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NHTS / NPTS Downloads

2001 NHTS - Version 4.0, July 2005


Release Notes
Errata

Datasets

File Format
Download Size (MB)
Installed Size (MB)
SAS Transport
63
434
DBase .dbf
66
672
ASCII .csv
61
445

 

Replicate Weights

Description*
Download Size (MB)
Installed Size (MB)
Household-level Weights
92
112
Person-level Weights
408
514
Long Trip File Weights
74
94
* For analysis of the Vehicle file, use the household-level replicate weight. For analysis of the Travel Day file, use the person-level replicate weight multiplied by 365. See Users Guide sections 7-D and 7-E for additional information.

 

Trip Chain Datasets* for 2001 NHTS and 1995 NPTS

File Format
Download Size (MB)
Installed Size (MB)
SAS
80
646
* For additional information, see the Trip Chaining handout

 

Source Code

Title
Description
Formats.sas SAS PROC FORMAT library
Import.sas Provides example source code to import the contents of the SAS transport file

 

1995 NPTS


Release Notes

Datasets

File Format
Download Size (MB)
Installed Size (MB)
SAS Transport
33
229
DBase .dbf
30
236
ASCII .csv
30
237

 

Source Code

Title
Description
Formats.sas SAS PROC FORMAT library
Import.sas Provides example source code to import the contents of the SAS transport file
se.shtml SAS macro to calculate standard errors

 

1990 NPTS


Datasets

File Format
Download Size (MB)
Installed Size (MB)
SAS Transport
9
67
ASCII .csv
10
82

 

Travel Day with Adjusted Weights*

File Format
Download Size (MB)
Installed Size (MB)
SAS
6
57
* For additional information, see the Summary of Travel Trends, Appendix 3

 

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