What does the sign indicate?

Correct answer

It prohibits passage and informs me of the direction of traffic; I may not cross the line formed by the cones.

The line of cones shown in the image indicates that passage is prohibited, meaning that drivers are not permitted to proceed beyond that point. It also gives information about the direction of traffic, guiding vehicles on the direction they must follow. The line formed by the cones must not be crossed, as the cones delimit the restricted area and serve to guide the flow of traffic correctly. Therefore, drivers must follow the indicated direction and must not enter the prohibited areas marked by the sign and cones.