Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Millions of Passenger Car-Miles, Not Seasonally Adjusted

Frequency:  Monthly

Series Is Presented Here As Two Variables--(1)--Original Data, 1920-1935 (2)--Original Data, 1935-1943 Data Excludes Switching And Terminal Companies; Combination And Observation Passenger Car-Miles. Data For August-December 1935 Were Computed By Dividing "Revenue Passenger-Miles" By "Passenger-Miles Per Car-Mile." Source: Interstate Commerce Commission, "Revenue Traffic Statistics Of Class I Steam Railways In The United States."

This NBER data series m03057b appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html.

NBER Indicator: m03057b