HomeMy WebLinkAbout030309 PAVEMENT MANAGEMENTPavement Management
Program
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FY 2009
FY 2009
1
Current Reality
Current Reality
The current levels of investment in roadway
The current levels of investment in roadway
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maintenance are not adequate to sustain an appropriate
maintenance are not adequate to sustain an appropriate
level of quality in the inventory and, if uncorrected, will
level of quality in the inventory and, if uncorrected, will
lead to an unaddressed growth in the backlog of
lead to an unaddressed growth in the backlog of
maintenance and repair and consequent deterioration of
maintenance and repair and consequent deterioration of
the roadway system. (City 3 year Strategic Plan)
the roadway system. (City 3 year Strategic Plan)
Incremental $4M increase in each of FY10, 11, 12 and
Incremental $4M increase in each of FY10, 11, 12 and
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13 required in Paving CIP 2-129
13 required in Paving CIP 2-129
Additional $2M required starting in FY10 in Major
Additional $2M required starting in FY10 in Major
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Rehabilitation CIP 2-031
Rehabilitation CIP 2-031
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Outline
Outline
Current Pavement Management Program
Current Pavement Management Program
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Challenges
Challenges
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Aging Infrastructure
Aging Infrastructure
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Growth in materials and construction costs
Growth in materials and construction costs
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Inadequate funding for roadway resurfacing
Inadequate funding for roadway resurfacing
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Interim Measures
Interim Measures
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Description of Service Levels used in Pavement
Description of Service Levels used in Pavement
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Management Program
Management Program
Pavement Management Economics
Pavement Management Economics
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Service Level Deterioration into the Future
Service Level Deterioration into the Future
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Recommendations
Recommendations
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Pavement Asset Management
Pavement Asset Management
The right treatment, at the right time, on the right
The right treatment, at the right time, on the right
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projects
projects
Components of the pavement management system:
Components of the pavement management system:
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Accurate Inventory of all streets
Accurate Inventory of all streets
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Current Condition Assessment within defined LOS
Current Condition Assessment within defined LOS
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Prediction of future condition using established degradation
Prediction of future condition using established degradation
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model
model
Stantec –Engineering Consultant
Stantec –Engineering Consultant
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Municipal Pavement Management Application
Municipal Pavement Management Application
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(MPMA)
(MPMA)
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Current Program
City maintains over 3,500 lane miles of roadways
City maintains over 3,500 lane miles of roadways
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and markings
and markings
Goal is 15-year repaving cycle with interim
Goal is 15-year repaving cycle with interim
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maintenance in order to maintain all streets with
maintenance in order to maintain all streets with
a Pavement Quality Index (PQI) of 7.0 or
a Pavement Quality Index (PQI) of 7.0 or
greater
greater
Current City wide PQI = 7.18 (Declining)
Current City wide PQI = 7.18 (Declining)
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Pavement Program Components
Basic Maintenance for Pavement
Basic Maintenance for Pavement
Graphic #1
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Sealing wear surface to keep out water infiltration
Sealing wear surface to keep out water infiltration
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Milling and recycling to remove top layer of existing,
Milling and recycling to remove top layer of existing,
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deteriorated asphalt
deteriorated asphalt
Paving with new asphalt to restore wear surface and protect
Paving with new asphalt to restore wear surface and protect
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what lies beneath
what lies beneath
Major Pavement Rehabilitation
Major Pavement Rehabilitation
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Done to restore road bed failures
Done to restore road bed failures
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Geotechnical Evaluation to evaluate depth of deterioration
Geotechnical Evaluation to evaluate depth of deterioration
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Milling to remove base/subbase course deteriorated material
Milling to remove base/subbase course deteriorated material
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and repair to subgrade if needed
and repair to subgrade if needed
Paving with new asphalt & base material to required cross-
Paving with new asphalt & base material to required cross-
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section
section
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Current Paving & Rehabilitation
Current Paving & Rehabilitation
CIP Funding Snapshot
CIP Funding Snapshot
FY08-09 Paving CIP Funding$8,160,500
FY08-09 Major Rehab CIP Funding$150,000
FY08 Overlay cycle30 years
Target Overlay cycle15 years
Paving funds required for 15 year cycle$18,000,000
Current overlay backlog$16,500,000
Major Rehabilitation backlog$25,000,000
Major Rehabilitation funds (annual) required$2,000,000
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Challenges To The Pavement
Maintenance Program
Age of the Infrastructure and useful life
Age of the Infrastructure and useful life
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80% of roads over 15 yrs old
80% of roads over 15 yrs old
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46% over 35 yrs old
46% over 35 yrs old
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Deterioration due to age / elements
Deterioration due to age / elements
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20-year useful life without preventative maintenance
20-year useful life without preventative maintenance
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Challenges
Age of RoadwayInfrastructure
2000 to
1990 to Present
2000 (1.1%)
Pre 1960
(29.9%)
(34.5%)
1960 to
1980 to
1970 to
1970
1990
1980
(5.2%)
(17.4%)
(12.0%)
Chart #1
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Challenges
Challenges
Change in Producer Prices for Construction
Change in Producer Prices for Construction
Segments, 2003 -2008 (December 2003 = 100)
Segments, 2003 -2008 (December 2003 = 100)
Nov. 2008
Source: AGC
Chart #2
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Material Cost Increases
(FY2000 –FY2008)
100.0%94%
90.0%
82.0%
80.0%
70.0%
58.0%
60.0%
50.0%
40.0%
34.0%
32.0%
30.0%
21.0%
20.0%
10.0%
0.0%
ReadySand,CementAsphaltSteelLiquid
MixGravel,MixAsphalt
Crushed
Stone
Virginia Department of Transportation
Chart #3
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SERVICE LEVEL DESCRIPTION & RATING
SERVICE LEVEL DESCRIPTION & RATING
Road Pavement
Road Pavement
LOS RatingPQI RangeDescription
Croatan Rd.
PQI = 5.5
A - Excellent10 - 9.0 No distress of any type is evident - new pavement surface
Broad St.
Hopkins Rd.
PQI = 3.4
No distress of any type is evident - Older pavement surface with slight
PQI = 4.5
B - Very Good8.9 - 8.0open texture or weathered appearance with hairline cracking, minimal
pothole patches (<50 SY per Lane-Mile) all in good condition.
Little to no measurable distress is observed. Pavement surface may
exhibit moderately weathered or open texture appearance. Cracks are
C - Good7.9 - 6.0
visible and/or pothole patches (51 SY - 100 SY per Lane-Mile) all in good
condition.
Pavement surface shows severely weathered characteristics and/or
slight to moderate distress. Pothole patches (101 SY - 400 SY per Lane-
D - Fair 5.9 - 5.0
Mile) in fair condition, depressions up to 1" deep, and non load-related
cracking (longitudinal or transverse) may be evident
Pavement surface shows moderate to severe levels of distress including
Photo #5
Photo #8
load related depressions and slippage cracks. Alligator cracks and
E - Poor4.9 - 4.0
Photo #6 numerous pothole patches (401 SY - 600 SY per Lane-Mile) in fair to
poor condition.
Photo #4
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Imminent pavement failure or pavement is severely distressed with large
quantities of distortion, rutting, cracks, (alligator, longitudinal, and
F - Very Poor3.9 - 0.0
transverse), and numerous pothole patching (>601 SY per Lane-Mile) in
fair to poor condition.
Chart #4
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Pavement Condition Degradation
10
Excellent
9
Very
40% Drop in
Good
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Condition
Desired Average Network
in First 14 years
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Condition Rating
Good
Condition Rating: 7
6
Fair
Lowest Minimal Acceptable Rating
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for Individual City Streets: 5
Poor
4
3
40% Drop in
Very
Condition Rating
2
Poor
Next 2 1/2 years
1
0
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Years
Chart #5
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Economics of Pavement Maintenance
Good Roads Cost Less to Maintain
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Excellent
Sealing TreatmentSealing
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Treatment
Very Good
8
Mill & Overlay
Desired Average
Good
7
Network Condition Rating: 7
Condition Rating
6
$50K spent in
Fair
Lowest Minimal
5
Acceptable Rating
Maintenance at this
Poor
point
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3
Would cost $250K
Very
Poor
in major
2
rehabilitation
1
0
Photo #10
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Photo #11
Years
Photo #12
Chart #6
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Interim Measures
Interim Measures
Increased use of Surface Sealants
Increased use of Surface Sealants
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Limited by both Aesthetics and Recycling of Asphalt Millings
Limited by both Aesthetics and Recycling of Asphalt Millings
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Use of Thin Overlays
Use of Thin Overlays
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Milling of Existing Asphalt and use Standard Surface mixes
Milling of Existing Asphalt and use Standard Surface mixes
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up to 1-inch in compacted depth instead of 1½-inch. -
up to 1-inch in compacted depth instead of 1½-inch. -
Costs less.
Costs less.
Economical for low impact streets in subdivisions
Economical for low impact streets in subdivisions
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Extend the City’s Paving Dollars
Extend the City’s Paving Dollars
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Adds some life to the pavement.
Adds some life to the pavement.
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Only useful for low volume, residential streets, not on
Only useful for low volume, residential streets, not on
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arterials.
arterials.
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Paving Cycle History
Cycle Target is 15 years
3,50035
30
3,00030
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23
2,50025
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Years in Paving Cycle
17
17
2,00020
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Lane Miles
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15
1,50015
1,00010
5005
00
FY 00FY 01FY 02FY 03FY 04FY 05FY 06FY 07FY 08
Arterial Lane MilesCollector/Local Lane Miles
Pavement Cycle in Years
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Chart #7
Level of Service Projections
Level of Service Projections
Municipal Pavement Management Application
Municipal Pavement Management Application
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Compiles:
Compiles:
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Current inventory data
Current inventory data
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Condition Assessment Data
Condition Assessment Data
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Funding
Funding
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Optimizes Funds to:
Optimizes Funds to:
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Right pavement treatment
Right pavement treatment
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Timeliness
Timeliness
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Right Street/Roadway
Right Street/Roadway
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Pavement Degradation Model
Pavement Degradation Model
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Projects future maintenance requirement
Projects future maintenance requirement
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Predicts condition in terms of Levels of Service
Predicts condition in terms of Levels of Service
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Current Funding Impact on
Current Funding Impact on
Pavement PQI as % of Inventory
Pavement PQI as % of Inventory
Very Good
100%
Good
Fair
90%
Poor
80%
70%
Percentage of Inventory
60%
50%
50% of Roadways in
40%
Inventory are in
Poor ConditionCost
30%
to Rehabilitate
20%
$430M
10%
0%
FY2008FY2009FY2010FY2011FY2012FY2013FY2014FY2015FY2016FY2017FY2018FY2019FY2020
$8.1M$8.0M$7.9M$8.2M$8.2M$8.2M$8.5M$8.5M$8.5M$8.5M$8.7M$8.7M$8.7M
Fiscal Years
Chart #8
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Recommended Funding Impact on
Recommended Funding Impact on
Pavement PQI as % of Inventory
Pavement PQI as % of Inventory
Very Good
100%
Good
90%
Fair
Poor
80%
70%
Percentage of Inventory
60%
50%
40%
30%
20%
10%
0%
FY 2008FY 2009FY 2010 FY 2011FY 2012FY 2013FY 2014FY 2015FY 2016FY 2017FY 2018FY 2019FY 2020
$8.1M$8.0M$12M$16M$20M$24M$24M$24M$22M$22M$20M$20M$20M
Fiscal Years
Chart #9
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Current Funding Impact on
Current Funding Impact on
Pavement PQI as % of Inventory
Pavement PQI as % of Inventory
Very Good
100%
Good
Fair
90%
Poor
80%
70%
Percentage of Inventory
60%
50%
40%
30%
20%
10%
0%
FY2008FY2009FY2010FY2011FY2012FY2013FY2014FY2015FY2016FY2017FY2018FY2019FY2020
$8.1M$8.0M$7.9M$8.2M$8.2M$8.2M$8.5M$8.5M$8.5M$8.5M$8.7M$8.7M$8.7M
Fiscal Years
Chart #8
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2010
Paving Backlog with
current funding.
Map #1
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2012
Paving Backlog with
current funding.
Map #2
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2014
Paving Backlog with
current funding.
Map #3
23
2016
Paving Backlog with
current funding.
Map #4
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2018
Paving Backlog with
current funding.
Map #5
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2020
Paving Backlog with
current funding.
Good Roads Cost
Less to Maintain
Map #6
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Summary
Summary
Roadway inventory is not sustainable with current levels
Roadway inventory is not sustainable with current levels
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of funding and will lead to:
of funding and will lead to:
Advanced deterioration
Advanced deterioration
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Compounding increase of major reconstruction
Compounding increase of major reconstruction
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Maintain on time, the cost of deferral is not affordable.
Maintain on time, the cost of deferral is not affordable.
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Major Rehabilitation is 5 times the cost of a timely pavement
Major Rehabilitation is 5 times the cost of a timely pavement
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overlay.
overlay.
Stewardship means timely maintenance
Stewardship means timely maintenance
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Pavements degrade predictably
Pavements degrade predictably
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Sustainment requires a long term view
Sustainment requires a long term view
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Timely, proactive approach.
Timely, proactive approach.
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Summary
Summary
In Subdivision Streets, Reduce Full Depth Overlays
In Subdivision Streets, Reduce Full Depth Overlays
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in Favor of…
in Favor of…
Thin Overlays
Thin Overlays
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Sand Sealing
Sand Sealing
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Crack Sealing / Filling
Crack Sealing / Filling
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Focus Profiling and Full Depth Paving on Arterials
Focus Profiling and Full Depth Paving on Arterials
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Seek Additional Funding
Seek Additional Funding
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Incremental $4M increase in each of FY10, 11, 12 and 13
Incremental $4M increase in each of FY10, 11, 12 and 13
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required in Paving CIP 2-129 (Pavement Maintenance
required in Paving CIP 2-129 (Pavement Maintenance
Program Phase II)
Program Phase II)
Additional $2M required starting in FY10 in Major
Additional $2M required starting in FY10 in Major
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Rehabilitation CIP 2-031
Rehabilitation CIP 2-031
28
Questions?
Questions?
Photo #13
Photo #14
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