Monthly data, not seasonally adjusted
The National Railroad Passenger Corporation (Amtrak) officially began service in May 1971. Amtrak serves more than 500 stations in 46 states and operates over a network of more than 21,000 route miles. Ridership is highly seasonal, with July and August being the highest volume months. In 2000, Amtrak introduced high-speed rail service in the northeast U.S., which helped increase ridership.
|Percent change from same month previous year||9.8||-0.5|
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, Operational Data Tables, Table 1.02, available at http://safetydata.fra.dot.gov/OfficeofSafety/ as of October 2011.