Discussion of Survey Changes and Comparing Estimates

The following tables provide comparisons of the 2002, 1997, and 1993 Commodity Flow Survey (CFS) estimates.

Data users are urged to use caution in comparing estimates from different survey years due to the changes that have occurred...

2002 Commodity Flow Survey

The 2002 Commodity Flow Survey (CFS) is undertaken through a partnership between the U.S. Census Bureau, U.S. Department of Commerce, and the Bureau of Transportation Statistics (BTS), U.S. Department of Transportation. This survey produces data on the...

Appendix D - Standard Classification of Transported Goods Code Information

The commodities shown in this report are classified using the Standard Classification of Transported Goods (SCTG) coding system. The SCTG coding system was created jointly by agencies of the United States and Canadian...

Appendix C - Sample Design, Data Collection, and Estimation

The primary goal for the 2002 Commodity Flow Survey (CFS) is to estimate shipping volumes (value, tons, and ton-miles) by commodity and mode of transportation at varying levels of geographic detail. A secondary objective is...

Appendix A - Comparability with the 1993 and 1997 CFS

The following tables show a comparison of the key characteristics among the 1993, 1997, and 2002 Commodity Flow Surveys.

Acknowledgments

Norman Y. MinetaSecretary

Kirk K. Van TineDeputy Secretary

Rick KowalewskiDeputy Director

Mary J. HutzlerAssociate Director for Statistical Programs...

Appendix B - Reliability of the Estimates

The estimates in this publication may differ from the actual, unknown population values. Statisticians define this difference as the total error of the estimate. When describing the accuracy of survey results, it is convenient to discuss total error...

Table 3. Shipment Characteristics by Mode of Transportation and Distance Shipped for CBSA of Origin: 2002

[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]

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Table B-8. Estimated Measures of Reliability for Inbound Shipment Characteristics by Origin for CBSA of Destination: 2002

[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]

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Table B-1. Estimated Measures of Reliability for Shipment Characteristics by Mode of Transportation for CBSA of Origin: 2002

[Estimates are based on data from the Commodity Flow Survey. Because of rounding, estimates may not be additive]

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