CODES Documents Available from NHTSA

The following CODES related documents can be downloaded in pdf format by clicking on the pdf icon. The Adobe Acrobat Reader is needed to view pdf documents. If it is not already installed on your computer, you can obtain it free of charge from Adobe. Click here to download the version you need. You can also request documents to be mailed to you.
 

National Center for Statistics & Analysis, National Highway Traffic Safety Administration. Problems, Solutions and Recommendations for Implementing CODES. DOT HS 809 200. Washington, DC: Department of Transportation, December 2000.

(Adobe PDF/377K) Compiled contributions from CODES states regarding problems, solutions and recommendations for implementing CODES.

National Center for Statistics & Analysis, National Highway Traffic Safety Administration. Geographic Information Systems Using CODES Linked Data. DOT HS 809 201. Washington, DC: Department of Transportation, March 2001.

(Adobe PDF/356K) Represents information about Geographic Information Systems (GIS) and CODES linked data. The purpose of this information is to encourage other CODES states to expand CODES to include GIS.

National Center for Statistics and Analysis, National Highway Traffic Safety Administration. Revised Catalog of Types of CODESApplications Implemented Using Linked State Data.  DOT HS 809 058.  Washington, DC:  Department of Transportation, June 2000.
 

(1,109k) The latest updated compendium of analyses and reports by CODES states and NCSA, using the linked data. It is arranged by type of analysis, and provides contacts for obtaining the reports.
National Highway Traffic Safety Administration. Report to Congress on Benefits of Safety Belts and Motorcycle Helmets, Based on Data from the Crash Outcome Data Evaluation System (CODES).  DOT HS 808 347.  Washington, DC:  Department of Transportation, February 1996.
(153k) Provides person-specific, population-based outcome information used to evaluate the effectiveness of safety belts and motorcycle helmets in terms of mortality, morbidity, severity, and cost.
National Highway Traffic Safety Administration. Why Data Linkage?  DOT HS 808 461.  Washington, DC:  Department of Transportation, October 1996.
 
(274k)  "Why Data Linkage" provides a complete but brief summary of what data linkage is, the various types of applications for linked data that have been identified and successfully implemented by the CODES states, and how interested states can obtain information about implementing CODES.
Johnson, S. W. and Walker, J. NHTSA Technical Report: The Crash Outcome Evaluation System (CODES).  DOT HS 808 338.  Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, January 1996.
(813k)  Includes technical information about the probabilistic linkage and state specific results to serve as a background reference for the Report to Congress on Benefits of Safety Belts and Motorcycle Helmets.
Johnson, S. W., Walker, J., Utter, D.  Research Note:  Crash Outcome Data Evaluation System (CODES) Project Safety Belts and Helmet Analysis.  Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, February 1996.
(25k)  Summarizes technical information about the data collection methodology, outcome measures, contributing factors considered, and how the state specific results were combined statistically to determine the benefits of safety belts and motorcycle helmets for the Report to Congress.
Johnson, S. W.  So You Want To Link Your Data.  DOT HS 808 426. Washington, DC: Department of Transportation, National Highway Traffic Safety Administration, July 1996.
(813k)  Provides step by step instructions on how to identify the data resources, edit the state data, locate the cases related to motor vehicle crashes, perform the linkage, and validate the results.
Walker, J, Ph.D. Methodology Application Document:  Logistic Regression Using the CODES Data.  DOT HS 808 460.  Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, September 1996.
(794k)  Provides background in Chi-Square Analysis and simple linear regression, introduces odds, odds ratios, logits, probabilities, relative risk, and effectiveness and gives examples of logistic regression. CODES data are used for the examples.  Also available in WordPerfect 6.1 format, with hyperlinks (1.1 MB) .
 


DOCUMENTS AVAILABLE BY MAIL FROM NHTSA

 

Moore, M. Comparison of Young and Adult Driver Crashes in Alaska Using Linked Traffic Crash and Hospital Data. DOT HS 808. Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, January 20, 1998.
 

Karlson, T., Bigelow, W. Beutel, P. Serious Lower Extremity Injuries from Motor Vehicle Crashes, Wisconsin 1991-1994. DOT HS 808 791. Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, September 1998.
 

Castle, S., Woods, B. Using Linked Data To Evaluate Traumatic Brain Injuries in New Mexico. DOT HS 808 798. Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, October 1998.
 

Allen, M., Weiss, H. Using Linked Data To Evaluate Hospital charges for Motor Vehicle Crash Victims in Pennsylvania. DOT HS 808 799.  Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, October 1998.
 

Allen, M., Weiss, H. Using Linked Data To Evaluate Collisions with Fixed Objects in Pennsylvania. DOT HS 808 800.  Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, October 1998.
 

Finison, K., DuBrow, R. Analysis of 1996 Maine Crashes Involving Young Adults. DOT HS 808 887.  Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, April 1999.
 

Finison, K., DuBrow, R. Analysis of Seat Belt Use and Outcomes in 1996 Maine Crashes. DOT HS 808 888.  Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, April 1999.
 

Finison, K., DuBrow, R. Analysis of 1996 Maine Crashes Involving Vehicles that Ran Off the Road. DOT HS 808 889.  Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, April 1999.
 

Zuckier, G., Jacobs, L., Thibeault, L. Using Linked Data To Evaluate Motor Vehicle Crashes Involving Elderly Drivers in Connecticut. DOT HS 808 971.  Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, September 1999.
 

Zuckier, G., Jacobs, L., Thibeault, L. Using Linked Data To Evaluate Medical and Financial Outcomes of Motor Vehicle Crashes in Connecticut. DOT HS 808 972.  Washington, DC: Department of Transportation, National Highway Traffic Safety Administration, September 1999.
 

Zuckier, G., Jacobs, L., Thibeault, L. Using Linked Data To Evaluate Severity and Outcome of Injury by Type of Object Struck (First Object Struck Only) for Motor Vehicle Crashes in Connecticut. DOT HS 808 973. Washington, DC:  Department of Transportation, National Highway Traffic Safety Administration, September 1999.
 
 

Go to This Page to Order the Above Documents Directly From NHTSA


To obtain more information about CODES, contact Dennis Utter at:
 
NHTSA
400 7th Street SW
NRD-31, Room 6125
Washington, DC 20590
TEL (202) 366-5351
FAX (202) 366-3189
 
 

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