ROADS INFRASTRUCTURE RENEWAL IN THE CITY …...ROADS INFRASTRUCTURE RENEWAL IN THE CITY OF CALGARY...
Transcript of ROADS INFRASTRUCTURE RENEWAL IN THE CITY …...ROADS INFRASTRUCTURE RENEWAL IN THE CITY OF CALGARY...
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ROADS INFRASTRUCTURE RENEWAL IN THE CITY OF
CALGARY
The Western Canada Pavement Workshop2011 Edition
Calgary
Ryan Jestin, P.EngFebruary 1, 2011
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Outline
Pavement/Road Inventory/History
Pavement Management System
–Network Level
–Project Level
Innovation
Summary
Questions
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Pavement Inventory
The City of Calgary began tracking its paved road inventory over 100 years ago
We currently have:
–4,600+ centreline kilometres of paved roads
–14,600+ lane-kilometres of paved roads
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Some Roads are Past Service Life
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Road Repairs
We Apply
The right treatment
For the right road
At the right time
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How Do We Achieve This?
Pavement Management System (PMS)
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Pavement Management System
According to the TAC Pavement Design and
Management Guide, the purpose of a Pavement
Management System is to:
Achieve the best value possible for the available public funds and to provide safe, comfortable and economic transportation.
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The City of Calgary adopted a pavement management system called the Municipal Pavement Management Application (MPMA) in 1980’s
Pavement Management System
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Pavement Management SystemD
ata
base
Main
ten
an
ce
Seasonal Pavement
Attribute Data
Rehabilitation and Budget Optimization
Analysis
Budget andEconomic Data
Periodic Review/Update of Performance &
Analysis Models and Parameters
New/UpdatedStreet Sections
Develop Rehabilitation Program
Need Year Analysis
Performance Predication
Analysis
Update Database
Present Status Analysis
MPMA Pavement Database
Construction
New/UpdatedData
Reh
ab
ilit
ati
on
P
ro
gram
Field Survey Data
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Sample output from the MPMA – Performance Index
Pavement Management System
GOODFAIRPOORFAIL
Performance Index
VERY GOOD
0.1 – 2.0 2.1 – 4.0 4.1 – 6.0 6.1 – 8.0 8.1 – 10.0
0.7%
7.1%
33.6%
41.5%
16.0%
0
400
800
1200
1600
2000
Km
Pavement Quality Index (PQI)
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Sample output from the MPMA– Roads below the trigger
PQI values
Pavement Management SystemN
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Pavement Management System
Sample output from the MPMA –Annual Budget
Optimization
$30M /yr spent $40M/yr spent$20M/yr spent$0M /yr spent
Network Condition Over Time
% U
naccep
tab
le C
on
dit
ion
Time
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Project Level Pavement Management
Tier 1: No structural damage - crack sealing, micro surfacing or mill & fill will preserve the pavement
Tier 2: Moderate surface and structural damage - localized base repair and surface overlay are required
Tier 3: Significant surface and structural damage – pavement structure reconstruction and full investigation through a consultant are required
Pavement Management System
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Pavement Life Cycle
Life Cycle Cost Analysis (LCCA)
Maximum Potential Life
Conditio
n
Minimum Acceptable
Effective Physical Life
Time
Refu
rb
ish
Refu
rb
ish
Refu
rb
ish
Rep
lace
Effective Economic Life
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Pavement Life Cycle
Sustainable Practice Triple Bottom-Line
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Innovation
The City of Calgary strives to be a leader in innovation
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Innovation – Warm Mix Asphalt
Calgary was the first city in Canada to use Warm
Mix Asphalt
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Innovation – Asphalt Rubber
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Innovation – Rubber Sidewalk
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Innovation – Stone Matrix Asphalt
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Innovation – Superpave Asphalt
Superpave Asphalt has been used on Calgary’sArterial Roads for 15 years
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Innovation – Concrete Overlay and
DuraTough
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Innovation – Paving Stone Pavement
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Innovation – Porous Pavement
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Innovation – Gravel Road Stabilization
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Innovation – Pavement Smoothness
Specifications & PG Binder Specifications
Calgary is:
The first Canadian municipality to implement pavement smoothness specifications
One of the first Canadian municipalities to implement Performance Graded Asphalt (PG) binder specifications
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Innovation
Other examples of roadway innovation employed at The City of Calgary include:
Full Depth Reclamation along Highway 22x in 2006
Cold In-place Recycling – 2011 (144 Avenue NW)
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Challenges & Opportunities
Paving Stone Pavement (Opportunity with new development)
Sink Hole from Water Main Break(Challenge from an unexpected situation)
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Summary
The City of Calgary:
Maintains 14,600+ lane-kilometres of roads
Manages the pavement asset through MPMA
Evaluates different road repair alternatives
through LCCA
Renews road infrastructure using innovative
solutions that address the challenges and
opportunities we face
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CITY OF CALGARY HAS
14,000 Centreline Kilometres
46,000 Lane-Kilometres
of roads
Adding new roads each year
The history goes back to more than 100 years
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Questions