What is the background color of vertical traffic signs when located in roadwork zones?

Question

DentroTest · Accepted Answer

Vertical signs in roadwork zones have the same meaning as permanent signs, but they are visually distinguished by having a yellow background. This color change (from the usual white to yellow) aims to alert the driver to the temporary situation and the presence of roadworks, indicating that extreme caution must be exercised. White is used for permanent signs, and red is generally used for prohibition or danger borders, not as a specific background for roadworks.

What is the background color of vertical traffic signs when located in roadwork zones?

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