(Above) There are many buildings which don’t seem to have a road near them. That’s because this is a poor section, a slum, and no one has mapped it. There ARE roads there, but they may not have street names, and they certainly can’t be found on maps.
I found out about unmapped areas in “The Address Book: What Street Addresses Reveal About Identity, Race, Wealth, and Power”, by Deirdre Mask. She explains that “People often think of their street names and house numbers as banal. But they’re an essential part of proving your identity. Want to register for school? Open a bank account? Build credit and start a business? Show proof of address.” The government is in no big hurry to map these place and give these people addresses…because then they can qualify for aid, and they can VOTE.