Where should a driver avoid stopping or parking to prevent blocking traffic?

Stopping or parking alongside or opposite any street excavation or obstruction is essential for maintaining the flow of traffic and ensuring safety. When a driver parks in such areas, it can lead to significant delays for other vehicles, as well as create hazards for both motorists and pedestrians who may need to navigate around these obstructions. By avoiding these spots, drivers help prevent overcrowding on the roadway and maintain a clear path for emergency vehicles and others.

The other choices, while they may involve scenarios to be cautious about, do not directly address the critical need to keep traffic flowing freely and safely. For example, parking next to any parked vehicle may not inherently block traffic but could create tight situations that hinder movement. Stopping on a one-way street can still allow for traffic movement in the opposite direction, depending on the situation, and stopping in front of driveways may inconvenience homeowners but does not necessarily create a blockage on the road itself. Therefore, avoiding areas near street excavations or obstructions stands out as a particularly important guideline for responsible driving behavior.