How Does VDOT Decide How Often a City or Town is Located on a Distance Sign?
Distance signs, which are located before the ramps at interchanges, generally show how to the next local community on the interstate. They also show the distances to the next “control city” as designated by the American Association of State Highway and Transportation Officials (AASHTO). A control city is a city on or near the interstate system whose general location can be easily identified, and whose population and character are generators of sufficient traffic to be a focal point for interstate travel.
Distance signs, which are located before the ramps at interchanges, generally indicate the distance to the next local community on the interstate. They also show the distances to the next “control city” as designated by the American Association of State Highway and Transportation Officials (AASHTO). A control city is a city on or near the interstate system whose general location can be easily identified, and whose population and character are generators of sufficient traffic to be a focal point for interstate travel.
