Road sign post height

Quick answer：

The height of road sign posts is an important aspect of road safety and traffic management. It ensures that signs are visible to drivers at a distance. In many countries, there are specific regulations governing the minimum height of road sign posts. For instance, in the United States, the National Highway Traffic Safety Administration (NHTSA) provides guidelines for sign post heights, typically between 3 to 6 feet above the road surface, depending on the type of sign and the speed limit of the area.