No Entry Sign - Universal Prohibition Symbol for Traffic and Safety #1982159 (License: Personal Use)

This iconic prohibition sign features a thick red circular border enclosing a white field with a prominent red diagonal slash from upper left to lower right. It universally conveys “no entry,” “do not enter,” or “prohibited access” in road traffic, industrial zones, and restricted areas. The design adheres to international standards such as ISO 7010 and Vienna Convention on Road Signs and Signals.

Used on websites covering traffic regulations, safety training, transportation infrastructure, or signage design; supports user intent to understand legal signage, compliance requirements, or visual communication standards.