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Proceedings Paper

Fiber grating traffic monitoring systems
Author(s): Marley Kunzler; Robert Edgar; Eric Udd; Tad Taylor; Whitten L. Schulz; Wesley Kunzler; Steven M. Soltesz
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Paper Abstract

Previous studies have shown the capability of fiber Bragg gratings (FBGs) to monitor components of strain on bridges and structures. In past months, Blue Road Research and the Oregon Department of Transportation embedded long-gage FBG sensors into the Interstate 84 freeway east of Portland, Oregon to determine the feasibility of retro-install and for use of these sensors in monitoring freeway traffic speeds under conditions similar to loop inductors, piezo-ceramic weigh-in-motion (WIM) systems, and other vehicle monitoring devices. The objective of the study was to develop a working traffic sensor system with the potential to be more durable, reliable, informative, and cost-effective than currently available traffic sensors. A primary purpose of the freeway installation was to test the sensors for vehicle classifier and counter applications. In addition to discussion of the advantages of using FBGs for traffic classifiers and systems over conventional sensing methods, this paper overviews the installation and summarizes the use of FBG traffic sensors for vehicle counting and classification.

Paper Details

Date Published: 28 June 2002
PDF: 6 pages
Proc. SPIE 4696, Smart Structures and Materials 2002: Smart Systems for Bridges, Structures, and Highways, (28 June 2002); doi: 10.1117/12.472559
Show Author Affiliations
Marley Kunzler, Blue Road Research (United States)
Robert Edgar, Oregon Dept. of Transportation (United States)
Eric Udd, Blue Road Research (United States)
Tad Taylor, Blue Road Research (United States)
Whitten L. Schulz, Blue Road Research (United States)
Wesley Kunzler, Blue Road Research (United States)
Steven M. Soltesz, Oregon Dept. of Transportation (United States)

Published in SPIE Proceedings Vol. 4696:
Smart Structures and Materials 2002: Smart Systems for Bridges, Structures, and Highways
S.-C. Liu; Darryll J. Pines, Editor(s)

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