Toolbox Talk: Warning Signs & Barricades

When a hazard cannot be removed, we usually alert people by warning them of the hazard. This can be done both verbally and with signs. 

Signs, posters, stickers, and tags with warning messages can be used. Such as, "Men Operating Above," "Road Construction Ahead," "Eye Protection Required," and "Do Not Operate." In general, warning signs conform to the following color configurations: 

Danger Signs: Used where an immediate hazard exists. Red is the predominant color, with black outlines and lettering and a white lower panel. 

Potential Hazard Signs: Yellow is the predominant color, with a black upper panel and “Caution” in yellow lettering on a black panel. 

Exit Signs: Usually lettered in red letters not less than six inches high on a white field. 

Safety First Signs: White with a green upper panel with white letters to convey a message. 

Unheeded Warning Signs 

How often have we noticed signs on the highway warning "Construction Ahead," only to then pass the area and see no evidence of any work or workers? How often have we seen signs "Danger Work Overhead" on a site and not observed any such activity for days on end? When the hazard is eliminated or the work is completed, the warning should be removed or people will lose faith in warning signs. 

Help Make Warnings More Meaningful 

• Use the proper message and sign color for the hazard indicated. 

• Place the message in areas where they can be easily seen. 

• Back up the printed message with pictograms, barricades, and verbal warnings. 

• Remove the messages and barricades when the hazard is removed or work has ceased. 

Property warnings will help make our site a safer place to work.