What type of road is primarily designed to provide regional continuity with limited access?

The type of road that is primarily designed to provide regional continuity with limited access is a freeway. Freeways are engineered to facilitate long-distance travel and connect multiple regions or cities while minimizing interruptions and enhancing safety. They do this by having few entry and exit points, allowing for uninterrupted high-speed travel, which is essential for efficiency in the transportation network.

In contrast, major arterials and expressways also serve to connect different areas but tend to have more connections and intersections, making them less suitable for continuous regional transit where access needs to be more restricted. Local roads primarily serve individual properties and neighborhoods, focusing on short-distance travel and community access rather than regional connectivity. Thus, the freeway stands out as the appropriate choice for its specific function in enabling smooth, long-distance transport across broader landscapes.