What does "Go down Broadway to Thirteenth Street." mean in English for Spanish?

In English for Spanish, "Go down Broadway to Thirteenth Street." means:

Baje por Broadway hasta la calle 13.

Listen to "Go down Broadway to Thirteenth Street.": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

• English for Spanish 4, Level 1, Scene 3