powerpoint presentation · 2018-05-07 · pavement rating distresses 9 4/12/2018 flexible composite...
TRANSCRIPT
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Pennsylvania Turnpike Pavement Data Collection & Web Application
GIS-T 2018
Kenneth Contrisciane
March 21, 2018
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Presentation Overview
▪ Project Scope
▪ History of Pavement Data Collection at PTC
▪ Data Collection Methodology
▪ Post Processing Workflow
▪ Web-Based Data Viewer Application
▪ Future Enhancements
4/12/20182
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Project Scope
▪ Automated* Pavement Data Collection
• PennDOT Pub 336 Distresses
• Data Summarized to PTC Sections
▪ ROW Panoramic Images
▪ Pavement Skid Testing
▪ Web-Based Data Viewer
4/12/20183
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PennDOT Pub 336 DistressesAll Sections Bituminous Sections Rigid Sections
Rutting Fatigue Cracking Faulted Joints
Pavement Roughness (IRI) Transverse Cracking Broken Slab
Miscellaneous Cracking Transverse Joint Spalling
Edge Deterioration Transverse Cracking
Bituminous Patching Longitudinal Cracking
Raveling / Weathering Longitudinal Joint Spalling
Left Edge Joint Bituminous Patching
Concrete (PCC) Patching
4/12/20184
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Project Scope
▪ Data Collection on Mainline, Extensions & Ramps
• ~1,300 Lane Miles Inventoried
• 492 Ramps
4/12/20185
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History of Pavement Data Collection
▪ Built 1940
• 1st long distance controlled-access highway in US
▪ Pavement Rating Sheets
• Windshield survey
• In-house on biannual basis
• 3 assets rated
• Roadway
• Shoulders
• Median
4/12/20186
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Pavement Rating Sheet
4/12/20187
Road Section
Pavement Type
Roadway
Shoulders
Median
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Pavement Rating Sheet
4/12/20188
Roadway Distresses
Shoulder Distresses
Median Distresses
Spring Rating
Fall Rating
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Pavement Rating Distresses
4/12/20189
Flexible Composite Rigid
Surface Defects
• Polished Aggregate• Potholes• Flushing• Oxidation
• Polished Aggregate• Potholes• Flushing• Oxidation
• Joint Deteroration• Sealant Loss• Settlement• ASR
Surface Deformation
• Rutting• Raveling• Shoving• Corrugation
• Rutting• Raveling• Shoving• Corrugation
• Spalling• Polishing• Delamination
Surface Cracking• Alligator• Shrinkage• Longitudinal
• Alligator• Shrinkage
• Corner Breaks• Longitudinal• Transverse
▪ Distresses Examined Based on Pavement Type
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Data Collection Methodology
▪ Automated* ‘One Van’ Solution
• Laser Crack Measurement System (LCMS)
• Surface distresses
• Pavement imagery
• ROW Panoramic Imagery
• Mobile LiDAR
▪ Pavement Skid Testing
• Subcontracted
4/12/201810
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What is LCMS?
▪ Laser Crack Measurement System (LCMS)
• Mobile-based Automatic* Pavement Distress Detection
• Double Laser Sensor Array
• One Inventory, Many Outputs
• Pavement Management System Tool
4/12/201811
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What Comes Out of LCMS
▪ One Inventory, Many Outputs
• Pavement Management
4/12/201812
• Transverse Profile • Joint Faulting
• Sealed Cracks • Alligator Cracking
• Transverse Cracks • Longitudinal Cracks
• Bleeding • Raveling
• Potholes • Macro Texture
• Rutting • International Roughness Index (IRI)
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What Comes Out of LCMS
▪ One Inventory, Many Outputs
• Safety Features
• Inventory Features
4/12/201813
• Longitudinal Grade • Cross Fall
• Horizontal Curvature • Pavement Markings
• Foreign Object Debris (FOD)
• Pavement Width • Pavement Length
• Pavement Type • GPS Tagging
• Linear Referencing (DMI)
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How LCMS Works▪ Sensors Detect Two Primary Attributes:
• Range: Distance between sensor and ground
• Intensity: Laser intensity (Black or White)
4/12/2018
14
Range
(in mm)
Intensity
(white = 0,
black = 255)
Macro-texture
Rut
Crack
Right LaneMarking
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How LCMS Works
4/12/201815
RANGE INTENSITY
Crack Severity
26.4’
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How LCMS Works
4/12/201816
Excellent 3D
Accuracy
High Acquisition
Rate
Good Lateral Resolution
1 Gigabyte of data per mile
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What Come from LCMS?
4/12/201818
▪ *Not Everything!
▪ Distress Selector Application
• Used to extract additional distresses
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Why LCMS?▪ Speed
• Can operate at normal traffic speeds (up to 60 MPH)
▪ Accuracy• Millimeter level crack detection capability
▪ Repeatability• Consistent and Reliable Results
▪ Day or Nighttime Operation• Efficiency
▪ Safety• Crews not dodging cars
4/12/201819
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Post Processing Workflow
▪ Defined LCMS Database Schema
▪ Existing Processing Tools & Applications
• Field Data Checker
• XML Data Loader
• LiDAR GPS Loader
• Distress Selector
▪ New Workflows
• Pub 336 Distress Export
• Merging of ROW Imagery with Pavement Data
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Data Conflation
▪ LCMS Data & Panoramic Conflated to LRS
• ~262K LCMS Data Points
• ~246K Image Points
4/12/201821
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Uh-Oh…▪ Inconsistencies in Data
• YoY IRI Data
• Disparate Quantities
▪ Why?
4/12/201822
LRS Calibration!Solution: Recalibration
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Lessons Learned
▪ LRS Matters!
▪ Result: PTC LRS Business Process Summit
• 2-Day Meeting on LRS in January 2018
• GIS, Engineers, IT, Consultants
• Define/document workflows for LRS-GIS updates
• Define how “source of truth” data will be maintain across systems
4/12/201823
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4/12/201824
Route Selection
ROW Panoramic
Pavement ViewImage Playback
Mainline View
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4/12/201825
LRS Information
Inset Map
Pub 336 Distress Data
Image Attributes
Ramp View
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4/12/201827
Pavement Image Inset
Future Enhancements
Multi-Year View
Distress Overlay