School sign

• The yellow background it used to gain attention by catching the eye

• The triangle and rectangle act as borders and highlight the key information

• The picture and the word 'school' are used to reinforce each other and mean the same thing 

• The white background behind the word and image allow them to stand out

• The sign uses very bright and bold colours that catch the eye this achieves its purpose of being a  warning sign

• Red can often stand for danger as as this is a warning sign the red triangle is warning people of a potential nearby hazard.

• The sign has an assumed meaning and purpose the word 'school' alone does not infer a hazard however, it is a commonly used sign that we are all exposed to and therefore is a message we all understand to have a generic meaning.