When should a work zone be illuminated?

The work zone should be illuminated during nighttime operations or low visibility conditions to ensure the safety of both workers and road users. Proper illumination is crucial in these situations, as it enhances visibility, allowing for better detection of hazards, signage, and equipment. This is particularly important because reduced visibility can lead to accidents, and sufficient lighting helps create a safer environment for everyone involved in the work zone.

Illumination is essential not just when workers are present, but regardless of whether they are actively working at the moment, as it helps to alert drivers to the presence of the construction zone and any potential hazards. Ensuring that the work area is adequately lit, particularly at night or in adverse weather conditions such as rain or fog, is a standard safety measure that significantly mitigates risks associated with reduced visibility.