Which safety precaution is essential when working near traffic?

Wearing visible clothing is a critical safety precaution when working near traffic. High-visibility clothing, such as reflective vests, ensures that tow truck operators and any personnel in the vicinity are easily seen by drivers. This reduces the risk of accidents or injuries as they attend to their work on or near roadways, where visibility can be compromised, especially in poor weather or low-light conditions.

Utilizing high-visibility gear not only enhances personal safety but also promotes a safer working environment as it alerts oncoming traffic to the presence of workers. The other options, while they may pertain to different aspects of safety or practices, do not provide the same immediate and vital impact in ensuring that personnel are seen and protected while operating near active road traffic.