Advanced Ground Instructor (AGI) Practice Exam

Which of the following indicates no passing zones?

1. solid white lines

2. broken yellow lines

3. double solid lines

4. zipper markings

The correct answer is: zipper markings

The correct answer is based on the meaning of road markings regarding passing zones. A zipper marking, which consists of alternating solid and broken lines, is designed as a visual cue that indicates where it is permissible to change lanes and pass other vehicles. This marking is often found in situations where lanes merge and provides drivers with important information about lane changes and passing behaviors. In contrast, while solid white lines denote that lane changes are discouraged or prohibited, and double solid lines indicate that no passing is allowed at any time, zipper markings themselves possess specific designs intended to inform drivers about transitional lane patterns rather than strictly indicating a no-passing zone. Therefore, it is essential to understand the intended purpose of each road marking to interpret traffic rules accurately.