Which of the following functions do supplementary panels on traffic signs perform?
Signage: Vertical signs
Explanation
Complementary panels are signs placed below other traffic signs to specify or clarify their meaning. These panels provide additional information that helps drivers better understand the conditions or restrictions that apply in a particular situation.
- For example, the **S-800** panel indicates the distance from the sign to a hazard or warning.
- The **S-810** panel shows the length of the hazardous section, that is, how many meters or kilometers the hazard extends.
- The **S-820 and S-821** panels indicate the duration of a prohibition in meters, following the direction of the arrow.
- The **S-870** panel indicates that the prohibition or warning only applies to the indicated lane or branch.
These examples show how complementary panels clarify and detail the information of the main signs, helping drivers make informed and safe decisions on the road. Therefore, their main function is to specify the meaning of a sign.
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