Which type of highway has full control of access?

Freeways are designed with full control of access, meaning that vehicles can enter and exit only at designated points such as interchanges and ramps. This design allows for a higher speed of travel and minimizes interruptions from local traffic, enhancing safety and efficiency.

Unlike freeways, expressways may have at-grade intersections or direct access to intersecting roads, which can create more potential conflicts for vehicles. Primary highways may serve a variety of functions and can include intersections and direct property access, while county roads typically have even less control over access and may allow direct access from adjacent properties. Therefore, the defining characteristic of freeways is their strict control of access, contributing to safer and more efficient travel compared to road types that allow for more direct access points.