| American Highway Users Alliance
Interest group representing motor vehicle users and businesses promoting highway safety and efficiency. Site includes news updates and Rules of the Road publication information.
| Bygone Byways
Descriptions of current and former US routes 66, 80, 99, and 101 as well as other notes.
| Corporate Sponsor Adopt A Highway Program
Lists the steps which may be taken for Adopt-A-Highway Litter Removal Service of America, Incorporated to manage the section which is requested.
| Heartland Expressway
A proposed divided highway running between Rapid City, South Dakota and Denver, Colorado, also known as High Priority Corridor 14 of the Intermodal Surface Transportation Efficiency Act of 1991. Site includes maps, project status, and various other facts.
Links to state transportation resources throughout the country including weather, cams, reports, and hotel reservations.
Includes the Interstate Guide, the List of Interstate Business Routes, and the Interstate Shield Gallery. Extensive coverage.
Covers the respective region of the country. Includes historic maps, planning documents and reports, and photos.
Compilation of lists specifically for motorcyclists who prefer scenic or winding routes.
| Road Trip USA
Great detail on various at-grade long-distance routes.
| Route 40 - National Road
Guide to the first federally-funded road in the U.S. (1800s) and the route which followed it later (US 40).
Listings which include scenery descriptions, road conditions, and points of interest.
Traffic reports for cities and other travel information.
| Southern Highroads Trail
A designated scenic highway going through Georgia, Tennessee, North Carolina and South Carolina. Official tourism site.
| The Road Information Program
Nonprofit organization promoting policies which are designed to improve traffic conditions.