|M1 Series Signs - Numbered Route Markers and Shields|
|M2 Series Signs - Junction Signs|
|M3 Series Signs - Cardinal Direction|
|M4 Series Signs - Special Route|
|M5 Series Signs - Advance Turn|
|M6 Series Signs - Directional Arrow|
Updated 11 February 2019 (M6s revised)
Scripting: Richard C. Moeur
All text and images on this page © Richard C. Moeur. All rights reserved.
Linked sign layout files in PDF format provided courtesy of FHWA's MUTCD website
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