What is the purpose of a "Speed Limit" sign?

A "Speed Limit" sign serves to indicate the maximum allowable speed that vehicles can safely travel on a particular stretch of road. This is a crucial aspect of traffic control and safety. By clearly displaying the highest speed permitted, the sign helps establish a guideline for drivers, ensuring that they do not exceed speeds that could be hazardous to themselves or others. Maintaining speeds within these limits can greatly reduce the likelihood of accidents, as excessive speeding is a major factor in traffic collisions.

The distinction is significant because, while some signs may suggest safe driving speeds or inform about minimum speeds, the primary function of a "Speed Limit" sign is to impose a ceiling on how fast drivers can lawfully operate their vehicles. This regulation not only facilitates smoother traffic flow but also enhances overall road safety by reducing the risks associated with high speeds.