What information do symbols on roadways indicate?

The symbols on roadways primarily serve to inform drivers about permitted lane usages. These symbols provide vital information regarding the specific rules and regulations for each lane, helping to guide drivers on where to go, which lanes might be designated for certain types of vehicles, or if certain lanes have restrictions based on time or type of vehicle. For instance, you might see symbols indicating that a lane is reserved for buses or high-occupancy vehicles, or perhaps it indicates that a lane is for left turns only. This understanding enhances safety on the road by ensuring that drivers adhere to the necessary traffic flow and regulations associated with each lane.

The other options, while related to roadway safety and navigation, do not capture the primary purpose of symbols. Symbols may hint at increased traffic or merging areas indirectly, but their main focus is providing clear guidance on lane usage to avoid confusion and enhance the efficiency of traffic movement.