I need a contiguous, nationwide USA Road Network with speed limits, distances, etc. I have been using TIGER but the challenge is at state boundaries - where contiguous road segments are split.

Is there any free or commercially available data set that provides this data, besides ESRI/ArcGIS?

  • Could you better define what the issue is? Commented May 26, 2016 at 14:39
  • 1
    Most highway administration's definition of 'road' or 'road segment' makes it difficult to track contiguous paths .... a section was re-paved last year? That's a new segment. Re-aligned? new segment. Different road surface? more than one segment. Change in number of lanes? More than one segment. Some will track north & southbound lanes independently. (this is based off a conversation I had w/ someone from a state agency last summer)
    – Joe
    Commented May 26, 2016 at 18:31

2 Answers 2


OpenStreetMap hosts an open source google maps like database from which you can download all the map elements, from which you can filter all the roads according to the type of road you want. The speed limits should be tagged as described on their wiki.


The National Transportation Atlas Database provides a roadway network and data to accomplish this:

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