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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?

  • What about TeleNav data? – DPSSpatial Dec 21 '17 at 18:10
  • If it may be open data then the place to ask is the Open Data Stack Exchange. – PolyGeo Dec 22 '17 at 5:28
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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.

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Speed limit data is available with the Google Maps API with premium plan using the roads API

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