Railroad tracks; Electric railroads; Railroads; Canals
Four sets of railroad tracks with fields on either side. Electric poles and lines run parallel to the tracks. A train is on the left set of tracks with a person sitting on the top of one of the cars. A second train is on one of the middle sets of...
The trucking industry is the largest freight sector, making up about 70 percent of all domestic shipment in the United States and contributes greatly the American economy. About 10 billion tons of goods are shipped annually and of that, about...
