During daylight hours, what is the minimum requirement for approved warning devices?

The minimum requirement for approved warning devices during daylight hours is two red flags measuring at least 30 cm by 30 cm. This standard is in place to ensure visibility and safety. The flags are bright and easy to see, which helps to alert other drivers to a potential hazard or roadwork area. The size requirement ensures that the flags are large enough to be noticed from a distance, which is crucial for preventing accidents.

While other options may include devices that can be used for warning and signaling, they may not meet the specific regulatory requirements set forth for use during daylight. For example, using a flare or reflector may be more suitable for nighttime usage when visibility is reduced. However, during daylight, the installed standards prioritize the use of red flags to ensure safety on the roads.