You are driving in the right lane on an expressway. You should move into the left lane when:

You should always watch for merging vehicles when on on an expressway. Adjusting your speed or moving into another lane will ensure that other drivers can enter smoothly and safely.

• Traffic is heavy but moving steadily.
• The weather is bad and roads are slippery.
• Traffic is slow in your lane and cars are in the left lane.
• Traffic is light and cars are merging onto the expressway from the right.