What is the minimum diameter of drums used in work zones?

The minimum diameter of drums used in work zones is established to ensure that they are visible and effective for communicating safety information to both pedestrians and motorists. Drums with a diameter of 18 inches are large enough to be easily seen, especially in challenging conditions such as low light or adverse weather. This size also allows them to provide a significant physical barrier, which helps to guide vehicles safely around the work area.

Using drums of this diameter helps meet safety regulations and standards set forth by various traffic safety organizations. Drums that are smaller might not be as effective at drawing attention and could potentially lead to confusion or accidents in and around the work zone. The choice of an 18-inch diameter balances visibility, safety, and practicality, making it the minimum size that should be utilized in these environments.