How frequently should traffic control devices be cleaned?

Traffic control devices play a crucial role in ensuring safety and efficiency in work zones. It is essential for these devices—including signs, cones, and barriers—to remain visible and effective at all times. The frequency of cleaning should be dictated by the condition of the devices rather than a fixed time schedule.

Choosing to clean traffic control devices as needed, or when they are dirty, ensures that all signs and signals remain clearly visible and effective for drivers. Dirty or obscured devices can lead to confusion and potentially hazardous situations for motorists, which undermines the purpose of these safety measures.

Regular inspections should be conducted to determine when cleaning is necessary, reflecting that the ultimate priority is maintaining safety standards for both workers and drivers. This adaptive approach emphasizes responsiveness to conditions rather than adhering to a predetermined cleaning schedule that might not be sufficient in all circumstances.