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<codeBook version="1.2.2" ID="ICPSR04078">
	<docDscr>
		<citation>
			<titlStmt>
				<titl>Metadata record for North Carolina Highway Traffic Study, 2000-2001</titl>
			</titlStmt>
			<prodStmt>
				<producer abbr="ICPSR">
					<ExtLink URI="http://www.icpsr.umich.edu/images/icpsr-logo.gif" title="ICPSR Logo" role="image" /> 
					Inter-university Consortium for Political and Social Research
					<ExtLink URI="http://www.icpsr.umich.edu/ICPSR/" title="URL of ICPSR Web Site" />
				</producer>
				<copyright>
					ICPSR metadata records are licensed under a Creative Commons Attribution-Noncommercial 3.0 United States License <ExtLink URI="http://creativecommons.org/licenses/by-nc/3.0/us/" title="Link to full text of license" />.
				</copyright>
			</prodStmt>
			<verStmt>
				
				<version date="2013-05-24">2013-05-24</version>
			</verStmt>
			
			
				<holdings URI="http://www.icpsr.umich.edu/icpsrweb/ICPSR/ddi2/studies/4078"></holdings>
			
		</citation>
	</docDscr>
	<stdyDscr>
       <citation>
           <titlStmt>
             <titl>North Carolina Highway Traffic Study, 2000-2001</titl>
 				
             <IDNo agency="ICPSR">4078</IDNo>
             <IDNo agency="CrossRef">10.3886/ICPSR04078.v1</IDNo>
           </titlStmt>
           <rspStmt>
    	
			<AuthEnty affiliation="North Carolina State University">Zingraff, Matthew</AuthEnty>
    	
			<AuthEnty affiliation="North Carolina State University">Smith, William</AuthEnty>
    	
			<AuthEnty affiliation="North Carolina State University">Tomaskovic-Devey, Donald</AuthEnty>
    	
           </rspStmt>
           <prodStmt>
				
    				
    					<fundAg>United States Department of Justice. Office of Justice Programs. National Institute of Justice</fundAg>
    				
				

    	
    		<grantNo agency="United States Department of Justice. Office of Justice Programs. National Institute of Justice">1999-MU-CX-0022</grantNo>
    	

           </prodStmt>
           <distStmt>
             <distrbtr abbr="ICPSR" affiliation="Institute for Social Research, University of Michigan" URI="http://www.icpsr.umich.edu/ICPSR/">
               <ExtLink URI="http://www.icpsr.umich.edu/images/icpsr-logo.gif" title="Logo" />
               Inter-university Consortium for Political and Social Research
               <ExtLink URI="http://www.icpsr.umich.edu/ICPSR/" title="URL" />
             </distrbtr>
             <distDate date="2005-04-07">2005-04-07</distDate>
           </distStmt>


    	
           <verStmt>
           
             <version date="2006-03-30">2006-03-30</version> 
             
             <notes>2006-03-30 File UG4078.ALL.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads.</notes>
           </verStmt>
    	
           <verStmt>
           
             <version date="2006-03-30">2006-03-30</version> 
             
             <notes>2006-03-30 File CQ4078.ALL.PDF was removed from any previous datasets and flagged as a study-level file, so that it will accompany all downloads.</notes>
           </verStmt>
    	


           <biblCit>Zingraff, Matthew, William Smith, and Donald Tomaskovic-Devey. NORTH CAROLINA HIGHWAY TRAFFIC STUDY, 2000-2001. ICPSR04078-v1. Raleigh, NC: North Carolina University [producer], 2003. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2005-04-07. doi:10.3886/ICPSR04078.v1</biblCit>

				<holdings URI="http://dx.doi.org/10.3886/ICPSR04078.v1"></holdings>


        </citation>
      <stdyInfo>
           <subject>
		
      		<keyword vocab="thesaurus">driving habits</keyword>
      	
      		<keyword vocab="thesaurus">highways</keyword>
      	
      		<keyword vocab="thesaurus">police</keyword>
      	
      		<keyword vocab="thesaurus">racial discrimination</keyword>
      	
      		<keyword vocab="thesaurus">traffic accidents</keyword>
      	
      		<keyword vocab="thesaurus">traffic offenses</keyword>
      	
		
      		<topcClas source="archive" vocab="RCMD subject classifications">RCMD.II</topcClas>
      	
      		<topcClas source="archive" vocab="ICPSR subject classifications">ICPSR.XVII.E</topcClas>
      	
      		<topcClas source="archive" vocab="NACJD subject classifications">NACJD.IX</topcClas>
      	
           </subject>
          <abstract>This study investigated whether the North Carolina State
 Highway Patrol (NCSHP) practiced racial profiling. The NCSHP provided
 data on all vehicular stops (Parts 1 and 2), written warnings (Part
 3), and citations (Part 4) its officers issued in 2000. This included
 data on what the stops or tickets were for, the race, sex, and age of
 the driver, and the make, model, and year of the car being driven.
 Data on accidents in 2000 (Part 5), also obtained from the NCSHP, were
 used to examine whether there were racial disparities in unsafe
 driving practices. These data included information about what caused
 the accident and the race, sex, and age of the driver. The NCSHP also
 supplied data on all officers who worked for the NCSHP in 2000 (Part
 6), including their race, age, and rank. The data in Part 6 can be
 linked to the data in Parts 3 and 4. In addition, two surveys of North
 Carolina drivers were conducted to gather information on reported
 typical driving behaviors that may influence the probability of being
 stopped, and to gather information about stops conducted by law
 enforcement agencies across the state. One was conducted using a
 sample of North Carolina drivers who had recently renewed their
 licenses (Part 7), and the other used a sample of North Carolina
 drivers who were ticketed for speeding between June 1, 1999, and June
1, 2000 (Part 8).</abstract>
 			
           <abstract>This study investigated whether the North
 Carolina State Highway Patrol (NCSHP) practiced racial profiling. The
 research aimed to answer four basic questions: (1) Do NCSHP troopers
 stop minorities, particularly African Americans, on the road at higher
 rates that they stop Whites? (2) Once stopped, do African Americans
 and Whites experience different rates for citations, written warnings,
 and searches? (3) What factors might account for highway stops? and
 (4) How do African Americans and other ethnic minorities experience
 and respond to traffic stops? and (5) Is there any racial disparity in
violations of traffic laws?</abstract>
           
 			
           <abstract>The project began in 1999 when the North Carolina
 State Legislature mandated that the NCSHP assemble data on the racial
 distribution of all vehicular stops initiated by officers. The NCSHP
 provided official data for the year 2000 on vehicular stops, written
 warnings, citations, and accidents. Part 1 consists of data on all
 stops between January and July 2000. Part 2 contains data on all stops
 between August and December 2000. Part 3 contains data on all written
 warnings issued between January and December 2000. Part 4 contains
 data on all citations issued between January and August 2000. Part 5
 contains data from NCSHP accident files for all accidents that
 occurred in 2000. Part 6 contains all roster records of active and
 inactive officers of NCSHP in 2000. Part 7 contains data from a survey
 of 2,920 North Carolina licensed drivers, including 1,445 African
 Americans and 1,475 Whites. The survey was administered by the Public
 Opinion Laboratory at Northern Illinois University. The survey
 collected information on reported typical driving behaviors that may
 influence the probability of being stopped. In addition, the survey
 asked respondents whether they were stopped in the last year, why they
 were stopped, the outcome of the stop, and how they were treated. The
 survey was conducted by telephone between June 22, 2000, and March 20,
 2001. Part 8 contains data from a survey of 605 North Carolina
 residents who were ticketed for speeding between June 1, 1999, and
 June 1, 2000. Interviews were conducted by the Public Opinion
 Laboratory at Northern Illinois University over telephone between July
 2000 and March 2001. One week before the initial telephone contact
 attempt, letters were sent to each of the people in the sample. The
 letter explained that the survey focused on the driving experiences of
 people in North Carolina and their observations of other drivers on
North Carolina roads.</abstract>
           
 			
          <abstract>Variables in Part 1 include stop date, time,
 purpose, county, interstate number or road name where stop occurred,
 mile post where stop occurred, state where vehicle was registered,
 vehicle year, make, and model, driver age, sex, and gender, action
 taken by the officer, whether contraband was found if a search was
 performed, and the age, sex, and race of up to four passengers.
 Variables in Part 2 include stop date, time, officer action, and the
 city where the stop occurred. Variables in Part 3 include date of the
 violation, highway type, county, charge, and the offender's race and
 sex. Variables in Part 4 include county of violation, status of
 citation, type of accident, type of highway, specific highway where
 the offense occurred, date and time of the offense, the first two
 offense codes on the citation, charged speed, speed limit of zone,
 race and sex of the offender, state of the offender's driver's
 license, vehicle type, date scheduled for court, and the county where
 the case was heard. Variables in Part 5 include whether the record
 applies to a driver, occupant, or victim, date, time, and day of the
 week of the accident, county, specific highway accident occurred on,
 number of vehicles and people involved, number killed and injured,
 predominant development type of area, road features, type of road,
 crash type, contributing circumstances, vehicle maneuver that led to
 accident, object struck, type of vehicle, vehicle defects, speed
 limit, driver's race, sex, and age, whether driver intoxication was
 suspected, and occupants' race, sex, and age. Variables in Part 6
 include officer's rank, race, age, county, whether officer was active,
 and what training the officer had completed. Variables in Part 7
 include driver's birth year, race, and sex, number miles driven in a
 typical week, miles driven last year, how often the respondent drove
 on highways, questions about common driving habits, number of times
 police stopped to help respondent in the last year, times pulled over
 by police in the last year, make, model, and year of the car
 respondent drove most often, answers to questions about the last three
 times the respondent was pulled over in the last year, including car
 being driven, when stop occurred, type of road, type of officer,
 reason for stop, whether a ticket was received, and behavior of
 officer, number of times stopped in lifetime, experience of
 respondent's friends and family with being pulled over by the police,
 what types of people the respondent thought were most likely to get
 pulled over, respondent's confidence in the police, respondent's
 education, and whether respondent owned or rented. Variables in Part 8
 include driver's birth year, sex, and race, number miles driven in a
 typical week, miles driven last year, how often the respondent drove
 on highways, whether respondent practiced a set of common driving
 habits, what types of people the respondent thought were most likely
 to get pulled over, number of times pulled over in last year, number
 of times pulled over in the last year for speeding, answers to
 questions about the last three times the respondent was pulled over
 for speeding in the last year, including car being driven, when the
 stop occurred, type of officer, speed officer said respondent was
 going, speed limit, and whether respondent was ticketed, respondent's
education, and whether respondent owned or rented.</abstract>
          
           <sumDscr>
           
		
		
				
      		<timePrd event="start" date="2000" cycle="P1">2000</timePrd>
      		<timePrd event="end" date="2001" cycle="P1">2001</timePrd>
			
			
      		
      		
      	
		
 		
				
      		<collDate event="start" date="2000" cycle="P1">2000</collDate>
      		<collDate event="end" date="2001" cycle="P1">2001</collDate>
			
			
      		
      	
    	
    		<geogCover>North Carolina</geogCover>
    	
    		<geogCover>United States</geogCover>
    	
    	
    		<geogUnit>county</geogUnit>
    	
    	
    		<anlyUnit>Parts 1 and 2: vehicular stops, Part 3: written
 warnings, Part 4: citations, Part 5: accidents, Parts 6-8:
individuals.</anlyUnit>
    	
	    	
	    		<universe>Part 1: All vehicular stops initiated by the NCSHP from
 January through July 2000. Part 2: All vehicular stops initiated by
 the NCSHP from August through December 2000. Part 3: All written
 warnings issued by the NCSHP in 2000. Part 4: All citations issued by
 the NCSHP in 2000. Part 5: All accidents for which the NCSHP filed a
 report in 2000. Part 6: Officers in the NCSHP in 2000. Part 7:
 Licensed drivers in North Carolina. Part 8: North Carolina drivers who
were ticketed for speeding between June 1, 1999, and June 1, 2000.</universe>
	    	
	    	
	    		<dataKind>Parts 1-6: administrative records data, Parts 7 and 8:
survey data</dataKind>
	    	
           </sumDscr>
       </stdyInfo>
       <method>
           <dataColl>

             <sampProc>Parts 1-6: Not applicable. Part 7: The survey sample was
 stratified by race. The sampling frame included White and African
 American drivers who had applied for or renewed their licenses in the
 previous six months. Part 8: The sample was drawn from a list of names
 provided by the North Carolina Administrative Office of the Courts. It
 was weighted in order to have approximately one-half African American
respondents and one-half White respondents.</sampProc>
            



             <sources>
             
    		<dataSrc>Data in Parts 1 through 6 were obtained from NCSHP
 records. Data in Parts 7 and 8 were obtained through surveys of North
Carolina drivers.</dataSrc>
    	
             </sources>
             
    	

           </dataColl>


          <anlyInfo>

               <respRate>
               
    		Parts 1-6: not applicable, Part 7: 59.1 percent,
Part 8: 69.5 percent.
    	
    	</respRate>
    	

               <dataAppr>Several Likert-type scales were used in Parts 7 and 8.</dataAppr>
              
          </anlyInfo>
       </method>
       <dataAccs>
           <setAvail media="online">
			
			
             <accsPlac URI="http://dx.doi.org/10.3886/ICPSR04078.v1">Ann Arbor, Mi.: Inter-university Consortium for Political and Social Research</accsPlac>
			
            </setAvail>
           <useStmt>
                <specPerm>Additional special permissions, where applicable, are described in the restrictions
                field.</specPerm>
                
                <restrctn>To protect respondent privacy, certain identifying
 information is restricted from general dissemination. For this
 collection Parts 6, 7, and 8 are restricted. Users interested in
 obtaining these data must complete a Data Transfer Agreement Form and
 specify the reasons for the request. The Data Transfer Agreement Form
 is available as a Portable Document Format (PDF) file from the
 <a href="http://www.icpsr.umich.edu/NACJD/Private/private.pdf">
 NACJD Web site</a>. A copy of the Data Transfer Agreement Form can
 also be requested by calling 800-999-0960. Completed forms should be
 returned to Director, National Archive of Criminal Justice Data,
 Inter-university Consortium for Political and Social Research,
 Institute for Social Research, P.O. Box 1248, University of Michigan,
Ann Arbor, MI 48106-1248, or by fax: 734-647-8200.</restrctn>
                
 <conditions>
 	





<p>Please read the terms of use below. If you agree to them, click on the "I Agree" button to proceed. If you do not agree, you can click on the "I Do Not Agree" button to return to the home page.</p> <p>ICPSR adheres to the principles of the Data Seal of Approval <ExtLink URI="http://www.datasealofapproval.org/"/>, which, in part, require the data consumer to comply with access regulations imposed both by law and by the data repository, and to conform to codes of conduct that are generally accepted in higher education and scientific research for the exchange of knowledge and information. </p> <p>These data are distributed under the following terms of use, which are governed by ICPSR. By continuing past this point to the data retrieval process, you signify your agreement to comply with the requirements stated below:</p> <head n="2">Privacy of RESEARCH SUBJECTS</head> <p>Any intentional identification of a RESEARCH SUBJECT (whether an individual or an organization) or unauthorized disclosure of his or her confidential information violates the PROMISE OF CONFIDENTIALITY given to the providers of the information. Therefore, users of data agree:</p> <list type="bulleted"> <itm><p>To use these datasets solely for research or statistical purposes and not for investigation of specific RESEARCH SUBJECTS, except when identification is authorized in writing by ICPSR (netmail@icpsr.umich.edu <ExtLink URI="mailto:netmail@icpsr.umich.edu"/> )</p></itm> <itm><p>To make no use of the identity of any RESEARCH SUBJECT discovered inadvertently, and to advise ICPSR of any such discovery (netmail@icpsr.umich.edu <ExtLink URI="mailto:netmail@icpsr.umich.edu"/> )</p></itm> </list> <head n="2">Redistribution of Data</head> <p>You agree not to redistribute data or other materials without the written agreement of ICPSR, unless: </p> <list type="ordered"> <itm><p>You serve as the OFFICIAL or DESIGNATED REPRESENTATIVE at an ICPSR MEMBER INSTITUTION and are assisting AUTHORIZED USERS with obtaining data, or</p></itm> <itm><p>You are collaborating with other AUTHORIZED USERS to analyze the data for research or instructional purposes.</p></itm> </list> <p>When sharing data or other materials in these approved ways, you must include all accompanying files with the data, including terms of use. More information on  permission to redistribute data <ExtLink URI="http://www.icpsr.umich.edu/icpsrweb/content/datamanagement/policies/redistribute.html"/> can be found on the ICPSR Web site.</p> <head n="2">Citing Data</head> <p>You agree to reference the recommended bibliographic citation in any publication that employs resources provided by ICPSR. Authors of publications based on ICPSR data are required to send citations of their published works to ICPSR for inclusion in a database of related publications (bibliography@icpsr.umich.edu <ExtLink URI="mailto:bibliography@icpsr.umich.edu"/>) .</p> <head n="2">Disclaimer</head> <p>You acknowledge that the original collector of the data, ICPSR, and the relevant funding agency bear no responsibility for use of the data or for interpretations or inferences based upon such uses.</p> <head n="2">Violations</head> <p>If ICPSR determines that the terms of this agreement have been violated, ICPSR will act according to our policy on terms of use violations <ExtLink URI="http://www.icpsr.umich.edu/ICPSR/support/faqs/2008/10/what-are-consequences-of-violating"/>. Sanctions can include:</p> <list type="bulleted"> <itm><p>ICPSR may revoke the existing agreement, demand the return of the data in question, and deny all future access to ICPSR data.</p></itm> <itm><p>The violation may be reported to the Research Integrity Officer, Institutional Review Board, or Human Subjects Review Committee of the user's institution. A range of sanctions are available to institutions including revocation of tenure and termination.</p></itm> <itm><p>If the confidentiality of human subjects has been violated, the case may be reported to the Federal Office for Human Research Protections. This may result in an investigation of the user's institution, which can result in institution-wide sanctions including the suspension of all research grants. </p></itm> <itm><p>A court may award the payment of damages to any individual(s)/organization(s) harmed by the breach of the agreement.</p></itm> </list> <head n="2">Definitions</head> <list type="bulleted"><itm><hi>authorized user</hi> - A faculty member, staff member, or student at a member institution</itm><itm><hi>ICPSR</hi> - Inter-university Consortium for Political and Social Research</itm><itm><hi>member institution</hi> - An institutional member of ICPSR</itm><itm><hi>Official/Designated Representative</hi> - An individual appointed to represent a university's interests in ICPSR. This individual is also charged with providing user support to campus users. </itm><itm><hi>promise of confidentiality</hi> - A promise to a respondent or research participant that the information the respondent provides will not be disseminated without the permission of the respondent; that the fact that the respondent participated in the study will not be disclosed; and that disseminated information will include no linkages to the identity of the respondent. Such a promise encompasses traditional notions of both confidentiality and anonymity. Names and other identifying information regarding respondents, proxies, or other persons on whom the respondent or proxy provides information, are presumed to be confidential.</itm><itm><hi>research subject</hi> - A person or organization observed for purposes of research. Also called a respondent. A respondent is generally a survey respondent or informant, experimental or observational subject, focus group participant, or any other person providing information to a study or on whose behalf a proxy provides information. </itm></list><p>In addition, the National Archive of Criminal Justice Data stipulates the following conditions:</p> <p>Federal law and regulations require that research data collected by the U.S. Department of Justice or by its grantees and contractors may only be used for research or statistical purposes. The applicable laws and regulations may be found in the United States Code, 42 USC Section 3789g(a), the Code of Federal Regulations, 28 CFR 22, and 62 F.R. 35044 (June 27, 1997) (The Federal Confidentiality Order). Accordingly, any intentional identification or disclosure of a person or establishment may violate federal law as well as the assurances of confidentiality given to the providers of the information. Therefore, users of data collected by or with the support from the U.S. Department of Justice and distributed by NACJD or other ICPSR archives must agree to abide by these regulations and understand that ICPSR may report any potential violation to the U.S. Department of Justice.</p>




 
 
 			
                
					<p>AVAILABLE.  This study is freely available to the general public.</p>
                
                  
                
                
                </conditions>
                <disclaimer>The original collector of the data, ICPSR, and the relevant funding agency bear no 
                responsibility for use of the data or for interpretations or inferences based upon such uses.
                </disclaimer>
           </useStmt>
       </dataAccs>
			
     </stdyDscr>
		
    	 	
    			<fileDscr ID="F1">
          			<fileTxt ID="Part1">
               			<fileName>Stop Data for January-July 2000</fileName>
           			</fileTxt>
     			</fileDscr>
 			
    			<fileDscr ID="F2">
          			<fileTxt ID="Part2">
               			<fileName>Stop Data for August-December 2000</fileName>
           			</fileTxt>
     			</fileDscr>
 			
    			<fileDscr ID="F3">
          			<fileTxt ID="Part3">
               			<fileName>Warnings Data, 2000</fileName>
           			</fileTxt>
     			</fileDscr>
 			
    			<fileDscr ID="F4">
          			<fileTxt ID="Part4">
               			<fileName>Citations Data for January-August 2000</fileName>
           			</fileTxt>
     			</fileDscr>
 			
    			<fileDscr ID="F5">
          			<fileTxt ID="Part5">
               			<fileName>Accidents Data, 2000</fileName>
           			</fileTxt>
     			</fileDscr>
 			
    			<fileDscr ID="F6">
          			<fileTxt ID="Part6">
               			<fileName>Public Roster of NCSHP Officers, 2000</fileName>
           			</fileTxt>
     			</fileDscr>
 			
    			<fileDscr ID="F7">
          			<fileTxt ID="Part7">
               			<fileName>Driver Survey Data, 2000-2001</fileName>
           			</fileTxt>
     			</fileDscr>
 			
    			<fileDscr ID="F8">
          			<fileTxt ID="Part8">
               			<fileName>Reverse Record Check Survey Data, 2000-2001</fileName>
           			</fileTxt>
     			</fileDscr>
 			
 		
 
 
</codeBook>
