I'm looking for street/roads data in California with maximum speed limit attributed. TIGER data doesn't have the speed limit data, and open street map data is only attributed at about 25%. I'm looking for either open source or proprietary data. Is there any available?
TeleAtlas used to have speed limits. It's proprietary though. Not sure if the data is still available after it's acquired by other companies.
Speed limit data is available with the Google Maps API with premium plan using the roads API
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