DMV Permit · Lane Positioning

On a multi-lane road with traffic moving in both directions, which lane should you generally use for normal driving?

Correct answer

The rightmost lane that is not for parking or exiting

  1. A The rightmost lane that is not for parking or exiting
  2. B The leftmost lane
  3. C Whichever lane is moving fastest
  4. D The middle lane only

Why this is the answer

On a multi-lane road, the right lane is for normal driving and the left lane is for passing. The 'keep right except to pass' rule reduces lane-changing and the conflicts it creates. Slow vehicles in the left lane disrupt traffic flow and force faster traffic to pass on the right, which is more dangerous than passing on the left. Some states fine drivers for camping in the left lane. The middle lane (on three-lane roads) is for through traffic going at the normal flow. Always use the right lane for slow driving, when towing, when leaving the highway soon, or when other traffic is faster than you. The 'fast lane' is not a privilege earned by who can drive there fastest; it is a passing lane.
Source: Standard state driver handbook, Lane Use

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About this topic: Lane Positioning

Keep right except to pass; use the rightmost lane that suits your speed and exit. Lane-discipline questions are common because lane errors cause a high share of multi-vehicle highway crashes. This is one of 6 DMV Permit questions on lane positioning, each with a full explanation on a single study page.

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