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TRB’s National Cooperative Freight Research Program (NCFRP) Web-Only Document 4: Identification and Evaluation of Freight Demand Factors focuses on the identification of independent variables that may be used to explain gross measures of freight demand over time.

Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2012. Identification and Evaluation of Freight Demand Factors. Washington, DC: The National Academies Press. https://doi.org/10.17226/22820.

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8.5 x 11 |  DOI: https://doi.org/10.17226/22820

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