If my failing memory recalls correctly, Dixie Highway is also called US 1, and goes straight to Key west. It also has sidetracks thru North Miami beach all the way thru Miami proper, into Brickell avenue and then goes close to I-05 and then into homestead and fla city, to Key west, but thre are several name changes.
I think it is mostly called dixie highway thru most of the coastal cities and runs along I-95.
I suggest you get a MOSt curennct consie map of it.
which means all the way thrusome of the most lovelist and nastiest parts of dade county. miami to homestead)