Caution Work in Progress Signage A caution work in progress signage is a device that warns people of the ongoing work activity in a certain area. It is usually a yellow sign with black letters and symbols that say “Caution Work in Progress” or “Caution Work Zone”. It can also have a picture of a person working, a hard hat, or a shovel. The sign is placed near the entrance or the boundary of the work area to inform people of the potential hazards and avoid accidents. To know more about our wide range of products, Please see our product list.
