Investigation of Increase in Roughness Due to Environmental Factors in Flexible Pavements Using Profile Data from Long-Term Pavement Performance Specific Pavement Studies 1 Experiment

Perera, Rohan W.; Al-Rawashdeh, Abdalla S.; SME

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Investigation of Increase in Roughness Due to Environmental Factors in Flexible Pavements Using Profile Data from Long-Term Pavement Performance Specific Pavement Studies 1 Experiment

2017-10-01
By Perera, Rohan W. ; Al-Rawashdeh, Abdalla S.

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English

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Details:

Creators:

Perera, Rohan W. ; Al-Rawashdeh, Abdalla S.

Perera, Rohan W. ; Al-Rawashdeh, Abdalla S. Less -
Corporate Creators:

SME
Contributors:

Wiser, Larry
Corporate Contributors:

United States. Federal Highway Administration ; Turner-Fairbank Highway Research Center

United States. Federal Highway Administration ; Turner-Fairbank Highway Research Center Less -
Subject/TRT Terms:

[+]

Data Collection Flexible Pavements Pavement Performance Roughness
Publication/ Report Number:

FHWA-HRT-17-049 ; HRDI-30/10-17(WEB)E

FHWA-HRT-17-049 ; HRDI-30/10-17(WEB)E Less -
Resource Type:

Tech Report
Geographical Coverage:

United States
OCLC Number:

1038019842
Contracting Officer:

Wiser, Larry
Corporate Publisher:

United States. Federal Highway Administration
Abstract:

From the start of the Long-Term Pavement Performance (LTPP) Program, the longitudinal profiles along the two wheelpaths at test sections have been collected using an inertial profiler. In December 1996, starting with the K.J. Law T-6600 inertial profiler, all profilers used in the LTPP Program have collected profile data along the center of the lane in addition to collecting data along the two wheelpaths. The change in the profile along the center of the lane in flexible pavements was expected to be affected mainly by environmental effects. The goal of this project was to evaluate the changes in the International Roughness Index (IRI) along the center of the lane at Specific Pavement Studies 1 test sections over time and identify environmental and subgrade parameters that contribute to an increase in IRI along the center of the lane. The following activities were performed for this project: (1) analyze the center of the lane IRI (CLIRI) and mean IRI (MIRI) (i.e., average IRI of the left and the right wheelpaths) at test sections to evaluate changes over time, (2) compare the change in IRI for the center of the lane with the change in MIRI at the test sections, (3) identify subgrade and environmental parameters that contribute to an increase in IRI along the center of the lane, (4) perform a detailed evaluation to identify how the CLIRI changes for a select group of test sections, and (5) develop models to predict the change in CLIRI at the test sections.
Format:

PDF
Funding:

DTFH61-14-C-00021
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:f78363af7b5ca01e40c5cb7d33ac23d77a1cda191e2fa68d9b95d6397c6d7833
Download URL:

https://rosap.ntl.bts.gov/view/dot/37829/dot_37829_DS1.pdf
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Investigation of Increase in Roughness Due to Environmental Factors in Flexible Pavements Using Profile Data from Long-Term Pavement Performance Specific Pavement Studies 1 Experiment

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