AHTD cracking protocol application with automated distress survey for design and management.
-
2011-03-09
-
Details:
-
Alternative Title:AHTD cracking protocol application with automated distress survey for design and management, MBTC 3016, final report.
-
Creators:
-
Corporate Creators:
-
Corporate Contributors:
-
Subject/TRT Terms:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:Manual surveys of pavement cracking have problems associated with variability, repeatability, processing
speed, and cost. If conducted in the field, safety and related liability of manual survey present challenges
to highway agencies. Therefore automated processes for cracking analysis have been sought after in the
past decades. Processed cracking results need to be compiled based on a standard or a protocol so
pavement engineers can apply the results in design and management. Pavement cracking protocols vary in
details. Cracking definitions in the Highway Performance Monitoring System (HPMS) and the
Mechanistic-Empirical Design Guide (MEPDG) represent two efforts in defining cracking applications
for pavement condition monitoring and prediction modelling of pavement condition in design
respectively. This paper presents the findings of using a fully automated process with the Automated
Distress Analyzer (ADA) to establish a viable method for analyzing cracks based on 2D laser images for
HPMS and MEPDG. It is determined that automated survey is possible for both protocols as long as
careful design and implementation are made and errors are controlled in the process as much as possible.
In addition, an analysis of wheelpath wandering and its effect on cracking analysis is conducted by
varying positions of wheelpaths and their sizes.
-
Format:
-
Funding:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type: