What must a driver do when exiting an alley or private road in an urban area?

When exiting an alley or private road in an urban area, the driver is required to stop before reaching the sidewalk and yield to both pedestrians and vehicles. This rule is in place to ensure that drivers do not pose a danger to pedestrians who may be using the sidewalk, as well as to ensure they do not collide with vehicles that may already be traveling on the road. Stopping provides the driver with the opportunity to assess the situation, allowing for safe merging into the flow of traffic while ensuring the rights and safety of both pedestrians and other road users are respected.

The other choices do not adequately reflect the necessary caution required when exiting. Yielding only to vehicles overlooks the potential presence of pedestrians who have the right of way on sidewalks. Proceeding without stopping disregards the need for safety checks, while only looking for oncoming traffic fails to account for the possibility of pedestrians or vehicles coming from other directions. It is crucial for the driver to perform a full assessment before merging into active traffic to prevent accidents.