Practice question

A white edge line on the right side of the roadway helps drivers:

  1. Identify the outside edge of the usable roadway
  2. Know where opposing traffic begins
  3. Find a legal parking lane on every road
  4. Know where passing is required

Answer: A — Identify the outside edge of the usable roadway

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: Idaho Road Signs Practice Practice Questions - Idaho Driver License Knowledge Test Road Signs, Signals, and Pavement Markings Practice Exam →