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Title: RESEARCH PAYS OFF--NYSDOT IMPROVES MATERIALS AND INSTALLATION METHODS FOR LOOP DETECTORS FOR LOOP DETECTORS
Accession Number: 00457975
Record Type: Component
Availability: Find a library where document is available Abstract: Although loop detectors are widely used, several factors adversely affect their reliability. Experience has shown that loops do not require maintenance for the first 2 years and then begin to experience a 25% failure rate. Studies traced the cause to nonuniformity of installation methods and materials, or to unsuitable conditions at the time of installation. NYSDOT in cooperation with the Federal Highway Administration conducted research which led to some answers. Study of installation methods showed that several modifications in the installation process could improve reliability. Research also led to changes in the type of wire materials and sealants used. To encourage standardized loop installation, NYSDOT prepared a report for an informational seminar, and a research report. A videotape showing correct installation tehniques was also prepared for the FHWA. The benefits of the project have already been demonstrated. Results indicate that the new materials and installation techniques will at least double the trouble-free life of traffic loops. It is estimated that there will be an annual reduction of 700 loop replacements which will give a saving of more than $1 million each year. Additional savings will result from decreases in motorist delay and inconvenience.
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Pagination: p. 20-21
Publication Date: 1986-7
Serial: TRT Terms: Subject Areas: Administration and Management; Data and Information Technology; Design; Highways; Maintenance and Preservation; Materials; Planning and Forecasting; Research; I10: Economics and Administration
Files: TRIS, TRB
Created Date: Sep 30 1988 12:00AM
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