A semi-automated faulting measurement approach for rigid pavements using high speed inertial profiler data.
-
2009-03-11
-
Details:
-
Creators:
-
Corporate Creators:
-
Subject/TRT Terms:
-
Resource Type:
-
Geographical Coverage:
-
Corporate Publisher:
-
Abstract:Faulting measurements have traditionally been conducted manually using faultmeters. However,
operating any manual device such as a faultmeter close to vehicular traffic is hazardous to the operator
and the traveling public. Automated methods like those associated with high-speed profilers, offer a safer,
more efficient, and cost effective alternative. Therefore, there is a need to develop an automated method
for measuring joint faulting using longitudinal profiles from high-speed profilers.
A study was initiated with a primary objective of determining an appropriate profiler sampling interval to
accurately locate transverse joints. A second objective was to determine how well faulting estimated
from profile elevation compares with faulting measured with a Georgia Faultmeter.
An algorithm was developed which can accurately detect on average 95% of transverse joints from profile
data collected at highway speed using a 0.68 inch (17.3 mm) sampling interval. This algorithm was also
adapted to estimate faulting measured with a Georgia Faultmeter in accordance with the AASHTO R36-
04 Protocol. Although the algorithm results are repeatable it over-estimated the faulting at joints by 0.05
in (1.3 mm) to 0.06 in (1.5 mm) compared to faulting measured with the Georgia Faultmeter.
-
Format:
-
Collection(s):
-
Main Document Checksum:
-
Download URL:
-
File Type: