pavement management systems overview - cait · a pavement management system (pms) comprises...
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AU.S.DepartmentofTransportationUniversityTransportationCenter
PavementManagementSystemsOverview
PavementResourceProgram(PRP)
AU.S.DepartmentofTransportationUniversityTransportationCenter
NJDOT:6%2,321miles
Authorities:1%413miles
County:18%6,642miles
Municipal:75%28,219milesSLDMay2009
RoadsmanagedbyNJDOTandtheAuthorities,althoughtheymakeuponly7%oftotalcenterlinemiles,carrymorethan50%ofNJtraffic
NJRoadNetworkMileage&Percentages>>
Statewidetotal:37,595centerlinemiles
ElementsofPavementEngineering>>
PavementMaterials Classification,qualityassurancetesting(specifications),materialdesign
PavementDesign Designofstructurallayersfornewpavementsandpavementrehabilitation
Assessin‐situpavementmaterialpropertiesandlayerthickness
PavementConstruction Constructionpracticesofnewpavementsandpavementrehabilitationincludingspecificationdevelopmentandqualityassurance
PavementManagement
Monitoringpost‐constructioncondition;timingofpreventivemaintenanceandrehabilitationtreatments;andeconomicanalysisofalternatives
PavementResearch Researchtoimprovealloftheabove
APavementManagementSystem(PMS)comprisesestablishedprocedurestocollect,analyze,andmaintainquantitativedataonaroadnetwork
Itprovidesobjectiveinformationandusefuldataforanalysissothatroadmanagerscanmakemakemoreconsistent,cost‐effective,anddefensibledecisions
Itcanprovidethebasisforaninformedunderstandingofthepossibleconsequencesofalternativedecisions
APMSdoesNOTmakedecisions,PEOPLEDO!
PMSDescription&Objectives>>
Pavementsdeteriorateduetotraffic/use,environment,andaging
Poorroadconditionsincreasevehicleownercosts$325–$700annually(vehicledamage,tirewear,etc.) Nationalaverageis$333permotoristtotaling$67billionperyear
Poorroadconditionsareacontributingfactorinmanyroadwayaccidents Accordingtosomestudiesasmuchas30%ofcrasheseachyear
Goodroadscosteveryoneless… Ifmaintainedatareasonablelevelofservice Iftheyreceiveproperpreventativemaintenance
ImportanceofPavementManagement>>
PMSDATA Inventory Condition:PavementEvaluation History:InitialConstruction,RoutineMaintenance,
PreventativeMaintenance,Rehabilitation,Reconstruction Traffic Costs
MODELING&ANALYSIS ServiceabilityRating PerformancePredictions EconomicAnalyses;Budgeting/Programming
DATAMANAGEMENT RelationalDatabases ReportGeneration
PMSSubsystems>>
PavementManagementSystems
PMSDataCollection
PavementInventoryincludes:
Roadnames
Pavementtypes
Lengthsandwidths Jurisdiction(e.g.,county,municipality)
Legislativedistrict …etc.
PMSDataCollection>>
PavementConditionEvaluationincludes: Pavementroughnessorridequality
Surfacedistress Rutting Skidresistance
PMSDataCollection>>
PavementConditionSurveyEquipment>>
SkidTrailerMeasurespavement
friction•Relatestosafety
GroundPenetratingRadar(GPR)Measureslayerthickness•Relates
toperformance/wear
ProfilerMeasuresroughness,distress,rutting,noise,cracking•Relatestoquality/performance
FallingWeightDeflectometer(FWD)Measuresstructuralcapacity•Relatestoservice/durability
PavementManagementSystems
PerformanceAnalysis&Models
PavementConditionSurveys>>
Collecteddata PavementIndicesApplied
Pavementwheelpathprofile RideQualityIndex(IRI)
Pavementsurfacedistress SurfaceDistressIndex
Rutting AveragePavementRutDepth
Deflection StructuralCapacityIndex
1.Gatherdataonridequality,surfacedistress,andrutting2.Applyindicesthatconvertdatatoasinglevalueor“grade”foranalysisandcomparison
PavementPerformanceModelExample>>
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
2000 2002 2004 2006 2008 2010 2012 2014 2016 2018 2020
DistressInde
x
Years
PredictionModel
DefaultPredictionModel
Trigger
Current Time
RemainingServiceLife
PavementManagementSystems
EconomicAnalysis&Reporting
Time
Cond
ition
PavementRehabilitation
PavementPreservation
PavementReconstruction
DoNothing
Deteriorationovertimeandcosttorepair
EffectofTreatmentTimingonCosts>>
$80.00/sqyd
New
Good
Fair
Poor
TreatmentTypesandCosts>>
Slurryseals $14,080
Microsurfacing $17,600
High‐performancethinoverlays $45,760
Minor(functional):mill2in.andoverlay2in. $107,430
Major(structuralrehab):mill2in.andoverlay>2in. $154,106
Partial $422,400
Full $689,920
PavementPreservation>>
PointofTreatment
IncreasingAgeorTrafficLoads
Pavemen
tCo
nditionInde
x
PerformancePredictionModel
BenefitorEffectiveness(Areaunderthecurve)
PredictedPerformance
TriggerLimit
ConditionIncrease
LifeExtension
ExaminingTreatmentOptions>>
Goodcondition
Poorcondition
Policydecisionscanbebasedontheaverageprojectedconditionatgivenbudgetlevelsforasingleassetorfortheentirenetwork
NetworkPerformanceBudgetScenarios
DonothingSpend$100millionSpend$300million
ExampleNetworkPerformanceScenario>>
Good
Poor
Fromstatewidetomunicipallevel,aPMScanimprovedecisionmaking
CAITiscurrentlyhelpingthefollowinggroupsdeveloporimprovetheirPMS:
NJDOT MercerCounty
HowellTownship RutgersUniversity
PMSUsefulatAnyLevel>>
Questions?
cait.rutgers.edu/prp