United States Department of Transportation
i
Electrical engineering research support for FDOT Traffic Statistics Office
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2010-03-01
[PDF-4.91 MB]
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Alternative Title:Electrical engineering research support for FDOT Transportation Statistics Office.
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Abstract:The aim of this project was to provide electrical engineering support for the telemetered traffic monitoring sites (TTMSs) operated by the Statistics Office of the Florida Department of Transportation. This project was a continuation of project BD-543-3. The project consisted of four main efforts that are detailed in this report. The first effort was to conduct lightning surge suppression field tests to charactertize the lightning surge environment of TTMS in-pavement sensors. The second effort was to develop segmented sensor interface electronic improvements for more accurate detection of segment closures on an extruded polymer segmented sensor. This effort was reduced at the request of the FDOT and funding is being sought from the Federal Highway Administration (FHWA) for continued development. The third task was to provide support for use of the Sensys wireless traffic detection system for short-term traffic count applications. The fourth effort was to monitor loop ground resistance and inductance, and piezoelectric sensor voltage outputs at 2 TTMSs. The goal of this effort was to idenitfy the effects of sealant degradation on the electrical characteristics of the in-pavement sensors.
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