Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Miles, Not Seasonally Adjusted

Frequency:  Annual

Notes:

Content: Computed By NBER By Successive Subtraction Of Mileage Owned (First Track Only) On June 30 Of Each Year. Covers Class I, Ii, And Iii Railroads, Nonoperating Subsidiaries, And Some Railways Not Filing Annual Reports. Up Through June 30, 1908 Increases Include Switching And Terminal Companies; Thereafter, Do Not. Source: Interstate Commerce Commission, "Annual Report Of The Statistics Of Railways In The United States", 1926, P.Xcviii.

This NBER data series a02083a appears on the NBER website in Chapter 2 at http://www.nber.org/databases/macrohistory/contents/chapter02.html.

NBER Indicator: a02083a