Driver's License Test Prep
Oregon Practice Defensive Driving

Why does the Oregon Driver Manual recommend driving in the center of your lane?

  1. A.
    It keeps the most space between you and parked cars.
  2. B.
    It leaves room to move left or right. Correct
  3. C.
    It helps drivers behind you see your brake lights sooner.
  4. D.
    It satisfies a state lane-position law.
The Why

The answer is "It leaves room to move left or right."

Driving in the center of your lane gives your vehicle room to move left or right to avoid a potential problem: a sudden stop ahead, a vehicle drifting toward you from another lane, or debris in the road. If you are already hugging one edge, you have used up half of your lateral escape route. Center-of-lane is the defensive default.

Why the others miss

The traps in the wrong answers

A. It keeps the most space between you and parked cars.

The parked-car rule is the opposite of staying centered: the manual tells you to keep extra space from parked cars by moving away from them within your lane. The stated reason for center-of-lane is room to move left or right. Misreading: Misreads the adjacent parked-car bullet on p.28, which says to move away from parked cars without leaving your lane; centering is the general side-cushion rule, not the parked-car rule.

C. It helps drivers behind you see your brake lights sooner.

Brake-light visibility belongs to the cushion behind you, which you manage by keeping a steady speed and gently pressing the brake before slowing. Lane position does not change when a driver behind sees your brake lights; centering is about room to move left or right. Misreading: Confuses the Side Space Cushion rule with the Space Cushion Behind section on p.28, which says brake lights alert drivers behind that you are slowing; that rule is about signaling and steady speed, not lane position.

D. It satisfies a state lane-position law.

There is no Oregon law requiring you to drive in the exact center of your lane; the recommendation is defensive, not legal. Misreading: Treats a defensive driving recommendation ('it is safest to drive in the center of your lane') as a statutory requirement; the manual frames it as safest practice, not law.

The Rule

This question tests your knowledge of Defensive Driving in Oregon. Source: Oregon Driver Manual, "Side Space Cushion," p.28..

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