Final answer:
When the road is marked with one broken line and one solid line, it indicates a passing zone where you may pass slower-moving vehicles on the side of the broken line but not on the side of the solid line.
Step-by-step explanation:
When the road is marked with one broken line and one solid line, it indicates a type of lane marking called a 'passing zone.' In this situation, you may pass slower-moving vehicles in the lane adjacent to the broken line, but it is not allowed to pass on the side of the lane adjacent to the solid line. The solid line indicates that it is unsafe to pass on that side.
For example, let's say you are driving on a two-lane road and there is a car in front of you traveling at a slower speed. If the road is marked with one broken line on your side and one solid line on the other side, you can legally pass the car by crossing into the adjacent lane on the side of the broken line. However, you should proceed with caution and only pass when it is safe to do so.