Interpretive signage typically uses pictures to deliver a message. International symbols are the most commonly used pictures. For example using the international symbol of a person with a dog on a leash means that dogs are allowed on leashes.
The benefit of using international symbols is that they always mean the same thing no matter where you use them and they are well known and easy to understand.
These signs quickly give the viewer a message without having to read any text. It is a quick and efficient way to get your message across.
Interpretive signage can mean that something is allowed or prohibited. The prohibited version will have a red slash across it or a red circle with a slash.