Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download Road Signs Pack 1 (Russian) Free.
Road Signs Pack 1 (Russian)
– Single atlased texture
– Three LOD detail
– PDF with the name signs
This pack contains:
– Warning Signs – 46 prefabs ()
– Priority Signs – 16 prefabs
– Prohibitory Signs – 33 prefabs
Included there are two component parts of road.
It can be used in older versions of changing materials.