README for “2011 National Survey of Speeding Attitudes and Behaviors [Supporting Datasets]” dataset.
Office of Behavioral Safety Research (BSR), National Highway Transportation Safety Administration (NHTSA), U.S. Department of Transportation (USDOT)
2024-01-21

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LINKS TO DATASET
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A. Dataset homepage link:
       https://doi.org/10.21949/1529972 


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SUMMARY OF DATASET
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This dataset supports the conclusions of the report "2011 National Survey of Speeding Attitudes and Behavior (NSSAB)." This is the third in a series of surveys on speeding that have provided data to help further the understanding of driving behavior and to contribute to the development of countermeasures and interventions to reduce speeding. Like the previous studies, this survey yields national estimates of behavior and attitudes toward speeding in the United States. The present study differs from the earlier studies in that it developed and used a driver typology based on the pattern of responses across six speeding behavior questions. Cluster analysis identified three distinct groups of drivers with similar overall behavioral tendencies and, among those categorized, 30% are nonspeeders, 40% are sometime speeders, and 30% are speeders. Driver type is a powerful predictor of norms and attitudes toward speeding behavior, speeding countermeasures, experience with sanctions and crash experience. This report details the findings from the 2011 NSSAB, examining the data using the above mentioned driver typology as well as standard demographics. In the final chapter, results from the current study are compared to those of the 2002 NSSAB and the 1997 NSSAB. Using data from over the last 14 years allows us to identify trends in speeding and driving behavior, especially as new technologies such as cell phones become more pervasive in the driving community.
The data supports the outputs: 2011 National Survey of Speeding Attitudes and Behaviors  https://doi.org/10.21949/1525760; 2011 National Survey of Speeding Attitudes and Behaviors [Traffic Tech] https://doi.org/10.21949/1525896.
NTL staff has reviewed the data and feels that re-identification risk of study participants from this dataset is extremely low.
The .ZIP folder of datasets and supporting documentation contains files in the following formats: .CSV files which can be opened with any text editor; .TXT files which can be opened with any text editor; .PDF files that can be opened with any PDF reader; .DOCX files that can be opened in Microsoft Word and some web-based programs; .SAV files which can be opened with IBM SPSS statistical software; and, .JSON files which can be opened with text editors or metadata editing programs.



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TABLE OF CONTENTS
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A. General Information
B. Sharing/Access & Policies Information
C. Data and Related File Overview
D. Methodological Information
E. Data-Specific Information
F. Update Log





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A. GENERAL INFORMATION
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0. Title of Dataset: 
   2011 National Survey of Speeding Attitudes and Behaviors [Supporting Datasets]


1. Description of Dataset:
   This dataset supports the conclusions of the report "2011 National Survey of Speeding Attitudes and Behavior (NSSAB)." This is the third in a series of surveys on speeding that have provided data to help further the understanding of driving behavior and to contribute to the development of countermeasures and interventions to reduce speeding. Like the previous studies, this survey yields national estimates of behavior and attitudes toward speeding in the United States. The present study differs from the earlier studies in that it developed and used a driver typology based on the pattern of responses across six speeding behavior questions. Cluster analysis identified three distinct groups of drivers with similar overall behavioral tendencies and, among those categorized, 30% are nonspeeders, 40% are sometime speeders, and 30% are speeders. Driver type is a powerful predictor of norms and attitudes toward speeding behavior, speeding countermeasures, experience with sanctions and crash experience. This report details the findings from the 2011 NSSAB, examining the data using the above mentioned driver typology as well as standard demographics. In the final chapter, results from the current study are compared to those of the 2002 NSSAB and the 1997 NSSAB. Using data from over the last 14 years allows us to identify trends in speeding and driving behavior, especially as new technologies such as cell phones become more pervasive in the driving community.
	The data supports the outputs: 2011 National Survey of Speeding Attitudes and Behaviors  https://doi.org/10.21949/1525760; 2011 National Survey of Speeding Attitudes and Behaviors [Traffic Tech] https://doi.org/10.21949/1525896.
	NTL staff has reviewed the data and feels that re-identification risk of study participants from this dataset is extremely low.
	The .ZIP folder of datasets and supporting documentation contains files in the following formats: .CSV files which can be opened with any text editor; .TXT files which can be opened with any text editor; .PDF files that can be opened with any PDF reader; .DOCX files that can be opened in Microsoft Word and some web-based programs; .SAV files which can be opened with IBM SPSS statistical software; and, .JSON files which can be opened with text editors or metadata editing programs.



2.A Dataset homepage link:
       https://doi.org/10.21949/1529972  


3. Authorship Information:
   Principal Data Creator or Data Manager Contact Information
        Name: Randolph Atkins
	    ORCiD: not known
           Office of Behavioral Safety Research (BSR), National Highway Transportation Safety Administration (NHTSA), U.S. Department of Transportation
           Address: 1200 New Jersey Ave SE, Washington D.C. 20590
           Email: randolph.stkins@dot.gov

 
   Organizational Contact Information
        Name: National Transportation Library Data Curator
           Institution: National Transportation Library, Office of Information and Library Sciences, Bureau of Transportation Statistics, U.S. Department of Transportation
           Address: 1200 New Jersey Ave SE, Washington D.C. 20590
           Email: ntldatacurator@dot.gov
	   
	   

4. Date of data collection and update interval:
   Data was collected between 2011-03-31 and 2011-09-04. No updates 


5. Geographic location of data collection: 
   Random locations in the United States via telephone.


6. Information about funding sources that supported the collection of the data:
   DTNH22-08-F-00129




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B. SHARING/ACCESS & POLICIES INFORMATION 
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0. Recommended citation for the data: 
   U.S. Department of Transportation, National Highway Transportation Safety Administration (NHTSA),  Office of Behavioral Safety Research (BSR). (Last updated 2024-01.) 2011 National Survey of Speeding Attitudes and Behaviors [Supporting Datasets]. https://doi.org/10.21949/1529972


1. Licenses/restrictions placed on the data:
   These data are in the Public Domain.


2. Was data derived from another source?:
   No


3. This dataset and its documentation were created and shared to meet the requirements enumerated in the U.S. Department of Transportation's "Plan to Increase Public Access to the Results of Federally-Funded Scientific Research" Version 1.1 <<https://doi.org/10.21949/1524190>> and guidelines suggested by the DOT Public Access website <<https://doi.org/10.21949/1503647>>, in effect and current as of January 21, 2024.
 



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C. DATA & RELATED FILE OVERVIEW
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1. Filenames
Data Files List
   A.1. Filename: NHTSA_BSR_2011_NSSAB_DATA_with_text_values.csv     
        Short description: 6,144 data records, with 163 variables in header row. .CSV version, opens with any text editor.
	A.2. Filename: NHTSA_BSR_2011_NSSAB_DATA_with_text_values.xlsx     
        Short description: 6,144 data records, with 163 variables in header row. .XLSX version, opens with Mircosoft Excel or other spreadsheet program.		
	A.3. Filename: NHTSA_BSR_2011_NSSAB_DATA_Web_Post.sav     
        Short description: 6,144 data records, with 163 variables. .SAV version, opens with IBM SPSS statistical software.
	A.4  Filename: NHTSA_BSR_2011_NSSAB_DATA_Output3_race.spv
		Short description: This file opens a view in SPSS that shows tables summarizing the percentages of the race of respondants. See related file: NHTSA_BSR_2011_NSSAB_DATA_Codebook_D6_Recode.pdf
	A.5  Filename: NHTSA_BSR_2011_NSSAB_DATA_Unknown_values_for_variable_categories.spv
		Short description: This file opens a view in SPSS that shows imputed values for various variables. See related file: NHTSA_BSR_2011_NSSAB_DATA_Codebook_Unknown_values_for_variable_categories.pdf

 
README 
   B. Filename: _NHTSA_BSR_2011_NSSAB_README_20240121_1130.txt     
        Short description:        
        The README.txt file that includes human-readable information about the data, variable definitions, contact information, and other contextual information. The file you are reading now.      

   C. Filename: _NHTSA_BSR_2011_NSSAB_README_20240121_1130.pdf
        Short description: 
        A PDF version of the README.txt file that includes human-readable information about the data, variable definitions, contact information, and other contextual information.

METADATA        
   D. Filename: NHTSA_BSR_2011_NSSAB_METADATA_20240121_1130.json    
        Short description: 
        The machine-readable .json metadata file based on DCAT-US (Project Open Data) metadata schema v1.1.

DATA MANAGEMENT PLAN
   E. Filename: NHTSA_BSR_2011_NSSAB_DMP_20240121_1130.txt
        Short description: 
        The human-readable data management plan associated with this dataset.  
	
   F. Filename: NHTSA_BSR_2011_NSSAB_DMP_20240121_1130.pdf
        Short description: 
        A pdf version of the human-readable data management plan associated with this dataset.	

DATA DICTIONARY
   G. Filenames: NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.pdf;  NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.docx; NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.csv; NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.rtf      
        Short description: 
        Data creators did not create a proper Data Dictionary for this dataset. However, the various views of the "Database_Outline" document, which show the grouping of the questions, can provide the user with an good idea of the use of each of the 163 variables collected or generated for this dataset. NTL staff filled in the few missing variables to the beginning and the end of the table.

REPORTS AND OUTPUTS
   H. Filenames: 
	   NHTSA_BSR_2011_NSSAB_Report_811865.pdf;
	   NHTSA_BSR_2011_NSSAB_Report_TrafficTech_811866.pdf
	   
	   
QUESTIONNAIRE AND SUPPORTING DOCUMENTS
   I. Filenames:
       	NHTSA_BSR_2011_NSSAB_Questionnaire.txt;
		NHTSA_BSR_2011_NSSAB_Questionnaire.pdf;
		NHTSA_BSR_2011_NSSAB_Questionnaire.doc;
		NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.csv;
		NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.pdf;
		NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.doc;
		NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.rtf
	
	   
2. Are there multiple versions of the dataset? No



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D. METHODOLOGICAL INFORMATION
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1. Description of methods used for collection/generation of data: 
   For Methodological information, please read NHTSA_BSR_2011_NSSAB_Report_811865.pdf, "2011 National Survey of Speeding Attitudes and Behaviors," Appendix B. This file is also available in ROSA P at https://doi.org/10.21949/1525760  




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E. DATA-SPECIFIC INFORMATION  
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1. NHTSA_BSR_2011_NSSAB_DATA_with_text_values.csv (as well as .xlsx, and .sav formats).

A. Notes on table structure: see Data Dictionary file NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.pdf


B. Number of variables:
   163 variables


C. Number of cases/rows: 
   6,144 rows

   
D. Each row represents:
   1 telephone survey during the study period.
   

E. Data Dictionary/Variable List:  
    1. An incomplete Data Dictionary is in file: NHTSA_BSR_2011_NSSAB_DataDictionary_Database_Outline.pdf and related file formats.
	

F. Missing data codes:
        #NULL!        See Data Dictionary 
        Empty Cell 	  See Data Dictionary




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F. CHANGE LOG / UPDATE LOG
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This _NHTSA_BSR_2011_NSSAB_README_20240121_1130.txt file was created on 2024-01-20 by Leighton L Christiansen https://orcid.org/0000-0002-0543-4268, Data Curator, leighton.christiansen@dot.gov

[Note changes or update to the readme.txt file, e.g.:]

2024-01-21: Original file created







