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National Household Travel SurveyPre- and Post-9/11 Data Documentation

National Household Travel Survey Pre- and Post-9/11 Data Documentation

National Household Travel Survey
Pre- and Post-9/11 Data Documentation

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