|1. Railroad and Highway Mileage, 1875 to 197533|
|2. Freight Volume in Ton-Miles, Domestic Intercity Traffic, by Mode, 1939 to 198034|
|3. Freight Volume in Tons, Domestic Intercity Traffic, by Mode, 1939 to 198036|
|4. Estimated Freight Revenue, Domestic Intercity Traffic, by Mode, 1939 to 197938|
|5. Number of Operating Railroads109|
|6. Mileage Controlled by Major Systems, 1981110|
|7. Railroad Industry Rate of Return on Net Investment111|
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Publication information: Book title: Railroads, the Free Enterprise Alternative. Contributors: Daniel L. Overbey - Author. Publisher: Quorum Books. Place of publication: Westport, CT. Publication year: 1982. Page number: xiii.
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