Vehicular traffic signs are those static elements, usually placed on poles and/or rails, with universal symbols (with some modifications according to the standard used in the country) that fulfill the function of regulating and warning road users, whether drivers, pedestrians or cyclists.

It is important that they are properly placed, visible and easy to understand, as well as that they are kept in good condition and replaced when necessary.

They are classified into three main types:

• Warning signs: These indicate the presence of a hazard, such as a sharp curve, crosswalk, or railroad crossing.
• Regulatory signs: These regulate traffic, such as speed signs, prohibition signs, or mandatory signs.
• Information signs: provide information to road users, such as direction signs, service signs, or distance signs.