some devices used for temporary work zone situations?
These devices include the orange and black signs, cones, drums, barricades, arrow panels, pavement markings, and flag's. They alert people to possible dangers or mark off or prevent entry into the work zone.
You can use signs like is pictured in under.
This sign will say to other people about work zone situation.
And make some one be carefull and avoid work zone situation.
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