Legibility Distances of Smaller Letters in Changeable Message Signs with Light-Emitting Diodes
Traffic control devices, visibility and rail-highway grade crossings ; 2005 ; Washington, D.C.
2005-01-01
7 pages
Held as a session of the 84th TRB annual meeting
Aufsatz (Konferenz)
Englisch
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Legibility Distances of Smaller Letters in Changeable Message Signs with Light-Emitting Diodes
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