When traffic signs or road marking have an orange color:

1. Correct answer: They mark that you are in a road works site.
2. These are traffic signs or markings on hazardous road sections for which no specific traffic sign was determined.
3. These are temporary traffic signs on a non-urban road only, which are valid for a maximum period of three months.
4. They are painted with special colors, designed to emphasize the signs during special weather conditions.

WhyOrange signs and markings are used only in road works zones. If you see orange, you are in a works area.