Amtrak officially began service in May 1971. Amtrak offers services in 46 states on a network of over 22,000 track miles. Ridership data are highly seasonal, with July and August being very high season months. In 2000, Amtrak introduced a high-speed rail service in the northeast U.S., which helped increase ridership.
|Amtrak Revenue Passenger Miles||May-06||May-07|
|Amtrak revenue passenger miles (thousands)||457,533||492,429|
|Percent change from same month previous year||-0.31||7.63|
NOTE: The current value is compared to the value from the same period in the previous year to account for seasonality.
SOURCE: U.S. Department of Transportation, Federal Railroad Administration, Office of Safety Analysis, available at http://safetydata.fra.dot.gov/OfficeofSafety/, as of August 2007.