The **stop sign** marked on the roadway indicates that the driver must **stop their vehicle** before the stop line. This action is necessary to **yield to vehicles traveling on the road you wish to enter**. This means you must pay attention to both sides of the road, ensuring no vehicles are approaching before proceeding.


The **continuous transverse line** accompanying the stop sign reinforces the obligation to stop. This line crosses the road widthwise and requires all vehicles to stop and follow the indications of the present signs. However, the line alone does not mandate stopping; it is the combination with the stop sign that makes it mandatory.


Therefore, when encountering a stop sign on the roadway, it is crucial to come to a complete stop and yield to vehicles approaching from **both sides** of the road, thus ensuring a safe merge into traffic.