Bleeding
• Ride
• Splash/Spray (OGFC)
100
0
50
80 - 60
IRI <120
Costs (yd2)
$6 – $8
Limitations• Cost
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Conditions Addressed• Longitudinal cracking
• Transverse cracking
• Block cracking
• Raveling
• Friction Loss
• Bleeding
• Ride
• Corrugation
100
0
50
80 - 65
IRI <170
Costs (yd2)
$1.60 – 2.60
Requires Forensics of
Existing Pavement
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Conditions Addressed• Longitudinal cracking
• Transverse cracking
• Block cracking
• Raveling
• Friction Loss
• Bleeding
• Ride
• Corrugation
• Rutting
100
0
50
75 - 60
IRI <190
Costs (yd2)
$8 – $14
Requires Forensics of
Existing Pavement
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Please visit us on the web at www.pavementpreservation.org
Larry Galehouse, P.E., P.S.DirectorNational Center for Pavement Preservation2857 Jolly RoadOkemos, Michigan 48864(517) 432-8220 • Fax: (517) 432-8223email: [email protected]