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Title: SIGN LUMINANCE AS A METHODOLOGY FOR MATCHING DRIVER NEEDS, ROADWAY VARIABLES, AND SIGNING MATERIALS
Accession Number: 00492053
Record Type: Component
Availability: Find a library where document is available Abstract: The widespread use of retroreflective materials for information, regulation, and warning signs and the inclusion of retroreflective materials in many official standards suggest that a framework of luminance standards for minimum visual performance be adopted. Such a construct assumes that a variety of signing materials are available from which predictions of performance may be made. A methodology is provided to compare signing materials in a variety of placements, road geometries, and distances for existing types of retroreflective materials. The study compares the performance of retroreflective materials for existing headlamps and under many circumstances of use. Information is also provided on allowances for such factors as complex nighttime surroundings, the unalerted driver, and the relative importance of sign priority.
Supplemental Notes: This paper appears in Transportation Research Record No. 1213, Human Performance and Highway Visibility: Design, Safety, and Methods. 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
Monograph Accession #: 01414055
Authors: WOLTMAN, H LSzczech, T JPagination: p. 21-26
Publication Date: 1989
Serial: ISBN: 0309048095
Features: Figures
(6)
; References
(16)
; Tables
(7)
TRT Terms: Old TRIS Terms: Subject Areas: Geotechnology; Highways; Materials; Operations and Traffic Management; I35: Miscellaneous Materials; I73: Traffic Control
Files: TRIS, TRB, ATRI
Created Date: Mar 31 1990 12:00AM
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