On a road with two or more lanes traveling in the same direction, drivers should:

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On multi-lane roads, the basic idea is lane discipline: use the rightmost lane for normal driving and reserve the left lanes for passing. Staying in the right lane except to pass keeps traffic flowing smoothly and reduces the risk of collisions from drivers weaving between lanes. If you’re moving with the traffic and aren’t impeded, stay to the right and only move left to pass, then return to the right. Always signal before changing lanes and check mirrors and blind spots. The center lane isn’t the default travel lane in everyday driving, so the right-hand lane rule is the safest and most widely applied approach.