Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Passenger-Miles, Not Seasonally Adjusted

Frequency:  Monthly

Series Is Presented Here As Two Variables--(1)--Original Data, 1920-1935 (2)--Original Data, 1935-1943 Switching And Terminal Companies Are Excluded Throughout. Beginning In 1935, Coverage Excludes "1/2 Combination" And "Observation" Passenger Car-Miles. Source: Interstate Commerce Commission, "Revenue Traffic Statistics Of Class I Steam Railways In The United States".

This NBER data series m03059b appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html.

NBER Indicator: m03059b