Final Answer:
Passing aloud is allowed when one center line is broken.
Explanation:
Passing aloud becomes permissible when one center line is broken because it indicates a single lane of traffic. This configuration typically occurs on roads where there's a single lane in each direction, and the broken center line allows for safe overtaking when conditions permit. When one center line is broken, drivers in either direction may pass other vehicles, assuming it is safe to do so considering visibility, oncoming traffic, and road conditions. This delineation is meant to inform drivers of the potential for overtaking while ensuring caution and adherence to traffic rules.
When both center lines are solid, it signifies a no-passing zone in both directions, prohibiting overtaking due to reduced visibility or increased risks like bends, hills, or limited sightlines. The solid center lines indicate that passing is unsafe and not legally permitted. Conversely, when both center lines are broken, it typically designates a multi-lane road or highway, allowing for passing in both directions when safe. However, drivers should still exercise caution and only pass when it's safe and legally allowed, following traffic regulations.
Understanding road markings and their meanings is crucial for safe driving practices, ensuring the safety of all road users by adhering to established traffic guidelines. Proper interpretation of road markings helps drivers anticipate appropriate actions, promoting smoother traffic flow and reducing the risk of accidents.