Which category includes Federal Interstate routes and expressways?

Which category includes Federal Interstate routes and expressways?

• A. Primary highway (hard surface)
• B. Secondary highway (hard surface)
• C. Light-duty road (improved surface)
• D. Unimproved road (unsurfaced)

Answer: (A)

When highways are categorized, the label often reflects how important and capable the road is for long-distance, high-volume travel, and whether it has a paved surface. Federal Interstate routes and expressways are built as the main, high-capacity links between regions and cities, designed for high speeds and heavy traffic, and they are paved for durability and smoothness. That combination fits the primary highway (hard surface) category, which describes the main network of paved, major routes that handle the bulk of long-distance travel. The other options describe roads that are either not as important in the network, or that use lighter standards or are not paved, which wouldn’t match interstates and expressways.