01043818

Component

https://doi.org/10.3141/2037-09

http://scholar.google.com...Hall&publication_year=2007

A new "Mechanistic–Empirical Pavement Design Guide" (MEPDG) has been developed under NCHRP Project 1-37A. Pavement design procedures recommended for use in MEPDG represent a significant departure from current procedures. The MEPDG requires new traffic inputs for estimating the magnitude, configuration, and frequency of the loads that are applied throughout the pavement design life. The Arkansas State Highway and Transportation Department (AHTD) sponsored research in which one objective was development of statewide truck traffic volume adjustment factors, including class and monthly and hourly distribution factors, and evaluating significance of the developed inputs in the MEPDG. The AHTD provided classification data collected at 55 weigh-in-motion (WIM) sites from 2003 through 2005. Because of missing and inaccurate classification data at several WIM sites, only 23 sites provided classification data suitable for this study. On the basis of selected data, statewide monthly, hourly, and class distribution factors were developed for Arkansas. Analyses using the MEPDG showed the state-specific class distribution factors to have a significant effect on predicted pavement performance, compared with predictions generated by using default distribution values. However, the effect of using state-specific monthly and hourly distribution factors on predicted pavement performance rather than default values was not significant. Therefore, it is recommended that the state-specific class distribution factors be used with the default monthly and hourly distribution factors in the MEPDG. In addition, periodic review and update of statewide class distribution factors, as necessary, are recommended.

01091283

English

pp 97-105

2007

Transportation Research Record: Journal of the Transportation Research Board

9780309113014

Print

Figures (9) ; References (10) ; Tables (5)

Adjustment factors; Data collection; Pavement design; Pavement performance; Service life; Traffic distribution; Traffic loads; Traffic volume; Truck traffic; Vehicle classification; Weigh in motion

Mechanistic-Empirical Pavement Design Guide

Arkansas

Design; Freight Transportation; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

PRP, TRIS, TRB, ATRI

Feb 8 2007 5:34PM

• Assessment of In Situ Dielectric Constant of Pavement Materials
• Determination of In-Place Hot-Mix Asphalt Layer Modulus for Rehabilitation Projects by a Mechanistic–Empirical Procedure
• Development and Influence of Statewide Axle Load Spectra on Flexible Pavement Performance
• Development of a Simplified Design Procedure for Determining Layer Thickness in Long-Life Pavements
• Effect of Measured Three-Dimensional Tire–Pavement Contact Stress on Pavement Response at Asphalt Surface
• Environmental Effects on Deformation and Smoothness Behavior of Early-Age Jointed Plain Concrete Pavements
• Experimental and Analytical Investigations of the Mechanistic Effects of Dowel Misalignment in Jointed Concrete Pavements
• Fracture Behavior of Functionally Graded Concrete Materials for Rigid Pavements
• Implications of Uncertainty in Distress Measurement for Calibration of Mechanistic–Empirical Performance Models
• MnLayer: High-Performance Layered Elastic Analysis Program
• Variation of Crack Width over Time in Continuously Reinforced Concrete Pavement
• Windows-Based Top-Down Cracking Design Tool for Florida: Using Energy Ratio Concept