Direction sign height

Quick answer：

The height of direction signs is governed by specific standards and regulations to ensure visibility and safety. In the United States, for example, the Manual on Uniform Traffic Control Devices (MUTCD) provides guidelines for sign sizes and heights based on various factors such as the speed of traffic, distance from the sign, and the type of road. These signs are typically mounted at heights ranging from 5.5 to 12 feet above the road surface. Other countries have their own guidelines for sign heights.