is it just one street or is there more

It is more than one street in the same area, you can check out the stars map at walkoffame.com/star-map

It's Hollywood and Vine!

There's a few.

Its just one long street. Just follow the street

But right now don't expect to see a lot of happening around the streets. You can start off exploring from the Madame Tussauds as you can identify where the stars start. I have been there last Friday and literally myself and couple of others on the entire street. Not so many people around

One street with some stars splitting into the adjacent streets. It's a long walk still