What advice would you give-

[Kevy Baby]

Originally Posted by JWBear

Segments of freeway may be named, but those names are only associated with a route number, in many cases, because that route follows that freeway segment for a portion of its length.

With two Southern CA exceptions already noted: the "Hollywood" freeway refers to both a portion of the 101 AND the entire 170. And the "San Diego" freeway refers to both a portion of the I-5 AND the entire 405.