Legibility of urban highway traffic signs using new retroreflective materials
Unlighted highway signs, which use newly developed retroreflective materials, were installed along the major expressway in an urban area by the local department of transportation. Photometric measurements of the signs were used to assess their legibility applying the relative visual performance mod...
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Vilnius Gediminas Technical University
2010-09-01
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| Series: | Transport |
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| Online Access: | https://www.mla.vgtu.lt/index.php/Transport/article/view/5784 |
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doaj-a253d4b14aa346379674bc4e52ed95952021-07-02T13:40:28ZengVilnius Gediminas Technical UniversityTransport1648-41421648-34802010-09-0125310.3846/transport.2010.28Legibility of urban highway traffic signs using new retroreflective materialsJohn D. Bullough0Nicholas P. Skinner1Conan P. O’Rourke2Lighting Research Center, Rensselaer Polytechnic Institute, 21 Union St., Troy, NY 12180 USALighting Research Center, Rensselaer Polytechnic Institute, 21 Union St., Troy, NY 12180 USALighting Research Center, Rensselaer Polytechnic Institute, 21 Union St., Troy, NY 12180 USA Unlighted highway signs, which use newly developed retroreflective materials, were installed along the major expressway in an urban area by the local department of transportation. Photometric measurements of the signs were used to assess their legibility applying the relative visual performance model, in comparison to lighted signs, con‐ forming to recommended illumination practices. The calculated visibility of the measured unlighted signs was similar to that of the signs equipped with exterior sign illumination. The practical significance and limitations of the relative visual performance approach are discussed. First published online: 10 Feb 2011 https://www.mla.vgtu.lt/index.php/Transport/article/view/5784highway signsvisibilityvisual performanceretroreflective materials |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
John D. Bullough Nicholas P. Skinner Conan P. O’Rourke |
| spellingShingle |
John D. Bullough Nicholas P. Skinner Conan P. O’Rourke Legibility of urban highway traffic signs using new retroreflective materials Transport highway signs visibility visual performance retroreflective materials |
| author_facet |
John D. Bullough Nicholas P. Skinner Conan P. O’Rourke |
| author_sort |
John D. Bullough |
| title |
Legibility of urban highway traffic signs using new retroreflective materials |
| title_short |
Legibility of urban highway traffic signs using new retroreflective materials |
| title_full |
Legibility of urban highway traffic signs using new retroreflective materials |
| title_fullStr |
Legibility of urban highway traffic signs using new retroreflective materials |
| title_full_unstemmed |
Legibility of urban highway traffic signs using new retroreflective materials |
| title_sort |
legibility of urban highway traffic signs using new retroreflective materials |
| publisher |
Vilnius Gediminas Technical University |
| series |
Transport |
| issn |
1648-4142 1648-3480 |
| publishDate |
2010-09-01 |
| description |
Unlighted highway signs, which use newly developed retroreflective materials, were installed along the major expressway in an urban area by the local department of transportation. Photometric measurements of the signs were used to assess their legibility applying the relative visual performance model, in comparison to lighted signs, con‐ forming to recommended illumination practices. The calculated visibility of the measured unlighted signs was similar to that of the signs equipped with exterior sign illumination. The practical significance and limitations of the relative visual performance approach are discussed.
First published online: 10 Feb 2011
|
| topic |
highway signs visibility visual performance retroreflective materials |
| url |
https://www.mla.vgtu.lt/index.php/Transport/article/view/5784 |
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AT johndbullough legibilityofurbanhighwaytrafficsignsusingnewretroreflectivematerials AT nicholaspskinner legibilityofurbanhighwaytrafficsignsusingnewretroreflectivematerials AT conanporourke legibilityofurbanhighwaytrafficsignsusingnewretroreflectivematerials |
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1721328897936588800 |