Hey boss, it’s as easy as pie, all you have to do is go to the map and select the desired location, then click on the taxi icon that says “travel to”. Exactly how will vary whether you use PC or console.
For PC you can hit M as in map at any location (indoors or outdoors), and then use your middle mouse button to zoom in and out. If you zoom out far enough by scrolling the middle mouse button down, you can get a list of all the neighborhoods, some of which you might not have unlocked yet. If you know what neighborhood you want you can click on it then hit escape to get an overhead view of the neighborhood. If however you are not sure what neighborhood you want you zoom back in by scrolling your middle mouse button down.
That’s all folks!