Final answer:
A diamond-shaped symbol in a lane indicates no overtaking allowed.
Step-by-step explanation:
A diamond-shaped symbol in a lane usually indicates no overtaking allowed. This means that drivers are not allowed to pass other vehicles in that lane. The symbol represents a solid diamond shape with a diagonal line running from top left to bottom right.
For example, if you see this symbol on a two-lane road, it means that overtaking is prohibited and you should not attempt to pass another vehicle in that lane, as it can be dangerous.
It is important to pay attention to and understand road signs to ensure safe driving and follow traffic regulations.