FAQs - Distance Signs on interstate and freeway highways
What is a control city?
A control city is a major city on or near the interstate or freeway system, is a significant generator of traffic or a focal point for travel, and is used as a destination to provide long-range navigational information. The American Association of Highway and Transportation Officials (AASHTO) is responsible for approving and publishing the list of control cities for the interstate system.
A control city is a major city on or near the interstate or freeway system, is a significant generator of traffic or a focal point for travel, and is used as a destination to provide long-range navigational information. The American Association of Highway and Transportation Officials (AASHTO) is responsible for approving and publishing the list of control cities for the interstate system.
