City of Vancouver
Pavement Preservation Toolbox
2017 RMWPPP Meeting October 24, 2017 Ryan Miles, Street Operations Program Manager City of Vancouver 10/30/2017 8:39 AM
Vancouver’s Pavement Network
• 580+ centerline miles (1,800 lane miles) • Pavements segmented at intersections • Over 7,000 segments in the system - Length, width, number of lanes, functional classification, surface type, etc.
• Multiple surface types City of Vancouver Preservation Toolbox - 2
Pavement Management System
• Have used multiple pavement management
systems: Centerline, Hansen/Infor, StreetSaver® • Condition assessed every two years • Treatment selection based on PCI and type of distresses present
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2017 Pavement Management Program
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$10.4M total program budget 169 curb ramp corners 23 lane miles of rehabilitation work 115 lane miles of preservation work
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Rehabilitation Treatments
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Mill and inlay Traditional overlays Pulverize and pave No full reconstruction
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City Preservation Tools
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Slurry Seals Microsurfacing Chip Seals Cape Seals Other Treatments City of Vancouver Preservation Toolbox - 7
Slurry Seals
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Been using since the late 90’s Residential streets only Use on PCI > 70 8 – 10 year life
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Microsurfacing
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Using since 2009 Type 2 and Type 3 Rock Arterials and collectors Continuous and truck mounted applications
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Microsurfacing (cont’d)
• PCI > 70 –
Can go lower but need to do more prep
• 7-8 year life (so far) • Night work
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Chip Seals
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Started using in 2011 Traditional emulsion chip seal 3/8” Asphalt rubber chip seals ¼” Chip seals (new in 2017) Fog seal all types
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Chip Seals (cont’d)
• PCI > 55 • Emulsion chip: 6+ years • AR Chips performing well to
date: 4+ years • ¼” Chip seals: too soon to tell
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Chip Seals (cont’d)
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Cape Seals
• Started using in 2012 • Chip with either slurry or microsurfacing • PCI > 50 • Good performance to date: 5+ years (residential) City of Vancouver Preservation Toolbox - 14
Cape Seals (cont’d)
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Other Treatments
• Double chip seals • Micro-chip-micro • Bonded wearing course (future)
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Other Treatments
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Questions and Discussion
• Ryan Miles, Street Operations Program Manager •
[email protected] • 360-487-7708
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