Lanes and turnsQuestion 42 of 78

What does a solid white line mean?

  1. You can change lanes if the lane is clear.
  2. You must not change lanes.
  3. You can pass on this side.
  4. The lane is for buses only.
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Correct answer: You must not change lanes.

Solid white lines show that lane changing is not permitted. Broken white lines show that lane changing is permitted.

Source: Driver’s Guide: Cars and Light Trucks (Government of Alberta, Spring 2026), Pavement markings, page 41

Practice the topic "Lanes and turns"

Questions last reviewed: 18 October 2026