road rail air waterways
Transport and Communications
Automobile
is the most popular type of transportation in the United States for shorter distances.
Interstate Highway System (47,714 mi)
Worst traffic:
• Seattle, WA
• San Francisco, CA
• Denver, CO
• Dallas, Austin, Houston, TX
• Atlanta, GA
• Washington D.C.
• Boston, MA
• St. Louis, MO
Intercity Bus
is the least expensive way to travel long distances in the US.
Amtrak
is a 21,000mile system of railroads serving more than 500 stations across the country.
Air Transportation
is the preferred method of travel for trips over 300 miles.
Statistics
•There are about 15,000 public and private airports.
•HartsfieldJackson Atlanta International Airport is the busiest airport in the world.
•From 1970 to 1999, passenger traffic on certified air carriers increased 373%.
•The major international carriers are Delta Air Lines,
American Airlines, United Airlines and US Airways.
Water Transportation
is largely used for freight.