When driving through a mountain pass, which color on the road status panel indicates that the use of snow chains or winter tires is mandatory?

Question

DentroTest · Accepted Answer

The correct answer is the RED panel. Road status panels in mountain passes have the following meanings:   Green: It begins to snow. Trucks are forbidden from overtaking.   Yellow: Snow on the road. Trucks and articulated vehicles are prohibited. Cars and buses max speed 60 km/h.   Red: Road covered in snow. Mandatory use of chains or special winter tires (max speed 30 km/h). Trucks, articulated vehicles, and buses are prohibited.   Black: Road impassable. Traffic is prohibited for all vehicles.

When driving through a mountain pass, which color on the road status panel indicates that the use of snow chains or winter tires is mandatory?

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