Road Traffic Signs and Plates

Quick answer：

Road traffic signs and plates are used to convey information to road users, including drivers, pedestrians, and cyclists. These signs are designed to regulate, warn, or guide traffic, and are governed by traffic laws and regulations. They can range from regulatory signs (e.g., speed limits, stop signs), warning signs (e.g., curves ahead), to informative signs (e.g., roadwork information, distances to cities). International standards, such as those set by the International Organization for Standardization (ISO), provide guidelines for the design and placement of traffic signs across different countries.