Which statement regarding public highways is accurate?

Public highways are indeed accessible for all types of vehicles, making this statement accurate. This includes not only passenger cars but also commercial vehicles, bicycles, and in many cases, farm machinery. Public highways are constructed and maintained to accommodate a variety of traffic, ensuring a safe and efficient means of transportation for everyone.

The other options do not accurately describe the nature of public highways. They are not maintained by private individuals; this responsibility typically falls under local, state, or federal government entities. Additionally, public highways are not specifically designed only for commercial vehicles; rather, they serve a broader purpose by providing a transportation route for all types of vehicles. Lastly, traffic laws are applicable on public highways, as these laws are essential for maintaining safety and order on the roads.