# Presentation: 007186

## Long-Term Pavement Performance  Data  Analysis  Program   

**Strategic Objective 1:****  **
**Traffic characterization and prediction**

**Long-Term Pavement Performance  Data  Analysis  Program  **

- March 12, 2002

- A. Guidelines for data collection
- (hardware, software, placement,
- calibration, data collection frequency).
*Some elements require work beyond*
*LTPP data analysis, but analysis is*
*needed to provide some components.*

- B. Guidelines for applying traffic
- loading and classification data in
- pavement design.

- C. Procedures for forecasting
- and back-casting traffic loading
- data.

- D.  Impact of pavement roughness on
- the dynamic loads applied to
- pavements.

**Strategic Objective 2:****  **
**Materials characterization**

- A.  Relative importance of different
- material characteristics in predicting
- pavement performance.

- B. Relationships to enable
- interchangeable use of laboratory
- and field-derived material
- parameters.

- C. Relationship between as-designed
- and as-built material characteristics.

- D.  Performance impact of different
- levels of material variability and
- quality.

- E.  Estimate material design
- parameters from other materials
- data (for example, Resilient Modulus
- from gradation and density).

**Strategic Objective 3:****  **
**Determination of environmental **
**effects in pavement design and **
**performance prediction****.**

- A.  Impact of temperature and
- moisture variations (independent of
- frost penetration) on pavement
- performance.

- B.  Impact of freeze-thaw cycles
- on pavement performance.

- C.  Long-term changes in
- pavement characteristics due
- to environmental effects and aging.

- D.  Recommendations for climate
- data collection to adequately
- predict pavement performance..

- E.  Region Specific guidelines
- for considering environmental
- and load effects.

**Strategic Objective 4:****  **
**Evaluation and use of pavement**
**condition data in pavement **
**management.**

- A.   Comprehensive guidelines for
- assessing the relative performance of
- different pavements.

- B. Improve measures of pavement
- structural condition for use in
- network-level pavement management.

- C.  Models relating functional
- and structural performance.

- D.  Criteria for applying performance
- measures (including variability)
- to construction quality evaluation.

- E.  Relationship between variation in
- pavement performance measures and
- environmental factors.

**Strategic Objective 5:****  **
**Development of pavement response **
**and performance models applicable to **
**pavement design and performance **
**prediction.**

- A.  Guidelines for selection of
- appropriate load-response models for use
- in pavement design as a function of the
- acceptable level of risk, and
- model complexity.

- B.  Mechanistic-empirical procedures
- for using commonly collected
- pavement data to predict specific
- distresses.

- C.  Calibrated relationships
- (transfer functions) between
- pavement response and individual
- distress types.

**Strategic Objective 6:****  **
**Maintenance and rehabilitation **
**strategy selection and performance **
**prediction****.**

- A.   Performance and efficacy
- of maintenance and rehabilitation
- treatments as a function of
- pre-treatment condition.

- B.  Guidelines for timing and selection
- of pavement maintenance and
- rehabilitation options, and expected
- performance impacts of each.

**Strategic Objective 7:****  **
**Quantification of the performance impact**
**of specific design features (presence or**
**absence of positive drainage, differing**
**levels of pre-rehab surface preparations, **
**etc.)**

- A.   Impact of design features on
- measured pavement responses
- (deflections, load-transfer, strains, etc.)

- B.  Impact of design features on
- pavement distress.

- C.  Guidelines for the selection
- of pavement design features.

**NCHRP 20-50(14)**                      $ 200,000
- Significance of “As-Constructed AC Air
- Voids to Pavement Performance.”
- 	                    June 5, 2000
- 	                    June 4, 2001
- Applied Pav’t Tech.           Seeds/Harrigan

**NCHRP 20-50(9)**                        $174,996
- Feasibility of Using FWD Deflection Data
- to Characterize Pavement Construction
- Quality.
- 	                May 2, 2000
- 	                Nov 2, 2001
- Consulpav                         Stubstad/Berlin

**NCHRP 20-50(7/12)**                  $ 349,969
- Daily and Seasonal variations in Insitu
- material properties.
- 	                     Feb. 7, 2000
- 	                    Jan. 13, 2002
- Univ. of Tennessee              Drumm/Berlin

**NCHRP 20-50(3/4)**                      $250,000
- Effectiveness of maintenance and rehab
- options.
- 	                    Oct. 14, 1999
- 	                    July. 13, 2001
- Kathleen Hall Inc.                  Hall/Berlin

**NCHRP 20-50(2)**                         $  75,000
- Relative Performance of Jointed Plain
- concrete pavements with sealed and unsealed joints.
- 	                     July 29, 1999
- 	                     Oct. 29, 2000
- Kathleen Hall Inc.                   Hall/Berlin

**NCHRP 20-50(8/13)**                   $ 199,998
- Factors affecting pavement smoothness.
- 	                   Oct. 25, 1999
- 	                   April 24, 2001
- Soil & Mat’l Engrs.                Kohn/Hanna

**Problem Statement Number         1B1**
- Optimization of Traffic Data Collection
- for Specific Pavement Applications.
- 18 months	                       $300,000
*To Be Coordinated With NCHRP 1-39*

**Problem Statement Number          1C1**
- Procedures for forecasting and back-
- casting traffic loading data.
- 12 months	                        $250,000

**NCHRP 1-39      **                  $ 500,000
- Traffic Data collection, analysis and
- forecasting for mechanistic pavement
- design.
- 	          Aug. 30, 2000
- 	          Aug. 30, 2002
- Cambridge Systems    Weinblatt/Hanna

**Problem Statement Number         1D1**
- Tools for analyzing errors and
- improving accuracy of existing WIM
- Systems.
- 24 months	                      $450,000

**FHWA**	                        $ 200,000
- Review of LTPP Backcalculation
- Results.
-                                          Planned  2001
- TBD	               TBD/Richter

**Problem Statement Number            3A1**
- Assessment of the Individual Effects
- of loading and environment on
- Pavement Distress.
- 24 months	                         $500,000

**Problem Statement Number           3A2**
- Temporal effects of environmental
- factors in determining overload
- damage. (***after*** NCHRP 20-50(5))
- 30 months	                         $400,000

**Problem Statement Number           3B1**
- Effect on Performance of Multiple
- Freeze-Thaw Cycles vs. Deep Frost
- Penetration.
- 30 months	                        $375,000
*Pooled Fund Study TPF 5(013)*

**Problem Statement Number             4B1**
- Simplified Techniques for Evaluation
- and interpretation of pavement
- deflections for network-level analysis.
- 18 months	                         $200,000

**Problem Statement Number           5B1**
- Evaluation of the Performance Prediction
- Models in the 2002 Pavement Design.
- Guide.
- 24 months	                         $ 400,000

**Problem Statement Number            5A1**
- Evaluation of load-response models
- (axle load and environment).
- 24 months	                          $200,000

**Problem Statement Number             6B1**
- Guidelines for Selecting Pavement
- Rehabilitation Strategies that Consider
- Impact on Pavement Life and/or
- Performance.
- (***after*** 2002 - Builds on 20-50(3/4))
- 18 months	                          $750,000

**NCHRP 20-50(10/16)               **$300,000
- Influence of design and construction
- features on the response and performance of new flexible and rigid
- pavements.
- 24 months (contract pending)

**Problem Statement Number          7B1a**
- Determine the impact of design
- features on pavement distress for
- new flexible pavements.
- 24 months	                         $300,000

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**Problem Statement Number           2E1**
- Estimation of key base and subgrade
- engineering properties from index
- properties, routine tests and physical
- characteristics.

**Problem Statement Number           2E2**
- Estimation of key hot mix asphalt and
- component engineering properties from
- routine tests and physical characteristics.

**Problem Statement Number           2E3**
- Estimation of key PCC and component
- engineering properties from
- routine tests and physical characteristics.

**Problem Statement Number             3C1**
- Evaluation of the integrated climatic
- model using LTPP Seasonal
- Monitoring Project (SMP) data.

**Problem Statement Number             4E1**
- Using SMP data, analyze and quantify
- information on the effects of
- environmental variables on pavement
- performance measures.

**Problem Statement Number            3B2**
- Pavement damage caused by swelling
- and frost susceptible soils.  Validate
- mechanistic indices to characterize
- the effects of frost and swell.

**Problem Statement Number             3C2**
- Determine the applicability of mechanistic
- design methods. Assess the effect of
- environment on pavement materials to
- determine whether mechanistic theoretical
- assumptions are valid.

**Problem Statement Number            4A1**
- Develop improved pavement performance
- default values or models for life-cycle
- cost determination.

**Problem Statement Number            4A3**
- Develop numerical pavement evaluation
- indices for both AC and PCC pavement
- to characterize the most common
- pavement condition (distresses).

**Problem Statement Number            4A2**
- Develop hierarchical data collection for
- network- and project-level pavement
- management considering types and
- frequencies of measurements.

**Problem Statement Number            5C1**
- Verification of reflective cracking models.
- 24 months	                         $ 200,000

**Problem Statement Number           4D1 **
- Early performance criteria for pavement
- construction warranties.  Provide early
- performance data to assist states in
- developing realistic criteria for pavement
- warranties.

**NCHRP 1-37A      **                 $ 3,986,396
- Development of the 2002 Guide for the
- Design of new and rehabilitated Pavement Structures (Phase II).
- 	                 Feb.   1, 1998
- 	                 Dec. 31, 2001
- ERES Consultants             Hallin/Hanna

**NCHRP 1-38      **                  $ 100,000
- Guide on Pavement Rehabilitation
- Strategies.
- 	            March 1, 1999
- 	            Jan. 31, 2001
- Kathleen Hall Inc.          Hall/Hanna

**NCHRP 1-35A      **                    $ 149,923
- Guide for Pavement Management.
- 	                   Dec. 1, 1997
-                        Completed    June 1, 2000
- Texas A&M                          Smith/Hanna

**NCHRP 1-34C    **                       $ 88,124
- Effects of subsurface drainage on
- performance of asphalt and concrete
- pavements.
- 	                  April 6, 2000
- 	                  April 5, 2001
- Kathleen Hall Inc.                Hall/Harrigan

**NCHRP project number    **                        $ Funds
- NCHRP project title
- 	                                   Effective Date
- 	                              Completion Date
- Responsible Agency         Principal Inv./NCHRP Staff

- Light Blue boxes are on-going NCHRP
- projects that were initiated by the LTPP ETG.

**NCHRP project number    **                        $ Funds
- NCHRP project title
- 	                                   Effective Date
-                                                         Completion Date
- Responsible Agency         Principal Inv./NCHRP Staff

- Pink boxes are on-going NCHRP projects
- that were initiated by other agencies or work groups,
- but are directly associated with LTPP Data Analysis
- Plan Strategic Objectives and Analysis Outcomes.

- Dashed white boxes are proposed Research Problem
- Statements that were developed at LTPP Workshops.
- See Note 1) for an explanation of the Problem Statement
- Numbering scheme.

**Problem Statement Number             O_A_n**
- Proposed problem title.
- Project duration.     Anticipated project funds.

**FHWA  Technical Support Contract          **$  Funds
- Project title
- 	                                          Start Date
- 	                                Completion Date
- Responsible Agency           Principal Inv/FHWA Staff

- Solid Orange boxes are on-going FHWA
- projects that were funded using LTPP
- budgeted funds.

**FHWA****	****                    **    $ 243,000
- Review of LTPP materials data.
- 	                   Sept. 1, 1999          	                   Mar.  1,  2001
- ERES Consultants               Ayers/Richter

- Strategic Plan Objectives, Analysis Outcomes and Supporting Projects

**NCHRP 20-50(5)**                      $ 250,000
- Variations in Pavement Design Inputs.
- 	                 Oct. 13, 1999
- 	                 July 12, 2001
- Consulpav	              Stubstad/Berlin

**NCHRP 20-50(15)**                  $ 150,000
- Confidence of WIM Axle Load Data.
- Pending

**NCHRP 9-23      **                        $350,000
- Environmental effects in Pavement Mix
- and Structural Design Systems.
- Pending

**NCHRP 1-34A      **                     $ 149,923
- Contributions of Pavement Structural
- Layers to rutting of Flexible Pavements.
- 	                June. 18, 1999
- 	                Mar.   31, 2001
- Purdue RF         White-Haddock/Harrigan

**NCHRP 14-14      **                  $ 500,000
- Guide for optimal timing of pavement
- preventive maintenance treatment
- applications.
- 	            Apr. 10, 2000
- 	            July   9, 2002
- Applied Pav’t Tech.       Peshkin/Hanna

_**Priorities**_

- Critical
- Very High
- High
- Sequence

- Sequence numbers denote the order in which Analysis Outcomes should be
- addressed for a given Objective.  Analysis Outcomes with the same
- sequence number can be addressed at the same time.

- 1     2    3

- _Note_
- 1) Problem Statements are assigned a 3 character
- number using the convention ‘**O_A_n’**.  ‘O’ is the
- associated Strategic Objective number (1 through 7);
- ‘A’ is the associated Analysis Outcome letter
- (A, B, C etc.) and ‘n’ is an arbitrarily assigned number
- used for identification purposes.  The number ‘n’ does
- not imply a sequence in which Problem Statements
- should be addressed.

**FHWA Technical Support Contract         **$ Funds** **
- Project title
-                                                     Planned Start Date
- Responsible Agency         Principal Inv./FHWA Staff

- Hashed Orange boxes are planned FHWA
- projects that will be funded using LTPP
- budgeted funds.

**FHWA**                                        $   27,000
- Review of LTPP Resilient Modulus Data
- for Unbound Materials.
- 	                  June  -    2000          	                  Apr.  30, 2001
- ERES/Fugro-BRE     Von Quintus/Richter

**FHWA****	****                   **    $ 100,000
- Review of the SPS-9 (SuperPave
- Validation) Experiment.
- 	                  Planned 2001
- TBD                                     TBD/Richter

**FHWA****	****                   **    $   50,000
- Review of LTPP Resilient Modulus data
- for AC Materials.
- 	                  Planned 2002
- TBD                                     TBD/Richter

**FHWA****	****                   **     $ 296,000
- Backcalculation of Layer Moduli.
- 	                  Aug.   7, 1997
- 	                  Dec. 31, 2000
- 	        Khazanovich &
- ERES/Fugro-BRE     Von Quintus/Richter

**FHWA****	****                    **  $ 543,000
- Backcasting to Fill Gaps in LTPP Traffic Data.
- 	               Oct.   15, 1998
-           	               Sept. 30,  2001
- ERES Consultants           Hajek/Wiser

**FHWA****	****                    **    $   94,000
- Evaluation of Pavement Temperature
- Data.
-           	                      Oct.    1998
-                      	                      Nov.   2000
- EBA/Consulpav/Braun    Lukanen/Symons

**FHWA****	****                    **    $ 136,000
- Interpretation of TDR Data.
- 	                   Nov. 1,  1996
-           	                   Oct. 31, 2000
- ERES Consultants               Jiang/Richter

**FHWA****	****                    **    $      -
- Seasonal Variations in Unbound Materials.
- 	                        May  1997
-           	                        Mar.  2000
- FHWA Staff                               Richter

**FHWA****	****                    **    $ 142,000
- Determination of Depths of Frost and
- Thaw Penetration.
- 	                 Nov.   1, 1996
-           	                 July  31,  2000
- ERES Consultants             Jiang/Richter

**FHWA****	****                    **     $ 141,000
- Consolidated Distress Data.
- 	                   Aug. 15, 1998
-           	                   Dec.  31,2000
- ERES/Fugro-BRE            Simpson/Richter

**FHWA****	****                    **    $ 397,000
- Longitudinal Profile variability.
- 	                   July  28, 1997
-          	                   Sept.  1, 2000
- ERES Consultants               Evans/Richter

**FHWA****	****                    **    $  58,000
- Joint Faulting Data Analysis.
- 	                  June 28, 1998
-           	                  Dec. 31,  2000
- ERES Consultants              Tayabji/Richter

**FHWA****	****                    **    $ 196,000
- Study of Transverse Profile.
-           	                   July 28, 1997
-             	                   Sept. 1, 2000
- ERES/Fugro-BRE            Simpson/Richter

**FHWA****	****                    **    $   50,000
- Review of LTPP Dynamic Load Response.
- Data.	                       Dec,  1999
-           	                       Dec.   2000
- FHWA Staff                              Staff/Salut

**FHWA****	****                    **    $   75,000
- Quantification of smoothness index
- differences related to LTPP Equipment
- Type.
-           	                 Planned 2003
- TBD                                    TBD/Richter

**FHWA****	****                    **    $ 100,000
- Study of LTPP Pavement Deflections.
- 	                      Oct,   1998
-          	                      Nov.  2000
- EBA/Consulpav/Braun   Stubstad/Symons

**FHWA****	****                    **    $ 100,000
- Characterization of PCC Pavement
- Curvature.
-          	                   Planned 2002
- TBD                                      TBD/Richter

**FHWA****	****                    **    $ 100,000
- Evaluation of LTPP Site-Specific Climatic
- Data.
- 	                   Planned 2003
- TBD                                      TBD/Richter

**FHWA****	****                    **    $     -
- Verification of LTPP Virtual Weather
- Stations.
- 	                      Jan.  2000
-           	                      Oct.  2000
- EBA/Mohseni                 Mohseni/Symons

**FHWA****	****                    **    $   54,000
- Review of Pavement maintenance &
- Rehabilitation Data.
- 	                   Oct. 11,  1999
-           	                   Nov.       2000
- ERES/Fugro-BRE       Von Quintus/Richter

**FHWA****	****                    **    $ 360,000
- Review of SPS 1, -2, -5 and -6
- Experiments.	                   July 12, 1999
-           	                   Dec. 31, 2000
- 	         Darter &
- ERES/Fugro-BRE      Von Quintus/Richter

**FHWA****	****                    **    $ 191,000
- Review of Layer Thickness Data.
- .	                 Sept.  1, 1999
-           	                 Dec.  31, 2000
- ERES Consultants             Jiang/Richter

**FHWA****	****                    **    $  75,000
- Review of SPS-8 Experiment.
- .
-           	                  Planned 2001
- TBD                                       TBD/Richter

**FHWA****	****                    **    $  75,000
- Evaluation of Load Transfer.
- .
-           	                  Planned 2002
- TBD                                       TBD/Richter

**FHWA****	****                    **    $ 100,000
- Evaluation and Characterization of
- Pavement Drainage.
-           	                  Planned 2002
- TBD                                       TBD/Richter

- 2003

- Highlighted boxes identify Problem Statements
- that have been selected for inclusion in the
- proposed LTPP Data Analysis Program for the
- year indicated.

**Problem Statement Number           2B1**
- Relationships Between Laboratory and
- Field Derived Material Parameters.

**Problem Statement Number            3E1**
- Region Specific Guidelines for Pavement
- Modeling and Design Considering
- Environmental Effects.

**Problem Statement Number          4C1**
- Relating Ride Quality and Structural
- Support for Pavement Rehabilitation
- Design Decisions.
- 12 months	                      $ 200,000

**Problem Statement Number          7B1b **
- Determine the impact of design
- features on pavement distress for
- new rigid pavements.
- 24 months	                         $300,000

**Problem Statement Number            7A1**
- SPS-6 Impact of Design Features on Response in Rehabilitated Pavement.

**Problem Statement Number          1C2**
- Estimation of Traffic Axle-load Spectra.

- G.  Combination of all results under
- this Objective to provide a unified set
- of tools/guidelines for characterizing
- pavement materials/soils for pavement
- design and construction.

**1**

**H**

- F.  Improved Deflection-Based
- analysis Methods for Materials
- Characterization.

**1**

**H**

**Problem Statement Number             4E2**
- Develop PCCP Temperature
- Correction Factors for Interpretation
- of FWD test results.

**Problem Statement Number            5C2**
- Evaluation of Pavement Performance
- Models.

**Problem Statement Number          7C1 **
- Guidelines for the Selection of Pavement
- Design Features.

**Problem Statement Number          7B2**
- Factors affecting the performance of
- flexible and rigid pavements.