What color is the sign that indicates the entrance to a motorway or expressway?
Highways and motorways
Explanation
The signs indicating the **entrance to a motorway or dual carriageway** are **blue**. This can be deduced from the information about vertical signs indicating the location on a motorway or dual carriageway. For example, the S-574 sign, which indicates the kilometer you are at on a motorway or dual carriageway, is blue.
This blue color is characteristic of signs related to motorways and dual carriageways, differentiating them from other signs that may have different colors depending on their function or the state of the road. For example, roadwork signs are yellow, but these do not indicate the entrance to a motorway or dual carriageway.
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