NOTE: Amtrak revised
its methodology for collecting and calculating on-time performance data in
2001. This resulted in minor changes in short-distance, long-distance, and
system on-time performance percentages starting in 2001 compared with previous
years.
SOURCES:1994–1999—National
Railroad Passenger Corp. (Amtrak), Amtrak Annual Report (Washington, DC:
Annual Issues). 2000–2004—Amtrak,
personal communication, October 2003 and February 2005.