Pavement Management Systems Overview - CAIT · A Pavement Management System (PMS) comprises...

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