It’s important to be able to immediately understand the information posted on placards along streets or highways.
The color of road indicators signifies what type of information they contain. For example, warning signs have a yellow background with black lettering or symbols. The shape of a placard also conveys information. Most warning signs have a diamond shape for easy and quick recognition. However, there are exceptions, such as the rectangular sharp bend in the road indicator and the pennant-shaped No Passing Zone placard.
They are strategically placed for your protection as well as the protection of others, warning drivers of approaching conditions that may be dangerous. They are there for a reason and are therefore important to heed.
A sign prohibiting behaviour likely to increase or cause danger
These signs should be used for “Do Not” commands. For example – to indicate that smoking is not allowed in a particular area. In the workplace they should be used to reinforce instructions prohibiting dangerous activities.
A sign giving warning of a hazard or danger
These signs should be used to make people aware of a nearby danger.
For example, a flammable liquid store.
A safety sign prescribing specific behaviour
These signs should be used to indicate actions that must be carried out in order to comply with statutory requirements.
A sign giving information on emergency exits, first aid, or rescue facilities
These information signs should be used to indicate escape routes, emergency exits and first aid equipment.