Development of a laser-based sensor to measure true road surface deflection.

Prozzi, Jorge Alberto; Claudel, Christian; Pasupathy, Praveen; Verma, Ambika; Hernandez, Joaquin B.; University of Texas at Austin. Center for Transportation Research

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Development of a laser-based sensor to measure true road surface deflection.

2017-04-01
By Prozzi, Jorge Alberto ; Claudel, Christian ; Pasupathy, Praveen ; ...

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Creators:

Prozzi, Jorge Alberto ; Claudel, Christian ; Pasupathy, Praveen ; Verma, Ambika ; Hernandez, Joaquin B.

Prozzi, Jorge Alberto ; Claudel, Christian ; Pasupathy, Praveen ; Verma, Ambika ; Hernandez, Joaquin B. Less -
Corporate Creators:

University of Texas at Austin. Center for Transportation Research
Corporate Contributors:

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration

Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Deflection Deflection Tests Deflectometers Lasers Laser Scanner Laser System Load Tests Network-level Study
Publication/ Report Number:

FHWA/TX-16/0-6873-1 ; Technical report 0-6873-1

FHWA/TX-16/0-6873-1 ; Technical report 0-6873-1 Less -
Resource Type:

Tech Report
Geographical Coverage:

United States ; Texas

United States ; Texas Less -
Corporate Publisher:

University of Texas at Austin. Center for Transportation Research
Abstract:

The high-speed measurement of accurate pavement surface deflections under a moving wheel at a networklevel

still remains a challenge in pavement engineering. This goal cannot be accomplished with stationary deflectionmeasuring

devices. Engineers recognize the usefulness of pavement deflection data to evaluate and monitor pavement

response and existing pavement structural conditions. Network-level studies of pavement structure are being

performed but have major limitations such as lack of accurate measurements, no true deflection is measured at any

point, complexity, and safety concerns. The purpose of this project is to develop a laser measuring system for networklevel

studies that continuously moves along the pavement at speed above 10 mph.
Format:

PDF
Funding:

TxDOT project number 0-6873
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:7c0214ed9a3fc417d164a50df74fa4941df14bed37940e1d0a45a9634cbcf388
Download URL:

https://rosap.ntl.bts.gov/view/dot/32186/dot_32186_DS1.pdf
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Development of a laser-based sensor to measure true road surface deflection.

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