A sign with a white background and the words 'Do Not Pass' is classified as which type of sign?

A sign with a white background and the message 'Do Not Pass' is classified as a no passing sign. This type of sign is intended to inform drivers that they are prohibited from passing other vehicles in that specific area, often due to visibility issues or the presence of oncoming traffic. The white background signifies that it conveys specific rules that must be followed, and adherence to this sign is essential for maintaining safety on the road.

In this context, no passing signs are crucial for preventing accidents by indicating areas where overtaking another vehicle is dangerous. Such regulations are enforced to enhance safe driving practices, particularly on roadways where passing could lead to collisions. Understanding the function of these signs is vital for any driver as it keeps both themselves and others safe on the road.