United States Department of Transportation
i
Development of local calibration factors and design criteria values for mechanistic-empirical pavement design.
-
2015-08-01
[PDF-529.67 KB]
Details:
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Publication/ Report Number:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:A mechanistic-empirical (ME) pavement design procedure allows for analyzing and selecting pavement structures based
on predicted distress progression resulting from stresses and strains within the pavement over its design life. The Virginia
Department of Transportation (VDOT) has been working toward implementing ME design by characterizing traffic and materials
inputs, training with the models and design software, and analyzing current pavement designs in AASHTOware Pavement ME
Design software.
This study compared the measured performance of asphalt and continuously reinforced concrete pavements (CRCP)
from VDOT’s Pavement Management System (PMS) records to the predicted performance in AASHTOware Pavement ME
Design. Model coefficients in the software were adjusted to match the predicted asphalt pavement permanent deformation,
asphalt bottom-up fatigue cracking, and CRCP punchout outputs to the measured values from PMS records. Values for reliability,
design life inputs, and distress limits were identified as a starting point for VDOT to consider when using AASHTOware
Pavement ME Design through consideration of national guidelines, existing VDOT standards, PMS rating formulas, typical
pavement performance at time of overlay, and the data used for local calibration.
The model calibration coefficients and design requirement values recommended in this study can be used by VDOT with
AASHTOware Pavement ME Design as a starting point to implement the software for design, which should allow for more
optimized pavement structures and improve the long-term performance of pavements in Virginia.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type:
