Structural Pavement Design Guidelines - Toronto
Structural Pavement Design Guidelines
City of Toronto December 14, 2006
S1SP ARA0127-1
Project Scope
To review existing City of Toronto pavement design procedures
Evaluate the existing standards using mechanistic ? empirical methodologies
Consolidate the design standards and procedures of the former municipalities
Develop new pavement structural design guidelines
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Seminar Goals
Why is this study important? How was the study completed? What is the outcome of the study? How will this study affect you?
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Agenda
Study background Brief introduction to pavement design Introduction to the M-E PDG Use of the new pavement design guidelines
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Background
S1SP ARA0127-5
Background
5,200 centreline kilometres of roadways 250 centreline kilometres of laneways Network is over 100 years old
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Functional Classification
Arterial Roads z Primary, Secondary, Local, Major, Minor, etc
Collector Roads z Industrial, Residential
Local z Industrial, Residential
Lanes
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Existing Pavement Types
Two primary pavement types throughout the City: z Asphalt Concrete over Aggregate Base z Asphalt Concrete over Concrete Base
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Existing Pavement Standards
The City of Toronto comprises 7 former cities and municipalities z East York z Etobicoke z Metro z North York z Scarborough z Toronto z York
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Existing Pavement Designs
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Lack of Commonality
Etobicoke Arterial
Scarborough Arterial
z 40 mm HL1
z 40 mm HL1
z 225 mm HL8(HS)
z 125 mm HL8
z 40 mm Granular A
z 50 mm Granular A
z 260 mm Granular B
z 400 mm Granular B
HL1
HL8 (HS)
HL1
HL8
Granular A
Granular A
Granular B
Granular B
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Pavement Design Methodologies
S1SP ARA0127-12
6
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