Source: National Bureau of Economic Research  

Release: NBER Macrohistory Database  

Units:  Millions of Revenue Passengers, Not Seasonally Adjusted

Frequency:  Annual

Series Is Presented Here As Two Variables--(1)--Original Data, 1917-1927 (2)-- Original Data 1926-1939. Data Include Passengers On Subways, Elevated Trains, Street Car, And Buses Operated By Street Car Companies, Their Affiliates, And Companies Formerly In The Street Railway Business Along With Passengers On Independent Buslines. Source: American Transit Association Files; "Bus Transportation", Various Issues.

This NBER data series a03012bb appears on the NBER website in Chapter 3 at http://www.nber.org/databases/macrohistory/contents/chapter03.html.

NBER Indicator: a03012bb