Massachusetts Permit Practice Test

A single solid white line across a road at an intersection indicates what action must be taken?

1. Yield to the oncoming traffic

2. Stop behind the line for a traffic signal or sign

3. Proceed if the intersection is clear

4. Turn left only if safe

The correct answer is: Stop behind the line for a traffic signal or sign

A single solid white line across a road at an intersection serves as a clear visual cue indicating that drivers are required to stop behind the line for a traffic signal or sign. This line is often placed in locations just before stop signs or traffic signals, guiding drivers to halt their vehicles at the appropriate point, ensuring safety and compliance with traffic regulations. Stopping behind the line helps maintain order at the intersection and allows for safe movement for both pedestrians and vehicles, thereby reducing the risk of accidents. In different contexts, such as at road markings or lane changes, other signals might instruct different actions, but the specific purpose of a solid white line in this scenario clearly dictates that stopping is necessary. This emphasis on stopping behind the line is crucial for maintaining traffic flow and safety at intersections, which can often be points of congestion and potential hazards.