Transportation

The Interstate Highway System, which extends 46,876 miles (75,440 km)[108]

Everyday personal transportation in the United States is dominated by the automobile driving on one of 13 million roads.[109] As of 2003, there were 759 automobiles per 1,000 Americans, compared to 472 per 1,000 inhabitants of the European Union the following year.[110] About 40% of personal vehicles are vans, SUVs, or light trucks.[111] The average American adult (accounting for all drivers and nondrivers) spends 55 minutes driving every day, traveling 29 miles (47 km).[112] The civil airline industry is entirely privately owned, while most major airports are publicly owned.

The four largest airlines in the world by passengers carried are American; Southwest Airlines is number one.[113] Of the world's thirty busiest passenger airports, sixteen are in the United States, including the busiest, Hartsfield-Jackson Atlanta International Airport.[114] While transport of goods by rail is extensive, relatively few people use rail to travel, within or between cities.[115] Mass transit accounts for 9% of total U.S. work trips, compared to 38.8% in Europe.[116] Bicycle usage is minimal, well below European levels.[117]