1. Regulatory signs:
Are mostly circular in shape and are of two types prohibitive and mandatory.
i. Prohibitive Signs: These are the regulatory signs that are coded with red circles. The prohibitive signs signify negative instructions i.e. what drivers and pedestrians ought not to do.
ii. Mandatory Signs: These are the regulatory signs that are coded with blue circles but with no red borders. These signs signify positive instructions – i.e. what drivers and pedestrians ought to do. Examples of Regulatory Signs (Mandatory):
2. Informative Signs:
Informative signs are usually designed and shaped in rectangular form. The signs provide guidance instructions. Examples:
3. Warning Signs:
These signs are usually designed arid and shaped in triangular form, mostly with red perimeters. Note that there are also some warning signs that have an inverted triangle which means “YIELD OR GIVE WAY’
4. Stop Sign:
This is a prohibitive sign usually with an 8-sided traffic sign. The stop sign is the only traffic sign that has an 8-sided shape. The sign means “come to a complete stop before entering” or “proceed when it is safe to do so”.