OpenStreetMap is the worldwide, crowdsourced geographic database. It contains roadways, paths, and cycleways for every country on earth. Features may be attributed with road type, road name, and other roadway characteristics.
The US Census Bureau’s TIGER/Line database provides roads data for the United States at three levels of detail: primary roads, secondary, and local. Local roads includes city streets, rural roads, walkways, alleys, and private roads. Road features are attributed with the road name and the MAF/TIGER feature class code.
A comprehensive 1:100,000 scale dataset detailing over 400,000 miles of highways, including Interstates, US and State Routes, and arterials in the United States and Puerto Rico. Each feature is attributed with the highway number, segment length, and the beginning and ending milepost of each road segment.