| Entire Report |
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(77KB) |
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Chapter 1. The NHTS and 9/11 |
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(7KB) |
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| Pre- and Post-9/11 Data Files |
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| NHTS 2001--Overview |
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| Chapter 2. Weight Construction |
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(12KB) |
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| Initial Pre-9/11 and Post-9/11 Person Data Sets |
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| Person-level Weight |
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| Reweighting—Questions and Answers |
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| Adjustment for Data Splitting |
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| Raking |
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| Trimming |
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| Long-distance Trip Data Sets |
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| Long-distance Trip Weights |
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| Chapter 3. Replicate Weight Construction |
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| Person-level Replicates |
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| Replicate Construction |
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| Adjustment for Delete-One Jackknife Method |
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| Raking |
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| Long-distance Trip Replicates |
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| Chapter 4. Description of Data Files |
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(2KB) |
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| Structure of 2001 NHTS Pre-9/11 and Post-9/11 Data Files |
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| Derived Data Sets |
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| Data Dictionary |
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| Table 1. Structure of 2001 NHTS Pre-9/11 and Post-9/11 Data Files |
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(3KB) |
Excel
(15KB) |
CSV
(1KB) |
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| Table 2. Derived Data Sets |
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(5KB) |
Excel
(14KB) |
CSV
(1KB) |
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| Chapter 5. Using the Data |
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(7KB) |
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| Travel Concepts |
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| Weighting the Data |
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| Evaluating the Impact of 9/11 on Long-Distance Trip Travel Pattern |
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| Calculating the Standard Error |
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| Data File Conventions |
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| Appendix A: Codebook |
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(258KB) |
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(91KB) |
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(32KB) |
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| Appendix B: Data Dictionary |
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| Pre-9/11 Long |
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HTML
(1.59MB) |
Excel
(461KB) |
CSV
(189KB) |
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| Pre-9/11 Person |
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HTML
(751KB) |
Excel
(231KB) |
CSV
(76KB) |
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| Post-9/11 Long |
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HTML
(1.59MB) |
Excel
(459KB) |
CSV
(191KB) |
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| Post-9/11 Person |
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HTML
(784KB) |
Excel
(241KB) |
CSV
(78KB) |
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| Appendix C: Public Use Data Files |
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(132.79MB) |
| Appendix D: Control Totals and Adjustment Factors |
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| Table 1. Person Control Totals and Adjustment Factors Used in Weighting of Pre-9/11 NHTS Data |
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(25KB) |
Excel
(22KB) |
CSV
(4KB) |
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| Table 2. Person Control Totals and Adjustment Factors Used in Weighting of Post-9/11 NHTS Data |
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(32KB) |
Excel
(23KB) |
CSV
(5KB) |
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| Appendix E: Abbreviations, Travel Concepts, and Glossary of Terms |
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(32KB) |
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