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General

Legacy ID
201

Appendix C. Sample Design, Data Collection, and Estimation

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 from...

Appendix B. Reliability of the Estimates

INTRODUCTION

The estimates presented by the 2012 CFS may differ from the actual, unknown population values. The difference between the estimate and the population value is known as the total error of the estimate. When describing the accuracy of survey results, it is convenient to...

2012 Commodity Flow Survey

GENERAL

The Commodity Flow Survey (CFS) is a joint effort by the Bureau of Transportation Statistics (BTS) and the U.S. Census Bureau, U.S. Department of Commerce. The survey is the primary source of national and state-level data on domestic freight shipments by establishments in mining...

Introduction to the Economic Census

PURPOSES AND USES OF THE ECONOMIC CENSUS

The economic census is the major source of facts about the structure and functioning of the nation’s economy. It provides essential information for government, business, industry, and the general public. Title 13 of the U.S. Code (Sections...

Acknowledgements

U.S. Department of Transportation

Anthony Foxx,Secretary

Victor Mendez,Deputy Secretary

Office of the Assistant Secretary for Research and Technology

Gregory D. Winfree,Assistant Secretary

BUREAU OF TRANSPORTATION STATISTICS

Patricia S. Hu,Associate Administrator and...