Legibility distances of smaller letters in changeable message signs with light-emitting diodes: Traffic control devices, visibility and rail-highway grade crossings 2005

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Bibliographic Details
Published in:Transportation research record 2005 (1918), p.56-62
Main Authors: ULLMAN, Brooke R, ULLMAN, Gerald L, DUDEK, Conrad L, RAMIREZ, Elizabeth A
Format: Article
Language:English
Subjects:
Applied sciences
Buildings. Public works
Exact sciences and technology
Ground, air and sea transportation, marine construction
Road operations (signalization, lighting, safety and accessories, snow clearance, acoustical panel, etc.)
Road transportation and traffic
Transportation infrastructure
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ISSN:0361-1981