Warning Signs, Plaques & Object Markers

Warning signs call attention to unexpected conditions on or adjacent to a highway, street, or private roads open to public travel and to situations that might not be readily apparent to road users. Warning signs alert road users to conditions that might call for a reduction of speed or an action in the interest of safety and efficient traffic operations. The use of warning signs should be kept to a minimum as the unnecessary use of warning signs tends to breed disrespect for all signs. In situations where the condition or activity is seasonal or temporary, the warning sign should be removed or covered when the condition or activity does not exist.

MUTCD PART 2 - Chapter 2C

Warning Signs and Object Markers view pdf | view table 2C.2 Quick Reference: Sign Sizes for Roadway Type view chart