What does a one-way street sign indicate?

Answer: B — Vehicles must travel in the direction indicated by the sign

A one-way street sign is specifically designed to inform drivers that they must only travel in the direction that the sign indicates. This is crucial for maintaining order and safety on the roads, as it helps prevent collisions and confusion among vehicles. By ensuring that all drivers follow the same direction, the road can accommodate traffic flow more effectively. The sign plays a key role in traffic management, ensuring that vehicles do not enter from the opposite direction and creating a safer environment for all road users. Understanding this concept is vital for anyone learning to drive or preparing for a driving test, as it emphasizes the importance of adhering to traffic signs and regulations for safe driving practices.