What constitutes a roadway?

The definition of a roadway specifically refers to a portion of a highway that has been improved and designed for vehicular travel. This means that the surface is constructed or maintained to accommodate the safe and efficient movement of vehicles, including cars, trucks, and motorcycles. Features like pavement, signage, and appropriate shoulders are typically included to facilitate vehicular traffic.

While other options may seem related to roads or paths, they do not accurately describe the concept of a roadway. For instance, pedestrian traffic and dirt paths may involve public use, but they lack the specific improvements for vehicular travel that characterize a roadway. Thus, option B is the most accurate and appropriate choice in defining what constitutes a roadway.