What scenario allows for passing a vehicle on the left?

Passing a vehicle on the left is permitted primarily when it is safe to do so and is in accordance with traffic signs. This scenario emphasizes the importance of both safety and compliance with traffic regulations, which are fundamental to ensuring the well-being of all road users.

In situations where traffic signs indicate that it is permissible to pass, drivers can move to the left lane, provided they ensure that there is no oncoming traffic and that visibility is clear. This careful consideration helps in preventing accidents and maintaining traffic flow.

The other scenarios, such as passing in a school zone or during rush hour traffic, carry specific risks and restrictions that typically prohibit passing to protect pedestrians and reduce congestion. Similarly, on a one-way street, while there might be opportunities to pass without the usual risks associated with two-way traffic, the primary consideration remains the overall safety and legal compliance outlined in traffic laws. Thus, recognizing when passing on the left is safe and permitted is essential for responsible driving.