City of Dallas City of Dallas Asset Management Through Pavement Management December 01, 2011
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City of DallasCity of DallasAsset Management
ThroughPavement Management
December 01, 2011
DefinitionsDefinitions
• PCI - Pavement Condition Index• IRI - International Ride Index• SSI – Surface Systems and Instruments
Previous Collection MethodPrevious Collection Method
• All Visual - Labor Intensive, Subjective• Complete Inspection Form – Every Street
& Alley• Clerical Staff Input Data – Every Street &
Alley• Does Not Support Budget Forecasting• Does Not Support Pavement Modeling• Generate Report Every Street & Alley
Previous Collection MethodPrevious Collection Method
Data Collection VanData Collection VanSideVideo
RearVideo
Crack Scope
Distance Measuring InstrumentGround
Penetrating Radar
ForwardVideo
Mid-Mount Profile Lasers
InertialNavigation
Human Observations
Data FlowData FlowPavement Management System
Data Collection Post-Processing Data Analysis
Enter-Road-InfoSSI Profiler
Crack ScopeGSSI Radan 6.5
Extract, Transform,Load
GBA Master Seriesaka Lucity
Data CollectionData Collection• Both Electronic Data and Human Input Is
Collected• Based on Numerical Values• Reproducible Data• More Extensive Data Collection • More Accurate Representation of
Pavements• Objective & Repeatable• Electronically Stored Data
EnterRoadInfoEnterRoadInfo
SSI ProfilerSSI Profiler
Crack ScopeCrack Scope
Crack ScopeCrack Scope
Measure LengthAnd Width of
Cracks
Length
Width
Ground Penetrating RadarGround Penetrating Radar
Raw Data
Processed Data
Processed Data
Ground Penetrating RadarGround Penetrating Radar
6.5Average
3.1663.673Automatic5.8Layer 121
3.0594.055Automatic6.2Layer 120
3.1663.953Automatic6.3Layer 119
3.1234.165Automatic6.5Layer 118
3.084.098Automatic6.3Layer 117
3.1233.862Automatic6.0Layer 116
3.1234.091Automatic6.4Layer 115
3.1664.311Automatic6.8Layer 114
3.2954.744Automatic7.8Layer 113
3.2094.331Automatic7.0Layer 112
3.234.157Automatic6.7Layer 111
t(ns)v(in/ns)Vel. Typez(in)Layer 1Scan#
GradingGrading
ASTM D6433 - 09 Standard Practice for Roads and Parking Lots Pavement Condition Index Surveys
0 10 20 30 40 50 60 70 80 90 100
Pavement Conditon Index (PCI)
A
B
C
D
E
Cond
ition
Rat
ing
Excellent
Good
Fair
Poor
Failed
GPS, GIS & Inertial NavigationGPS, GIS & Inertial Navigation
Cosgro
ve D
r
Kenwhite Dr
Claybro
ok Dr
Tabor Dr
Location
Manual Entry & QA/QCManual Entry & QA/QC
TouchScreen
DistressKeypad
Data AnalysisData Analysis• More Accurate, Objective Representation
of Pavement Condition• Based on ASTM International Standards• Pavement Modeling Support• Budget Forecasting Support• GIS Integration
Data Analysis Data Analysis -- SQLSQL
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