system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Who notifies Google about newly made roads for their maps?

Do they keep tabs on that sort or thing, or do they wait for their yearly map imaging to add it in?
gpt
There are companies specialized in this sort of thing. They monitor local government announcements, planning permissions, etc., and when they see a new road is being constructed, they will go and collect the data.

Google's maps business is big enough for them to own some companies like that as a subsidiary, but sometimes they might just hire external companies to gather the data and provide it in a format that's easy to plug into the Maps database.