In Washington State, nearly all of the counties provide daily or weekly data exports for lot lines, streets and more. OSM regularly imports this data, but if you go much outside Seattle and are using Google Maps, prepare for a rubbish experience, as Google hasn't bothered to source the data directly from the counties (thus there are many missing and incorrectly drawn roads in the San Juans) and they're relying on a 3rd party vendor that is running a few years behind on pulling county data.
To put this in perspective, in Kitsap county alone they've renumbered nearly 300k lots over the past few years. Google Maps doesn't get those new addresses or road names until its trickled down through USPS (who they're required to notify) then eventually to their data vendor, leaving you with a spotty patchwork of places that Google users have updated to the correct addresses.
Google had a good strategy with sourcing user contributions, but pulling the public domain data that is offered freely for download and is literally the canonical source isn't hard, a small team can manage it for OSM, why is Google paying a 3rd party vendor that gives them trash instead of the latest data?
To put this in perspective, in Kitsap county alone they've renumbered nearly 300k lots over the past few years. Google Maps doesn't get those new addresses or road names until its trickled down through USPS (who they're required to notify) then eventually to their data vendor, leaving you with a spotty patchwork of places that Google users have updated to the correct addresses.
Google had a good strategy with sourcing user contributions, but pulling the public domain data that is offered freely for download and is literally the canonical source isn't hard, a small team can manage it for OSM, why is Google paying a 3rd party vendor that gives them trash instead of the latest data?