Intelligent Transportation Systems (ITS) represent the convergence of advanced technologies with current forms of transportation. The result, according to the US Department of Transportation, will be safer, more efficient traveling for the private and commercial sectors. This site focuses mainly on ground transportation, including cars, trucks, and trains in both metropolitan and rural areas. One of the most interesting sections is "ITS In Your State," which outlines specific ITS projects around the country. There is also a very large document library that contains hundreds of ITS reports and studies, as well as some slides from speeches on the subject.