What is a common misconception about traffic control devices?

The choice regarding the necessity of traffic control devices solely during peak traffic hours reflects a common misconception because these devices are essential at all times when work is occurring in or near roadways. Traffic control devices serve to protect both workers and drivers by providing necessary information and warning of potential hazards. Their presence is crucial even during off-peak hours, as accidents and incidents can occur regardless of traffic volume. In fact, reduced traffic may lead to drivers being less vigilant, which can make work zones particularly dangerous. Therefore, it is important to have appropriate traffic control measures in place continuously while work is ongoing, rather than solely relying on increased presence during busy periods. This understanding underscores the need for consistent safety practices in all traffic scenarios.