ELI5: Explain Like I'm 5

Unused highway

A highway is a big road that is used mostly by cars. Sometimes, a highway will not be used very often, and it can become what is called "unused." This means that not many people are driving on it, so it looks like a big, empty road in the middle of nowhere. Highways can become unused for a lot of reasons, like when an area no longer needs it, or when a new highway is built and takes the place of the old one.
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