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National transportation statistics 2013.pdf
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Contents：
Introduction
Chapter 1 - The Transportation System
Chapter 2 - Transportation Safety
Chapter 3 - Transportation and the Economy
Chapter 4 - Transportation, Energy, and the Environment
Appendix A - Metric Conversion Tables
Appendix B - Glossary
Appendix C - List of Acronyms and Initialisms
Appendix D - Modal Profiles
Appendix E - Data Source and Accuracy Statements
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