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Title: RESEARCH PAYS OFF--CONNDOT USES LASER VIDEODISCS IN PHOTOLOGGING
Accession Number: 00462202
Record Type: Component
Availability: Find a library where document is available Abstract: This article describes how the Federal Highway Administration facilitated the evaluation of the use of optical laser videodisc technology in photolog-image storage, retrieval, and viewing. A laser videodisc is a "write once" storage medium that resembles a 12-inch-diameter silvery phonograph record. Each side of the videodisc can contain up to 54,000 still-frame pictures, the equivalent of 540 miles of unidirectional roadway photolog. The production of a disc is described. In Connecticut, a total of 540 miles of selected highway routes was photologged in order to produce a demonstration videodisc. Videodisc premastering and production equipment varies considerably in capability as do industry techniques and methods. The entire highway photolog of Connecticut, both full-format and close-ups, can be stored on 15 videodiscs. Photolog on laser videodiscs has several advantages over film, including denser information storage, extremely fast random access, and greater physical durability. ConnDOT personnel have recommended that additional photolog libraries be located throughout the state in various facilities. It is estimated that with the establishment of 10 laser videodisc libraries, the resultant reduction in the number of field trips would lead to a savings of $4 million over 5 years - twice the savings resulting from an equivalent expenditure on 6 film libraries.
Supplemental Notes: Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
Corporate Authors: Transportation Research Board 500 Fifth Street, NW Pagination: p. 20-21
Publication Date: 1986-9
Serial: TRT Terms: Old TRIS Terms: Subject Areas: Design; Geotechnology; Highways; Planning and Forecasting; Research; I21: Planning of Transport Infrastructure
Files: TRIS, TRB
Created Date: Feb 28 1988 12:00AM
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