Eli5, why do roads have numbers assigned to them as well as names?

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My kid asked me this question and I didn’t have a good quick answer. Also, I’m not referring to the US Interstate highway system. I am referring to the state and county level.

Any insight is much appreciated!

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6 Answers

Anonymous 0 Comments

The city names the streets in its jurisdiction, even if they also have a U.S. Route or state highway number.

In large parts of the U.S., the streets were there first, back to horse and buggy days. The highways came later, and connected to the busier streets that already had names.

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