To what distance should lamps that warn of hazards be visible in sunlight?

The correct distance for lamps that warn of hazards to be visible in sunlight is 500 feet. This standard is important for ensuring safety, as it allows drivers to recognize potential hazards well in advance, thereby providing them with sufficient reaction time to respond appropriately. Visibility at this distance in bright daylight conditions helps to mitigate accidents by ensuring that the warning signs are noticeable even under challenging lighting conditions. This distance is particularly crucial for roadside hazards, construction areas, or any situation where quick awareness is necessary to maintain safety on the road.