Workers exposed to traffic or construction equipment within the TTC zone are required to wear high-visibility safety apparel that meets the Performance Class ____ or ____.

High-visibility safety apparel is essential for the protection of workers exposed to traffic or construction activities within a Temporary Traffic Control (TTC) zone. The standards established for high-visibility clothing include Performance Class options that denote the level of visibility provided to wearers.

Performance Class 2 and 3 are specifically designed for workers who are in environments with varying levels of traffic or equipment movement. Class 2 vests and garments provide a moderate level of visibility, suitable for situations where workers may be near vehicle traffic. Class 3 apparel offers the highest level of visibility, appropriate for workers who are in very high-risk environments, including those working on or near roads where traffic speeds are greater.

Selecting apparel that adheres to these performance classes ensures that workers are adequately protected and can be seen by drivers or operators of vehicles and equipment, significantly reducing the risk of accidents and injuries on the job. The requirement for high-visibility safety apparel is both a safety measure and a compliance necessity within the scope of traffic control and work zone safety.