What does sign A3 instruct drivers to do?

Sign A3, which commonly depicts a stop sign, instructs drivers to stop and proceed when safe. This sign is crucial for ensuring road safety as it requires drivers to bring their vehicle to a complete stop at the designated stopping point, which is often at an intersection or a pedestrian crossing.

Once the driver has stopped, they must assess the situation to determine whether it is safe to proceed. This means yielding to any pedestrians in the crosswalk or other vehicles that have the right of way. The purpose of this sign is to prevent accidents by ensuring that drivers are fully aware of their surroundings before continuing on their journey.

In this context, continuing to drive at full speed, yielding to all traffic at all times, or turning immediately would not comply with the instruction provided by sign A3. Doing so could lead to dangerous situations on the road.