Where is the best place to find free (if possible) detailed US city street data containing speed, lanes, and class of road attributes for ALL links in all cities?

(OSM and Tiger data, unfortunately, do not have full complete street attribute tables for speed and lane for all links)

(Data from local or state open data portals are hit or miss with complete attributes)

  • Commercial GPS sellers obviously have this information since their GPS include it. You might contact them (or their sources), though I'm guessing it won't be free. Google maps MAY also have this information, but it's unlikely to be free in bulk. – Barry Carter Nov 23 '17 at 15:25
  • If you're doing this for personal (non-commercial) purposes, you might be able to decode the IMG file of an existing GPS, some of which are available free on the Internet. – Barry Carter Nov 26 '17 at 14:40

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