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INTRODUCTION
The primary goal for the 2012 Commodity Flow Survey (CFS) was to estimate shipping volumes (value, tons, and ton-miles) by commodity and mode of transportation at varying levels of geographic detail. A secondary objective was to estimate the volume of shipments moving...
INTRODUCTION
The estimates presented by the 2012 Commodity Flow Survey (CFS) 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...
The following tables show a comparison of the commodity classification system, industry coverage, sample size, sample weeks, reported mode of transportation, and data items requested for each shipment among the 1993, 1997, 2002, 2007, and 2012 Commodity Flow Surveys (CFS).
Commodity...This section presents two tables for each state on commodity movements originating in and destined to each state. The first table for each state summarizes shipments by major commodities, major destinations, major industries, distance, and modes of transportation. Data on the...