What does the marking inside the red circle mean?

[StOmar]

The marking inside the red circle is a No Entry sign, indicating that all vehicles are prohibited from entering. Here is relevant information about No Entry signs: 1. No Entry sign introduction: It prohibits all vehicles from entering and is installed at the exit of one-way roads or the entrance of prohibited sections. 2. Function of No Entry signs: These signs are placed at the entrance of prohibited roads. Their purpose is to remind drivers not to proceed in the forbidden direction, serving as a warning to prevent traffic accidents. Proper use of No Entry signs can effectively reduce traffic accidents and protect life and property safety.