Rail transportation in the United States consists primarily of freight shipments along a well integrated network of standard gauge private freight railroads...

railroads in North America Rail transport in Mexico#History Rail transportation in the United States Railroad land grants in the United States Railroad...

Transportation in the United States is governed by laws and regulations of the federal government. The Department of Transportation is responsible for...

a list of the operating passenger rail transit systems in the United States. This list does not include intercity rail services such as the Alaska Railroad...

shipments. Transportation is the largest source of greenhouse gas emissions in the United States. The overwhelming majority of roads in the United States are...

The United States is serviced by a wide array of public transportation, including various forms of bus, rail, ferry, and sometimes, airline services. Most...

Plans for high-speed rail in the United States date back to the High-Speed Ground Transportation Act of 1965. Various state and federal proposals have...

The United States Department of Transportation (USDOT or DOT) is one of the executive departments of the U.S. federal government. It is headed by the...

in shaping the economic, social, and geographic landscape of the United States, laying the foundation for much of the nation's modern transportation infrastructure...

The establishment of America's transcontinental rail lines securely linked California to the rest of the country, and the far-reaching transportation...