Driver's License Test Prep
Illinois Practice Road Markings

What do broken yellow lines running down the center of a two-way road mean?

  1. A.
    Turning lanes reserved for left turns only.
  2. B.
    Opposite-direction lanes where passing is allowed. Correct
  3. C.
    Same-direction lanes where lane changes are allowed.
  4. D.
    A no-passing zone marked for both directions.
The Why

The answer is "Opposite-direction lanes where passing is allowed."

Broken yellow lines separate opposite-direction lanes, and passing is allowed. Choice C describes broken white lines; drivers who remember 'broken line means you may cross' without checking the color reach for the same-direction meaning.

Why the others miss

The traps in the wrong answers

A. Turning lanes reserved for left turns only.

Turn lanes are marked with arrows on the pavement, not with a center line color. This answer confuses two-way separators with lane-designation markings that use pavement arrows.

C. Same-direction lanes where lane changes are allowed.

That describes broken white lines, which separate lanes moving the same way. This answer remembers 'broken means you may cross' but forgets to check the color of the line.

D. A no-passing zone marked for both directions.

No-passing zones use solid yellow lines, not broken ones. This answer reads any yellow line as a no-passing signal, treating color alone as the trigger.

The Rule

This question tests your knowledge of Road Markings in Illinois. Source: Illinois Rules of the Road, "Chapter 10: Pavement Markings, Yellow Center Lines," p.79..

More from this topic

Related Illinois questions

More than a book

You just took one Illinois question apart. The book does it for the whole test.

The Illinois book unlocks a free companion: an adaptive study plan, progress synced across your devices, a denser laminate cheat sheet, and a test-day walkthrough. Verify your copy once, usually in seconds; there's nothing extra to buy.

Get the book on Amazon

$18.99 paperback, free companion included.

Free study plan

Your free Illinois study plan

A short run of study emails for the Illinois SOS test: what to drill, the rules people trip on, and a final pre-test checklist. The printable cheat sheet is free to grab either way.

One email a few times a month. No spam, unsubscribe anytime. Privacy.