Project Number	Project Title	Stage	Comments
NCHRP 01-25(1)	Effects of Heavy Vehicle Characteristics on Pavement Response and Performance---Phase II	Completed
NCHRP 01-27	Video Image Processing for Evaluating Pavement Surface Distress	Completed
NCHRP 01-28	Laboratory Determination of Resilient Modulus for Flexible Pavement Design	Completed
NCHRP 01-28A	Harmonized Test Methods for Laboratory Determination of Resilient Modulus for Flexible Pavement Design	Completed
NCHRP 01-29	Improved Surface Drainage of Pavements	Completed
NCHRP 01-30	Support Under Portland Cement Concrete Pavements	Completed
NCHRP 01-31	Smoothness Specifications for Pavements	Completed
NCHRP 01-32	Systems for Design of Highway Pavements	Completed
NCHRP 01-33	Methodology to Improve Pavement-Investment Decisions	Completed
NCHRP 01-34	Performance of Subsurface Pavement Drainage	Completed
NCHRP 01-34A	Contributions of Pavement Structural Layers to Rutting of Flexible Pavements	Completed
NCHRP 01-34B	Effectiveness of Subsurface Drainage for HMA and PCC Pavements	Completed
NCHRP 01-34C	Effects of Subsurface Drainage on Performance of Asphalt and Concrete Pavements	Completed
NCHRP 01-34D	Effects of Subsurface Drainage on Performance of Asphalt and Concrete Pavements: Further Evaluation and Analysis of LTPP SPS-1 and SPS-2 Field Sections	Completed
NCHRP 01-35A	Guide for Pavement Management	Completed
NCHRP 01-36	Determination of Pavement Damage from Super-Single and Singled-Out Dual Truck Tires	Completed
NCHRP 01-37	Development of the 2002 Guide for the Design of New and Rehabilitated Pavement Structures	Completed
NCHRP 01-37A	Development of the 2002 Guide for the Design of New and Rehabilitated Pavement Structures: Phase II	Completed
NCHRP 01-37A(01)	Distribution Plan for the Recommended Mechanistic-Empirical Pavement Guide and Software	Completed
NCHRP 01-38	Guide on Pavement Rehabilitation Strategies	Completed
NCHRP 01-39	Traffic Data Collection, Analysis, and Forecasting for Mechanistic Pavement Design	Completed
NCHRP 01-40	Facilitating the Implementation of the Guide for the Design of New and Rehabilitated Pavement Structures	Completed	The MEPDG software is now available from AASHTOWare as the Pavement ME Design program.
NCHRP 01-40A	Independent Review of the Recommended Mechanistic-Empirical Design Guide and Software	Completed
NCHRP 01-40B	User Manual and Local Calibration Guide for the Mechanistic-Empirical Pavement Design Guide and Software	Completed
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 Software	Completed
NCHRP 01-41	Models for Predicting Reflection Cracking of Hot-Mix Asphalt Overlays	Completed
NCHRP 01-42	Top-Down Fatigue Cracking of Hot-Mix Asphalt Layers - Phase I	Completed
NCHRP 01-42A	Models for Predicting Top-Down Cracking of Hot-Mix Asphalt Layers	Completed
NCHRP 01-43	Guide for Pavement Friction	Completed
NCHRP 01-44	Measuring Tire-Pavement Noise at the Source	Completed
NCHRP 01-44(01)	Measuring Tire-Pavement Noise at the Source: Precision and Bias Statement	Completed
NCHRP 01-45	Models for Estimating the Effects of Pavement Condition on Vehicle Operating Costs	Completed
NCHRP 01-46	Handbook for Pavement Design, Construction, and Management	Completed
NCHRP 01-47	Sensitivity Evaluation of MEPDG Performance Prediction	Completed
NCHRP 01-48	Incorporating Pavement Preservation into the MEPDG	Completed
NCHRP 01-49	Guidelines for Conducting Forensic Investigation of Highway Pavements	Completed
NCHRP 01-50	Quantifying the Influence of Geosynthetics on Pavement Performance	Completed
NCHRP 01-51	A Model for Incorporating Slab/Underlying Layer Interaction into the MEPDG Concrete Pavement Analysis Procedures	Completed
NCHRP 01-52	A Mechanistic-Empirical Model for Top-Down Cracking of Asphalt Pavement Layers	Completed
NCHRP 01-53	Proposed Enhancements to Pavement ME Design: Improved Consideration of the Influence of Subgrade and Unbound Layers on Pavement Performance	Completed
NCHRP 01-54	Guidelines for Limiting Damage to Flexible and Composite Pavements Due to the Presence of Water	Completed	Publication decision pending.
NCHRP 01-55	Performance-Based Mix Design of Porous Friction Courses	Completed
NCHRP 01-57	Standard Definitions for Comparable Pavement Cracking Data	Completed	The research will be completed through NCHRP Project 1-57A.
NCHRP 01-57A	Developing Standard Definitions for Comparable Pavement Cracking Data	Completed
NCHRP 01-57B	Validating Proposed Definitions for Comparable Pavement Cracking Data	Active	Research in progress.
NCHRP 01-58	Quantifying the Effects of Implements of Husbandry on Pavements	Completed
NCHRP 01-59	The Influence of Subgrade Soils Susceptible to Shrink/Swell and/or Frost Heave on Pavement Performance	Final	Published as NCHRP Research Report 1096.
NCHRP 01-60	Measuring the Characteristics of Pavement Surface Images and Developing Standard Practices for Calibration, Certification, and Verification of Imaging Systems	Completed	To be published as NCHRP Research Report 1106.
NCHRP 01-61	Evaluation of Bonded Concrete Overlays on Asphalt Pavements	Final	This project was published as NCHRP Research Report 1007. The appendices are available as NCHRP WOD 329.
NCHRP 01-62	Impact of Flooding on the Resiliency of Pavement Systems	Active	Research in progress
NCHRP 01-63	Incorporating Traffic Speed Deflection Devices Measurements into Pavement Management and Design	Pending