For GPS apps like Apple & Google maps, how does it know every street name, exact building names, where there are speed cameras and stop signs etc.

Question

Does someone travel every single area and manually input information or…? I feel so stupid
asking this lol.

In: Technology

Answer 1

alot of people, third parties, and time

they get data from satelite imagery, governments, the google cars etc you see on the road, user reporting for issues, and some human tweaking after alot of data cleansing

[https://blog.google/products/maps/google-maps-101-how-we-map-world/](https://blog.google/products/maps/google-maps-101-how-we-map-world/)
building names businesses are most often reported by users or business owners adding their address in a business profile to google

speed cameras on the road are typically reported by users, alot easier in something like waze, which google would be sharing alot of data with