Type B arrow boards are used for which speed environments?

Type B arrow boards are specifically designed for use in intermediate speed environments, typically ranging from about 25 to 45 miles per hour. These environments often occur in areas where vehicles may still travel at a somewhat higher speed than in low-speed zones, such as on city streets or near construction sites on rural roads.

The design and function of Type B arrow boards are tailored to effectively communicate messages to drivers in these scenarios, providing clear visual signals that can be noticed by drivers who are traveling at these intermediate speeds. They are an essential tool for guiding traffic safely around work zones, ensuring that drivers are aware of possible hazards or changes in the roadway layout.