What is the purpose of speed limit signs?

Speed limit signs are designed to inform drivers of the maximum legal speed they are allowed to travel on a particular stretch of road under optimal conditions. This is crucial for maintaining road safety, regulating traffic flow, and minimizing accidents. These signs give clarity to drivers about the expected speed, encouraging compliance with traffic laws and contributing to safer driving conditions for all road users.

While the concept of minimum speed does exist in certain circumstances, primarily on highways where too slow driving can impede traffic flow, it is not the primary purpose of typical speed limit signs. Similarly, average speed suggestions or specific instructions about construction zones are not the main function of standard speed limit signs. The primary intention is to ensure that drivers operate their vehicles within the set maximum speed to enhance safety on the roadway.