Pavement Structural Evaluation at the Network Level

Rada, Gonzalo R.; Nazarian, Soheil; Visintine, Beth A.; Siddharthan, Raj V.; Thyagarajan, Senthil; AMEC Environment and Infrastructure, Inc.; University of Texas at El Paso. Center for Transportation Infrastructure Systems; University of Nevada, Reno. Department of Civil and Environmental Engineering

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Pavement Structural Evaluation at the Network Level

2016-09-01
By Rada, Gonzalo R. ; Nazarian, Soheil ; Visintine, Beth A. ; ...

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English

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Creators:

Rada, Gonzalo R. ; Nazarian, Soheil ; Visintine, Beth A. ; Siddharthan, Raj V. ; Thyagarajan, Senthil

Rada, Gonzalo R. ; Nazarian, Soheil ; Visintine, Beth A. ; Siddharthan, Raj V. ; Thyagarajan, Senthil Less -
Corporate Creators:

AMEC Environment and Infrastructure, Inc. ; University of Texas at El Paso. Center for Transportation Infrastructure Systems ; University of Nevada, Reno. Department of Civil and Environmental Engineering

AMEC Environment and Infrastructure, Inc. ; University of Texas at El Paso. Center for Transportation Infrastructure Systems ; University of Nevada, Reno. Department of Civil and Environmental Engineering Less -
Contributors:

Sivaneswaran, Nadarajah
Corporate Contributors:

United States. Federal Highway Administration. Office of Infrastructure Research and Development ; Turner-Fairbank Highway Research Center

United States. Federal Highway Administration. Office of Infrastructure Research and Development ; Turner-Fairbank Highway Research Center Less -
Subject/TRT Terms:

[+]

Deflectometers Evaluation And Assessment Pavement Performance Structural Health Monitoring
Publication/ Report Number:

FHWA-HRT-15-074
Resource Type:

Tech Report
Geographical Coverage:

United States
Contracting Officer:

Sivaneswaran, Nadarajah
Corporate Publisher:

United States. Federal Highway Administration. Office of Infrastructure Research and Development
Abstract:

As State transportation departments consider structural adequacy as part of their routine pavement management system (PMS) activities by incorporating deflection testing, it is important to advance their practices from measuring deflection using falling weight deflectometers, which involves a slow, stop-and-go operation and requires lane closures, to a more viable alternative for network-level pavement management applications. The development of moving deflection testing devices that can measure pavement responses at traffic speeds represents this more viable alternative. The modern versions of the moving deflection testing devices that are actively used today include the Traffic Speed Deflectometer (TSD) and a Rolling Wheel Deflectometer (RWD).

The goal of this project was to establish a reliable measure of the structural condition of bound pavement layers above the unbound base layer as it deteriorates over time under traffic and environmental loading based on moving pavement deflection technology measuring at traffic speeds. Moreover, this measure needed to be robust enough in capturing the structural condition or deterioration of the pavement layer notwithstanding the seasonal and spatial variation in base and subgrade layers. As part of the project, a literature review was conducted, and questionnaires were developed for device manufacturers, owners, and users, which were then followed up by interviews. Both the TSD and RWD were found to be potentially viable devices. Based on this finding, a work plan was developed and implemented to evaluate if the two devices met a minimum set of specifications related to the structural evaluation of pavements at the network level including accuracy and precision of deflection measurements, monitoring applied load, operating speed, and distance between deflection measurements. Field evaluations and validation analyses were completed in accordance with the work plan. Ultimately, analysis methodologies and processes were developed for incorporating pavement structural information within highway agencies’ PMS applications.
Format:

PDF
Funding:

DTFH61-12-C-00031
Collection(s):

Federal Highway Administration
Main Document Checksum:

[+]

urn:sha256:7e3be82f6586b8b467a26f9efba31d4c61a7013b5bf60e003b623cb15df9fc7c
Download URL:

https://rosap.ntl.bts.gov/view/dot/38472/dot_38472_DS1.pdf
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Pavement Structural Evaluation at the Network Level

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