What indicates a one-way street?

Answer: A — One direction signs and arrows

A one-way street is indicated by signs and arrows that point in a single direction, directing drivers to travel only that way. This is crucial for maintaining the flow of traffic and ensuring safety on the roads. Understanding and following these indicators is vital because they help prevent confusion and potential accidents caused by drivers attempting to go against the flow of traffic. The other options do not accurately represent one-way street indicators. Solid red lights pertain to traffic control and indicate that vehicles must stop, while yellow caution lights alert drivers to proceed with caution but do not indicate direction. No right turn signs regulate turning movements at intersections rather than indicating the flow of traffic on a street. Therefore, the presence of one direction signs and arrows is the key indicator for identifying a one-way street.