When is it appropriate to stay in the left lane on a multi-lane road?

Staying in the left lane on a multi-lane road is appropriate when you are passing slower vehicles. This is primarily because the left lane is typically designated for faster-moving traffic or for overtaking slower vehicles. Staying in the left lane while passing allows you to complete the maneuver safely and efficiently, ensuring that faster-moving vehicles can continue to navigate without disruption.

In many jurisdictions, driving in the left lane without the intent to pass can be discouraged or even illegal, as it may lead to congestion and frustration among other drivers who wish to proceed at a higher speed. Being mindful of this rule promotes safer and more effective traffic flow.

In contrast, staying in the left lane is not appropriate when preparing for a left turn or making right turns, as these actions would require using the appropriate lanes well ahead of the turn to ensure lane discipline and avoid accidents.