Signs and symbols required by this Subpart shall be visible at all times when the work is performed, and shall be removed or covered immediately when hazards no longer exist. Directional signs, other than automotive traffic signs specified in paragraph (g) of this section, shall be white with a black panel and a white directional symbol. The recommended size for all temporary traffic control signs including road construction signs, construction traffic signs, road construction signs and maintenance areas or road construction and maintenance signs will be referred to in Table 6F-1 of MUTCD. To identify the different types of construction signs you need, you should conduct a risk assessment to discover all of your site hazards before implementing measures to reduce the likelihood or impact of each hazard, including installing and maintaining site warning signs of construction.
For example, warning signs for deepwater construction sites should only be used in projects where deep water poses a potential risk to visitors and workers, and would be placed in a highly visible location near water. Diamond-shaped road construction signs are usually 48 x 48 for highways and highways, 36 x 36 and 24 x 24 for conventional roads. However, the types of signs required will vary greatly depending on your project, so the Occupational Health and Safety Management Regulations (199) state that a thorough risk assessment must be carried out before work begins. There are countless construction warning signs, due to the wide variety of hazards on the construction site.
Employers have a legal obligation to show warning signs on construction sites and take steps to minimize the risk of injury. In road construction, orange acts as an indicator for a driver because it is associated with work on the road. For example, fragile roof site warning signs would only be applicable on construction projects where roofing work was performed, whereas a Men at Work sign would always be required to mark roadworks. If you want to install the ConeBoss sign permanently on the cone, simply screw the sign onto the cone using the two small holes provided.
The standards for sign design and signal application shown here, as well as for other traffic control devices, are contained in the Manual on Uniform Traffic Control Devices (MUTCD).