Which side of the road is typically used for passing another vehicle?

Passing another vehicle typically occurs on the left side of the road. This practice is standard in many countries, including the United States, where the driving system follows the right-hand rule. When a driver intends to overtake another vehicle, they signal their intent, check for a clear path, and then move into the left lane to carry out the maneuver safely.

This left-side passing is crucial for maintaining traffic flow and safety, as it allows the driver being passed to continue driving without having to adjust their speed or position. Additionally, many road signs and traffic laws reinforce that passing should only be done on the left, helping to prevent confusion and accidents on the road.