Which type of safety vest should be worn for nighttime flagging operations?

For nighttime flagging operations, the appropriate type of safety vest to wear is Class 3. Class 3 vests are designed to provide the highest level of visibility, especially in low-light conditions, which is crucial for ensuring the safety of both the flagger and the motorists. These vests typically feature more reflective material and a larger surface area that increases visibility from a greater distance and in various environmental conditions, including darkness.

Choosing Class 3 vests is particularly important because during nighttime operations, visibility is significantly reduced, making it essential for flaggers to be seen clearly by approaching traffic. The enhanced reflectivity and brightness of Class 3 vests help mitigate risks associated with visibility, thereby protecting the flagger while they direct traffic safely.

Class 1 and Class 2 vests do not provide the same level of visibility required for nighttime conditions. Class 1 is aimed at low-risk environments and is typically suitable for areas where traffic speeds are low, while Class 2 offers improved visibility over Class 1 but does not meet the requirements necessary for nighttime visibility. Class 4 is not applicable to safety vest classifications under the standard guidelines.