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A R i f th P tA R i f th P tA Review of the Pavement A Review of the Pavement Management System (PMS) of Management System (PMS) of g y ( )g y ( )

the State of Louisianathe State of Louisiana

Mohammad Jamal Khattak, Ph.D., P.E.Mohammad Jamal Khattak, Ph.D., P.E.J k, ,J k, ,University of Louisiana at LafayetteUniversity of Louisiana at Lafayette

LayoutLayoutLayoutLayout

Pavement Management System (PMS)Pavement Management System (PMS)PMS Study: LTRCPMS Study: LTRC--0404--2P2PyyLADOTD PMS DatabaseLADOTD PMS DatabaseR s lts f R i /S rR s lts f R i /S rResults of Review/SurveyResults of Review/SurveyFindings and RecommendationsFindings and Recommendations

Pavement Management Systems Pavement Management Systems g yg y(PMS)(PMS)

Rational ProceduresRational Procedures

that providethat provide optimum pavement strategiesoptimum pavement strategiesbased onbased on predicted pavementpredicted pavement performanceperformancebased onbased on predicted pavementpredicted pavement performanceperformanceincorporating feedback regarding the various incorporating feedback regarding the various

attributes criteria andattributes criteria andattributes, criteria, andattributes, criteria, andconstraints involvedconstraints involved

PMS ComponentsPMS Componentspp

PMSPMSPMSPMS

P j L l

DATA

Network Level

P i

Project Level

DesignDATA BASE

ProgrammingPlanningBudget

DesignConstructionMaintenance

Engineering Applications

BudgetRehabilitation

Engineering ApplicationsResearch-Special Studies

Control SectionsProject HistoryPavement Inventory

Truck Load DataEnvironmental

Skid/Friction Distress Agency Cost

PMSPMSPMS Database Based on

Referencing

Pavement Condition

Data Cost Data

PMSPMSDatabase ComponentsDatabase Components

Deflection Roughness User’s Cost

pp

Special BridgesResearch

DataOthersAccidents

PMS StudyPMS Study--LTRC 04LTRC 04--2P2PPMS StudyPMS Study LTRC 04LTRC 04 2P2P

TitleTitleTitleTitleDevelopment of Uniform Sections for PMS Development of Uniform Sections for PMS Inventory and Applications (2006Inventory and Applications (2006--2009)2009)Inventory and Applications (2006Inventory and Applications (2006 2009)2009)

Principal Investigators Mohammad Jamal Khattak Ph D P E (PI)Mohammad Jamal Khattak Ph D P E (PI)Mohammad Jamal Khattak, Ph.D., P.E. (PI)Mohammad Jamal Khattak, Ph.D., P.E. (PI)Xiaoduan Sun, Ph.D., P.E., (CoXiaoduan Sun, Ph.D., P.E., (Co--PI)PI)University of Louisiana at LafayetteUniversity of Louisiana at Lafayettey f f yy f f yGilbert Y. Baladi, Ph.D., P.E. (CoGilbert Y. Baladi, Ph.D., P.E. (Co--PI)PI)Michigan State UniversityMichigan State University


ObjectivesObjectivesObjectivesObjectivesCost effective way to incorporate the PMS into Cost effective way to incorporate the PMS into LA DOTD’s regular operation LA DOTD’s regular operation Make the information in the PMS usable for Make the information in the PMS usable for engineers within the department engineers within the department


ScopeScopeppPhasePhase--II

Review and assessment of the current LADOTD’sReview and assessment of the current LADOTD’sReview and assessment of the current LADOTD s Review and assessment of the current LADOTD s PMSPMSIdentification of the PMS users’ needsIdentification of the PMS users’ needsIdentification of the PMS users needs Identification of the PMS users needs Compatibility of the location reference system Compatibility of the location reference system

used by the PMSused by the PMSused by the PMS used by the PMS used by other units within the LADOTD used by other units within the LADOTD


ScopeScopeVarious components of the PMS operations Various components of the PMS operations including:including:gg

frequency of data collection, methods used for data frequency of data collection, methods used for data digitization, data processing time digitization, data processing time types of reports that can be generated, types of reports that can be generated, degree to which the pavement life extended by pavement degree to which the pavement life extended by pavement preservation action is being trackedpreservation action is being trackedpreservation action is being tracked, preservation action is being tracked, degree to which the condition data assist the users in degree to which the condition data assist the users in identifying the causes of distress.identifying the causes of distress.Etc.Etc.


ScopeScopePhasePhase--IIII

Evaluation of pavement performance modelsEvaluation of pavement performance modelsEvaluation of pavement performance models Evaluation of pavement performance models Evaluation and calibration based on the available Evaluation and calibration based on the available distress data.distress data.

Evaluation of treatment modelsEvaluation of treatment modelsTreatment PerformanceTreatment PerformanceTreatment Selection Treatment Selection

LADOTD PMS DataLADOTD PMS DataLADOTD PMS DataLADOTD PMS Data

Highway Functional ClassificationHighway Functional Classificationg yg y

100 000

Functional Classification

10,000

100,000

les

All State Hwy Parish Hwy City Hwy

100

1,000

r-La

ne-M

i

10

100

Cen

te

1Interstate Freeway &

ExpresswayPrincipalArterial

Minor Arterial Collector Local

Network System CategoriesNetwork System Categoriesy gy g

Highway System Catagories

16,634

20,000

15,000

ne M

iles

State Highway

Rural Highway System

7,043 7,148

10,000

Cen

ter-

Lan

National Highway

Highway System

8931,550

5,000g y

System

0NHS- Intersate NHS- Others SHS RHS Total

Location Reference SystemLocation Reference SystemLocation Reference SystemLocation Reference System

Control Section LogControl Section Log--mile (CSLM)mile (CSLM)Control Section LogControl Section Log mile (CSLM)mile (CSLM)Route Mile Post (RMP)Route Mile Post (RMP)R Mil P i (RMPT)R Mil P i (RMPT)Route Mile Point (RMPT)Route Mile Point (RMPT)Station numbers or Chainage (STA)Station numbers or Chainage (STA)Global Positioning System (GPS)Global Positioning System (GPS)

Linkage of CSLM, RMP & GPSLinkage of CSLM, RMP & GPS

Linkage of CSLM, RMP & GPSLinkage of CSLM, RMP & GPSLinkage of CSLM, RMP & GPSLinkage of CSLM, RMP & GPS

Limitation of the Computer ProgramLimitation of the Computer ProgramLimitation of the Computer ProgramLimitation of the Computer ProgramThe linkage for RMPT and STA can not be The linkage for RMPT and STA can not be accomplished using the computer programaccomplished using the computer programaccomplished using the computer program.accomplished using the computer program.The linkage does not distinguish between the The linkage does not distinguish between the primary and secondary routes. Whenever two routes primary and secondary routes. Whenever two routes p y d s c d y s W v w sp y d s c d y s W v w soverlaps, the program reflects only the primary overlaps, the program reflects only the primary route.route.The program takes into account only one direction The program takes into account only one direction of the travel.of the travel.

PMSPMS--Distress SurveyDistress SurveyPMSPMS Distress SurveyDistress Survey

The pavement network is surveyed once every The pavement network is surveyed once every two years (ARAN).two years (ARAN).

Th LADOTD ll t h (IRI) tTh LADOTD ll t h (IRI) tThe LADOTD collects roughness (IRI), rut, The LADOTD collects roughness (IRI), rut, cracking, patching, and faulting data. cracking, patching, and faulting data.

Data is reported based on a Reference Location Data is reported based on a Reference Location System (control sections log miles, GPS). System (control sections log miles, GPS). y ( g , )y ( g , )

The digital images and distress data (VISIDATA) The digital images and distress data (VISIDATA) have been installed in each district. have been installed in each district.

PMSPMS--Distress SurveyDistress SurveyPMSPMS Distress SurveyDistress Survey

The data are collected continuously, and The data are collected continuously, and reported by reported by 1/101/10thth milemile segments.segments.p yp y // gg

Th LADOTD s s dTIMSTh LADOTD s s dTIMS (Total(TotalThe LADOTD uses dTIMS The LADOTD uses dTIMS (Total (Total Infrastructure Management System)Infrastructure Management System) to: to:

l h di i dl h di i danalyze the pavement condition data analyze the pavement condition data model the pavement rate of deterioration. model the pavement rate of deterioration.

TABLE 1: Inventory Data for Pavement Design & Materials.

Does State Collect?

Data Sources

No. Data Category StateNo.

Yes No State PMS Other

1 Pavement type (e.g., HMA, JPCP, JRCP, CRCP, composite (HMA/PCC)

X

X

Surface Type Log, NEEDS

X S f T L2 Pavement width X Surface Type Log, NEEDS

3 Shoulder type (e.g., turf, granular, tied PCC non-tied PCC, HMA)

X

Surface Type Log, NEEDS

X Surface Type Log4 Shoulder width X Surface Type Log, NEEDS

5 Number of lanes in each direction X Surface Type Log, NEEDS

Layer thicknesses (i e all layers X MATT FILE6 Layer thicknesses (i.e., all layers above the subgrade)

X MATT FILE

7 Joint spacing (for jointed PCC pavements)

X Surface Type Log, NEEDS

8 Transverse joint load transfer X MATT FILE8 Transverse joint load transfer X MATT FILE

9 Subgrade type and material classification (i.e., AASHTO, UCS, or others)

X MATT FILE

10 Layer material properties (e.g., strength, mi constit ents gradation etc )

X MATT FILE mix constituents, gradation, etc.)

11 Drainage (e.g., presence of drainable or permeable layer, edge drains, etc.)

X Surface Type Log, NEEDS

Condition Data for Network Level Condition Data for Network Level (Fl ibl d C it )(Fl ibl d C it )(Flexible and Composite)(Flexible and Composite)

Frequency Data Source Pavement Di /C di i I diPavement

Type Distress/Condition IndicesYearly Every

2 years PMS Other

Rutting X X Fatigue/alligator cracking X XFatigue/alligator cracking X XLongitudinal cracking in the wheel path* X Transverse cracking X X IRI X X PSR*** X X

Flexible HMA

PSR*** X XSurface friction (FN or skid number) # X Other specify (Patching, Rutting) X X

Longitudinal cracking X XLongitudinal cracking X XTransverse cracking X X IRI X X PSR*** X X S f f i ti (FN kid b )# X

Composite (HMA/PCC)

Surface friction (FN or skid number)# XOther specify (Patching, Rutting) X X

Condition Data for Network Level Condition Data for Network Level (Ri id JPCP/JRCP/CRCP)(Ri id JPCP/JRCP/CRCP)(Rigid: JPCP/JRCP/CRCP)(Rigid: JPCP/JRCP/CRCP)

Frequency Data Source Pavement Distress/Condition Indices EType Distress/Condition IndicesYearly Every

2 years PMS Other

Transverse joint faulting X X Transverse cracking X XgLongitudinal cracking X X Transverse joint spalling X IRI X X PSR*** X X

Rigid JPCP/JRCP

PSR*** X XSurface friction (FN or skid number) # X Other specify (Patching) X X Punchouts X XPunchouts X XLongitudinal cracking X X IRI X X PSR*** X X

Rigid CRCP

Surface friction (FN or skid number) # XOther specify (Patching) X

Data Analysis and ReportsData Analysis and ReportsData Analysis and ReportsData Analysis and Reports

Index Scale (I)Index Scale (I)Index Scale (I)Index Scale (I)0 to 1000 to 100 (100 being perfect)(100 being perfect)Calculated based on deduct pointsCalculated based on deduct pointspp

Deduct Points (DP)Deduct Points (DP)Type of distressType of distressypypExtent of the distressExtent of the distressSeverity level Severity level

I= 100I= 100-- Σ(Σ(DP)DP)

Low severityLow severityMedium severityMedium severityHigh se eritHigh se eritHigh severityHigh severity


Deduct Points (DP)Deduct Points (DP)Deduct Points (DP)Deduct Points (DP)Deduct point policy was established in 1992 or Deduct point policy was established in 1992 or earlier No study has been conducted to calibrateearlier No study has been conducted to calibrateearlier. No study has been conducted to calibrate earlier. No study has been conducted to calibrate and modify the deduct points. and modify the deduct points.

TriggersTriggersTriggersTriggersSeveral threshold values are established by the Several threshold values are established by the LADOTD to triggers certainLADOTD to triggers certain maintenancemaintenance ororLADOTD to triggers certain LADOTD to triggers certain maintenance maintenance or or rehabilitationrehabilitation actions based on distress index.actions based on distress index.


Regression based models for distress indicesRegression based models for distress indicesRegression based models for distress indices Regression based models for distress indices as function of Age as function of Age

Flexible Composite JCP CRCPFlexible, Composite, JCP, CRCPHighway classification of IHS, NHS, SHS and RHS.

T f ti f tiT f ti f tiTransformation functionsTransformation functionsRoughness Index: Polynomial functionAll indices for CRCP: Power functionRutting Index: Exponential functionAll other: Linear function

Control Section

207-06(IRI(IRI--NHS) NHS)

90

100

70

80

Rehabilitation Threshold

50

60

Inde

x

LADOTD'S ModelCalibrated

Model

LADOTD Model

Calibrated

30

40 Model Model

Roughness Index (RI)= 100 - DP

Model

0

10

20

( )SASA tt ⋅−⋅−= 9694.14695.0100 RI 2

g

00 2 4 6 8 10 12 14 16 18

Surface Age

Control Section

454-03(IRI(IRI--IHS) IHS)

90

100

70

80

50

60

RI I

ndex

Calibrated Model

LADOTD'S Model

( )tt ⋅−⋅−= 2484016560100IRI 2

30

40IR ( )SASA tt ⋅⋅= 2484.01656.0100IRI

0

10

20

00 2 4 6 8 10 12

Surface Age (years)

Network Network & &

ProjectProjectProject Project Level Level

ReportsReports

Index Values & Rec. TreatmentsIndex Values & Rec. Treatments

DIST ROUTE CONT-ROL

DI-RECT-

ION

BEG_LOG

LENGTH

PAVE-TYPE

TREAT-MENT SHS RUFF AVG_I

RI RUT R_ AVG ALCR LONG TRAN RNDM PTCH FSECTI

ONPERF INDEX RSL

Minor

03 LA0014 055-07 1 8.95 0.46Jointed Concrete

Minor Rehabili-

tation SHS 74 % 169 N/A % -1 N/A % 99 % 99 % N/A % 99 %055-07-1-08.95 84 % 12

03 LA0014 055 07 1 9 81 0 25Jointed Concrete

Minor Rehabili-

tation SHS 72 % 181 N/A % 1 N/A % 83 % 99 % N/A % 99 %055-07-1 09 81 78 % 1103 LA0014 055-07 1 9.81 0.25 Concrete tation SHS 72 % 181 N/A % -1 N/A % 83 % 99 % N/A % 99 % 1-09.81 78 % 11

03 LA0014 055-07 2 6.17 2.78Composite SHS 98 % 160 100 % -1 100 % N/A % N/A % 100 % 99 %

055-07-2-06.17 99 % 14

LA0014- Jointed Minor

Rehabili- 055-30-03 B 055-30 1 0 0.37 Concrete tation SHS 80 % 140 N/A % -1 N/A % 99 % 99 % N/A % 99 % 1-00.00 87 % 17

03LA0014-B 055-30 1 0.37 0.62

Jointed Concrete

Minor Rehabili-

tation SHS 62 % 229 N/A % -1 N/A % 87 % 94 % N/A % 96 %055-30-1-00.37 73 % 4

Minor

03LA0014-B 055-30 1 0.99 0.73

Jointed Concrete

Rehabili-tation SHS 67 % 206 N/A % -1 N/A % 86 % 98 % N/A % 99 %

055-30-1-00.99 76 % 7

03LA0014-B 055-30 1 1.72 1.73

Jointed Concrete

Minor Rehabili-

tation SHS 68 % 198 N/A % -1 N/A % 95 % 96 % N/A % 97 %055-30-1-01.72 79 % 8% % % % % % % %

03 LA0014 055-31 1 0 1.03Jointed Concrete SHS 91 % 85 N/A % -1 N/A % 99 % 98 % N/A % 99 %

055-31-1-00.00 94 % 25

03 LA0031 056-01 1 0 0.22Composite

Medium Overlay SHS 67 % 205 89 % 0.24 82 % N/A % N/A % 92 % 86 %

056-01-1-00.00 76 % 4

Results of District SurveyResults of District Survey

Survey QuestionnaireSurvey QuestionnaireSurvey QuestionnaireSurvey QuestionnaireTo Identify the Needs of PMS users (9To Identify the Needs of PMS users (9--Districts)Districts)D i d i h h h l f P j R iD i d i h h h l f P j R iDesigned with the help of Project Review Designed with the help of Project Review CommitteeCommittee-- (23 Qs)(23 Qs)63 S r e q estionnaire ere sent63 S r e q estionnaire ere sent63 Survey questionnaire were sent63 Survey questionnaire were sent

Maintenance, Construction, Traffic and Design Maintenance, Construction, Traffic and Design EngineersEngineersEngineersEngineers

Site and telephonic Interviews were also conductedSite and telephonic Interviews were also conducted

SurveySurveySurvey Survey QuestionQuestion--

nairenaire2007200720072007

3. Do you use the PMS data?

NO 4 14%NO, 4, 14%

YES 25 86%YES, 25, 86%

Results of District Survey

4. You Use the PMS Data too:b. View the Overall

7525 5. Remaining servicelife

4550 4. Individual distress

indices

2872 3. IRI indexYES NO

45 55 2. Compositedistress index

5050 1. Condition distress

index

0 20 40 60 80 100 120


4. You Use the PMS Data too:

64

30

76Treatment

TypePrioritize Projects

Pave. Cond. Select Proj.

6372

5638

c. Identify the type of treatment required (preventive, maintenance, rehabilitation, reconstruction, etc.)d. Track the performance of applied treatmentse. Assess safety related issuesf. Obtain roadway sign locationsg. Obtain inventory datag. Obtain inventory datah. Assess the pavement condition and select projectsi. Prioritize between projects


6. How often would you like to receive reports from the PMS office?

4, 16%

5, 20%

16, 64%

a. Once a year b. Twice a year c. Othersa. Once a year b. Twice a year c. Others


11. Is the information in the reports adequate for your work?work?

17

67

17

67

a. Just Right b. Too Little c. Too much

13. What percentages of the annual pavement projects selected by the district are the same as thoseselected by the district are the same as those

recommended by the PMS office?

77 7

27

53

a. 0% b. 25% c. 50% d. 75% e. 100%

14. Does the district report the following activities to the PMS office (e.g. Mainframe data entry, TOPS, LETS, etc.)?

120

37 37 4035

80

100

3 3 40

60

80

onse

(%)

YESNO

40

Res

po

63 63 6065

20

0a. Reconstruction b. Rehabilitation c. Preservation d. Routine maintenance

16. Are there any concerns and issues regarding the following PMS information?regarding the following PMS information?

100%

60 58 6080%

se 67

40%

60%

Res

pons NO

YES

334042

4020%

R

0%a. Accuracy of

datab. Value of the

indicesc.

Recommendedd. Remaining

service lifedata indices Recommendedtreatments

service life


17. Do you have any concerns about the reference location systems?

YES, 37, 37%

NO, 63, 63%


21 (i). The PMS data of the 2007 survey will have the following capabilities

0 20 40 60 80 100 120

1 F l d 21

21

79

79

1. Fore slopes and crossslopes data.

2. Bridge clearance and 21

29

79

71

gramps

3. Object heights anddistances using the surveyor

29 71

tools

4. High definition qualitysharp images

YESNO

16 84 5. Degree of curvatures

based on AASHTOclassification

21 79 6. Electronic data in

smaller intervals than a tenthof a mile.

Findings & RecommendationsFindings & Recommendations

RecommendationsRecommendationsFindingsFindings(1)(1) Active and Dynamic Active and Dynamic

PMS PMS

(2)(2) Good Performance Good Performance Data (1995Data (1995--2007)2007) (1(1 3)3) St th CSt th CData (1995Data (1995 2007)2007)

(3)(3) Continuous Data Continuous Data

(1(1--3)3) Stay the CourseStay the Course

( )( )Collection (no Collection (no sampling) 0.1th milesampling) 0.1th mile


RecommendationsRecommendationsFindingsFindings(4)(4) PMS data:PMS data:--GISGIS--

enabled, GPSenabled, GPS--didicoordinatescoordinates

(5)(5) Electronic Data:Electronic Data:--PMS NEEDS &PMS NEEDS &

(4(4--5)5) Stay the CourseStay the Course

PMS, NEEDS & PMS, NEEDS & MATTMATT

(6)(6) Hard file data :Hard file data :(6)(6) Hard file data :Hard file data :--Design, Material Lab Design, Material Lab and Microfilmsand Microfilms

(6)(6) Digitize the dataDigitize the data


RecommendationsRecommendationsFindingsFindings(7)(7) The distress index The distress index

scale (0.0 to 100)scale (0.0 to 100)

(8)(8) All districts have All districts have (7(7--8)8) Stay the CourseStay the Course

access to the PMS access to the PMS data & the majority data & the majority uses the datauses the datauses the data.uses the data.


RecommendationsRecommendationsFindingsFindings(9)(9) Most districts views Most districts views

the overall (IRI), the the overall (IRI), the f h d if h d i

((99)) ObtainObtain inputsinputs fromfromthethe districtdistrict engineersengineers

dd kkuse of the data varies use of the data varies substantially from substantially from one district toone district to

andand taketake stepssteps totoincreaseincrease thethe useuse ofofthethe PMSPMS datadata..one district to one district to

another.another.ValuesValues ofof thethe distressdistressindicesindicesRemainingRemaining serviceservice lifelifeDetermineDetermine whetherwhether oror notnotDetermineDetermine whetherwhether oror notnottheythey reflectreflect thethe conditionsconditionsofof thethe pavementspavements..


RecommendationsRecommendationsFindingsFindings

(10)(10) No consensus amongst No consensus amongst the district engineers the district engineers

di th t fdi th t f

(10)(10) Establish a new report Establish a new report form and streamline its form and streamline its

regarding the type of regarding the type of reports from the PMS reports from the PMS office. office.

contents to the users.contents to the users.

NetworkNetwork--level reports level reports ppfor the managers and for the managers and the legislatorsthe legislatorsProjectProject--level reportslevel reportsProjectProject--level reports level reports targets district targets district engineers and engineers and technicianstechnicianstechnicianstechnicians



(11)(11) Most districts have Most districts have electronic records of electronic records of

i t &i t &

(11)(11) A meeting between the A meeting between the PMS unit and the PMS unit and the districts sho ld be helddistricts sho ld be heldmaintenance & maintenance &

rehabilitation but the rehabilitation but the data are not accessible to, data are not accessible to, nor are stored in thenor are stored in the

districts should be held districts should be held to discuss this issue. to discuss this issue.

T f d fT f d fnor are stored in, the nor are stored in, the PMS databank PMS databank

DisadvantageDisadvantage the PMSthe PMS

Types of data for a costTypes of data for a cost--effective PMSeffective PMSFormat and accuracy of Format and accuracy of d td tDisadvantageDisadvantage-- the PMS the PMS

engineers cannot track the engineers cannot track the performance and the cost performance and the cost of the various pavement of the various pavement

datadataData quality controlData quality controlCost to unify data forms Cost to unify data forms

il blil blpppreservation actions. preservation actions. vs. available resources.vs. available resources.



(12)(12) Various location Various location reference systems are reference systems are being usedbeing used

(12)(12) Address this issue at the Address this issue at the Department and/or Department and/or legislative levelslegislative levelsbeing used. being used.

Majority of the district Majority of the district engineers would like toengineers would like to

legislative levels. legislative levels.

Link existing reference Link existing reference systems, CSL & RMP to systems, CSL & RMP to engineers would like to engineers would like to

convert to a unified convert to a unified location reference systemlocation reference systemAlthough they have noAlthough they have no

sys e s, CS & osys e s, CS & oGPS. This would allow the GPS. This would allow the LA DOTD to continue using LA DOTD to continue using the existing systems. the existing systems. Th li k b d bTh li k b d bAlthough they have no Although they have no

concern about the current concern about the current systems.systems.

The linkage can be done by The linkage can be done by using an existing software using an existing software developed by the computer developed by the computer section of the department. section of the department. pp



(13)(13) The majority of the The majority of the district engineers are not district engineers are not aware of:aware of:

(13)(13) The PMS office should:The PMS office should:

D i d dD i d daware of:aware of:

Implementation status of Implementation status of the previousthe previous FHWAFHWA

Design and conduct Design and conduct training sessionstraining sessionsHold meetings with the Hold meetings with the di i ldi i lthe previous the previous FHWAFHWA

recommendations. recommendations. Capabilities of the new Capabilities of the new distress data collectiondistress data collection

district personneldistrict personnelTrain and update the PMS Train and update the PMS users regarding the recent users regarding the recent d l pm t &d l pm t &distress data collection distress data collection

system and the PMS system and the PMS databasedatabase

developments & developments & capabilities of the PMS. capabilities of the PMS. This would enhance This would enhance communication betweencommunication betweencommunication between communication between the PMS and the districts. the PMS and the districts.



(14)(14) Since the establishment Since the establishment of Deduct Point values, of Deduct Point values, no study has beenno study has been

(14)(14) Current scheme of Current scheme of Deduct Point values Deduct Point values h ld b lib dh ld b lib dno study has been no study has been

conducted to calibrated conducted to calibrated them.them.

should be calibrated should be calibrated and modified based and modified based on what we haveon what we have

It has been modified twiceIt has been modified twiceHowever, no written However, no written records were foundrecords were found

on what we have on what we have learned and costs learned and costs datadatarecords were foundrecords were found



(15)(15) The LA DOTD uses The LA DOTD uses different threshold values different threshold values (trigger values for(trigger values for

(15)(15) Adopt uniform trigger Adopt uniform trigger (Index threshold values) (Index threshold values) (trigger values for (trigger values for

preservation actions) for preservation actions) for different pavement types different pavement types and distresses. and distresses.

for all pavement types for all pavement types and for all types of and for all types of distress in thedistress in thedistress in the distress in the pavements. pavements.

Uniformity of threshold Uniformity of threshold would enhance would enhance communicationcommunication



(16)(16) Most Pavement Most Pavement Performance models Performance models for various distressfor various distress

(16)(16) Calibrate the Calibrate the pavement pavement performance modelsperformance modelsfor various distress for various distress

types under predict types under predict the index values.the index values.

performance models performance models based on available based on available historical and historical and di t d tdi t d tdistress data.distress data.



(17)(17) The PMS establishes the The PMS establishes the pavement uniform pavement uniform

(17)(17) Explore other types of Explore other types of uniform sections that uniform sections that pp

sections based on the sections based on the NEED section or project NEED section or project boundaries. boundaries.

have more advantages have more advantages

F l b dF l b dbou da es.bou da es. For example, based on one For example, based on one or more distress indices or or more distress indices or RSLRSLAdvantages and Advantages and disadvantages of various disadvantages of various types of uniform sections types of uniform sections have been providedhave been provided

Preliminary FindingsPreliminary FindingsPreliminary FindingsPreliminary Findings

In lieu of Department’s Efforts to Implement theIn lieu of Department’s Efforts to Implement theIn lieu of Department s Efforts to Implement the In lieu of Department s Efforts to Implement the MEPDGMEPDG

PMS data is Fair/good for initial calibration (Level 2)PMS data is Fair/good for initial calibration (Level 2)

PMS data not stored as required by MEPDG PMS data not stored as required by MEPDG electronically at the electronically at the Desired LevelDesired Level and in some case at and in some case at thethe Minimum LevelMinimum Levelthe the Minimum LevelMinimum Level

No deflections data at the network levelNo deflections data at the network level

Requires Compatibility in distress and pavement typeRequires Compatibility in distress and pavement typeRequires Compatibility in distress and pavement type Requires Compatibility in distress and pavement type definitions.definitions.

Satellite PMS/Design Database for Added sections Satellite PMS/Design Database for Added sections ( A( A d i )d i )(FHWA(FHWA-- Recommendation)Recommendation)

Th k !!!Th k !!!Thanks!!!Thanks!!!

Some SuggestionsSome Suggestions

Pavement Pavement PreservationPreservation

Thou shall not wait till the last minuteThou shall not wait till the last minutePreservationPreservation

Recipe for SuccessRecipe for SuccessRecipe for SuccessRecipe for Success

I like PMS…..I like PMS…..

Prioritize….. Optimize…… Prioritize….. Optimize……

Use PMSUse PMSUse PMS….Use PMS….

Mohammad JJk,,amal Khattak, Ph.D., P.E. University of ...M.pdf · Mohammad JJk,,amal Khattak,...

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