Project Number Project Title Stage Comments
NCHRP 01-25(1)Effects of Heavy Vehicle Characteristics on Pavement Response and Performance---Phase IICompleted
NCHRP 01-27Video Image Processing for Evaluating Pavement Surface DistressCompleted
NCHRP 01-28Laboratory Determination of Resilient Modulus for Flexible Pavement DesignCompleted
NCHRP 01-28AHarmonized Test Methods for Laboratory Determination of Resilient Modulus for Flexible Pavement DesignCompleted
NCHRP 01-29Improved Surface Drainage of PavementsCompleted
NCHRP 01-30Support Under Portland Cement Concrete PavementsCompleted
NCHRP 01-31Smoothness Specifications for PavementsCompleted
NCHRP 01-32Systems for Design of Highway PavementsCompleted
NCHRP 01-33Methodology to Improve Pavement-Investment DecisionsCompleted
NCHRP 01-34Performance of Subsurface Pavement DrainageCompleted
NCHRP 01-34AContributions of Pavement Structural Layers to Rutting of Flexible PavementsCompleted
NCHRP 01-34BEffectiveness of Subsurface Drainage for HMA and PCC PavementsCompleted
NCHRP 01-34CEffects of Subsurface Drainage on Performance of Asphalt and Concrete PavementsCompleted
NCHRP 01-34DEffects of Subsurface Drainage on Performance of Asphalt and Concrete Pavements: Further Evaluation and Analysis of LTPP SPS-1 and SPS-2 Field SectionsCompleted
NCHRP 01-35AGuide for Pavement ManagementCompleted
NCHRP 01-36Determination of Pavement Damage from Super-Single and Singled-Out Dual Truck TiresCompleted
NCHRP 01-37Development of the 2002 Guide for the Design of New and Rehabilitated Pavement StructuresCompleted
NCHRP 01-37ADevelopment of the 2002 Guide for the Design of New and Rehabilitated Pavement Structures: Phase IICompleted
NCHRP 01-37A(01)Distribution Plan for the Recommended Mechanistic-Empirical Pavement Guide and SoftwareCompleted
NCHRP 01-38Guide on Pavement Rehabilitation StrategiesCompleted
NCHRP 01-39Traffic Data Collection, Analysis, and Forecasting for Mechanistic Pavement DesignCompleted
NCHRP 01-40Facilitating the Implementation of the Guide for the Design of New and Rehabilitated Pavement StructuresCompletedThe MEPDG software is now available from AASHTOWare as the Pavement ME Design program.
NCHRP 01-40AIndependent Review of the Recommended Mechanistic-Empirical Design Guide and SoftwareCompleted
NCHRP 01-40BUser Manual and Local Calibration Guide for the Mechanistic-Empirical Pavement Design Guide and SoftwareCompleted
NCHRP 01-40D(01)Technical Assistance to NCHRP and NCHRP Project 1-40A: Versions 0.9 and 1.0 of the M-E Pavement Design SoftwareCompleted
NCHRP 01-41Models for Predicting Reflection Cracking of Hot-Mix Asphalt OverlaysCompleted
NCHRP 01-42Top-Down Fatigue Cracking of Hot-Mix Asphalt Layers - Phase ICompleted
NCHRP 01-42AModels for Predicting Top-Down Cracking of Hot-Mix Asphalt LayersCompleted
NCHRP 01-43Guide for Pavement FrictionCompleted
NCHRP 01-44Measuring Tire-Pavement Noise at the SourceCompleted
NCHRP 01-44(01)Measuring Tire-Pavement Noise at the Source: Precision and Bias StatementCompleted
NCHRP 01-45Models for Estimating the Effects of Pavement Condition on Vehicle Operating CostsCompleted
NCHRP 01-46Handbook for Pavement Design, Construction, and ManagementCompleted
NCHRP 01-47Sensitivity Evaluation of MEPDG Performance PredictionCompleted
NCHRP 01-48Incorporating Pavement Preservation into the MEPDGCompleted
NCHRP 01-49Guidelines for Conducting Forensic Investigation of Highway PavementsCompleted
NCHRP 01-50Quantifying the Influence of Geosynthetics on Pavement PerformanceCompleted
NCHRP 01-51A Model for Incorporating Slab/Underlying Layer Interaction into the MEPDG Concrete Pavement Analysis ProceduresCompleted
NCHRP 01-52A Mechanistic-Empirical Model for Top-Down Cracking of Asphalt Pavement LayersCompleted
NCHRP 01-53Proposed Enhancements to Pavement ME Design: Improved Consideration of the Influence of Subgrade and Unbound Layers on Pavement PerformanceCompleted
NCHRP 01-54Guidelines for Limiting Damage to Flexible and Composite Pavements Due to the Presence of WaterActive
NCHRP 01-55Performance-Based Mix Design of Porous Friction CoursesCompleted
NCHRP 01-57Standard Definitions for Comparable Pavement Cracking DataCompletedThe research will be completed through NCHRP Project 1-57A.
NCHRP 01-57ADeveloping Standard Definitions for Comparable Pavement Cracking DataActive
NCHRP 01-58Quantifying the Effects of Implements of Husbandry on PavementsActive
NCHRP 01-59Proposed Enhancements to Pavement ME Design: Improved Consideration of the Influence of Subgrade Soils Susceptible to Shrink/Swell and/or Frost Heave on Pavement PerformanceActive
NCHRP 01-60Measuring the Characteristics of Pavement Surface Images and Developing Standard Practices for Calibration, Certification, and Verification of Imaging SystemsActive
NCHRP 01-61Evaluation of Bonded Concrete Overlays on Asphalt PavementsActive