Facts, Statistics, and Studies

This is a collection of factual and statistical information that may be useful for judges.

Gentles, Peggy. NON-FELONY DRIVING WHILE INTOXICATED CASE PROCESSING IN WRIGHT COUNTY MINNESOTA, Institute for Court Management, ICM Fellows Program, 2014-2015 Court Project Phase (May 2015).

Comprehensive List of NCSC Library Materials on Traffic Issues, NCSC, June, 2014.  This is a listing of all traffic related resources that are available in the NCSC library. Many of the resource are unique to this collection and may be the best available on a specific topic.

Results of the 2007 National Roadside Survey of Alcohol and Drug Use by Drivers, NHTSA, July 2009. This was NHTSA's first nationwide survey profiling both alcohol and drug use among drivers.

Highway Safety Laws By State - The Governors Highway Safety Association's digest of traffic laws for each state

Digest of Motor Laws - AAA's own compilation of U.S. traffic laws

Quick Facts 2012 - NHTSA, May 2014. This fact sheet gives an overview of traffic data from 2012 on topic  ranging from fatal crashes to occupant pedestrians to school buses, motorcycles, and more.

New Mexico’s Comprehensive Impaired-Driving Program: A Case Study, NHTSA, March 2014. In late 2004, the National Highway Traffic Safety Administration provided funds to the New Mexico Department of Transportation to demonstrate a process for implementing a comprehensive State impaired-driving system. NHTSA also contracted with the Pacific Institute for Research and Evaluation to measure the effect of that system on various factors including driving-while-impaired (DWI) crash, injury, and fatality rates; DWI arrest rates; DWI conviction rates; blood alcohol concentration (BAC) patterns; and public awareness.

Impaired Driving: Research & Activities & Policy Impact: Impaired Driving - The CDC's pages on impaired driving.

Cameron, Owen M., Reducing DUI-Related Collisions:  Evaluating the Effectiveness of Enhanced DUI Enforcement (2013).  This article looks for a correlation between increased DUI arrests and rates of DUI related crashes using data from 2000-2009 in California.

Traffic Safety Facts: Alcohol-Impaired Driving (2012 Data), NHTSA, December 2013. This fact sheet examines national data from alcohol-related traffic incidents from 2012.

Rural States Struggle to Reduce Road Deaths, Pew Charitable Trust, March 12, 2013. This article which contains a 50 state map describes the variations amongst the state’s with vehicular fatalities.

Challenges and Defenses II: Claims and Responses to Common Challenges and Defenses in Driving While Impaired Cases, NHTSA, March 2013. DUI cases have become some of the most complex in the criminal justice system. As a result, defense challenges are being raised more frequently and are more procedural and scientific in nature. These challenges range from the initial law enforcement stop of the vehicle to the testing procedures used to determine alcohol concentration in blood, breath, and urine samples to possible alternative explanations for those results. This monograph was developed to assist prosecutors and law enforcement in understanding the nature of these challenges.

The National Safety Council released its Revised Motor Vehicle Fatality Report for 2012. This report notes that motor vehicle fatalities are up 4% from the revised 2011 total and marking the first annual increase since 2004 to 2005.  The report also states, “The estimated cost of motor-vehicle deaths, injuries, and property damage in 2012 was $276.6 billion, a 5% increase from 2011. The costs include wage and productivity losses, medical expenses, administrative expenses, employer costs, and property damage.”

State of Drunk Driving Fatalities in America 2012, Foundation for Advancing Alcohol Responsibility. This report examines the data pertaining to alcohol-involved fatalities in the US in 2012.

Dr. Joe Gorton, Dr. Joe and Dr. Keith Crew, An Analysis of OWI Arrests and Convictions in Iowa, July, 2011, The primary goal of the project was to document the demographic profile of OWI offenders in Iowa. The study is based on both aggregate and case-level data of 118,675 OWI convictions from 2000 through 2009.

Motor Vehicle Traffic Crashes as a Leading Cause Of Death in the United States, 2008 and 2009, NHTSA, 2012. For the first time since 1981 (when data was first available), motor vehicle traffic crashes were not among the top 10 causes of death in the United States. Motor vehicle crashes were the 11th leading cause of death in 2009. In 2008, motor vehicle traffic crashes were the 9th leading cause of death overall.  Although, in some age ranges, Motor vehicle crashes were one of the top leading causes of death.  This report describes that data.

Digest of Impaired Driving and Selected Beverage Control Laws, Twenty-Fifth Edition, NHTSA, 2011. This digest reports the status of State laws that are concerned with impaired driving offenses and alcoholic beverage control. It is extensively footnoted and contains comprehensive information on critical impaired driving laws for all 50 States, the District of Columbia, and Puerto Rico.  Each State entry includes: Basis for a DWI Offense; Chemical Breath Tests for Alcohol Concentration; Adjudication of Driving While Intoxicated (DWI) charges; Sanctions; Administrative Licensing Actions; Ignition Interlock; Sobriety Checkpoints; DWI Offenses and Commercial Motor Vehicles; Other Criminal Actions Related to DWI; Minimum Age Alcohol Laws, Dram Shop Laws and Related Actions, and others.

Case Studies of Community-Based Self-Sufficient DWI Programs, NHTSA, (July 2011). This report is intended to provide guidance to communities in developing or adapting existing programs to function more self-sufficiently. The report features five case studies of community-based, self-sufficient DWI programs operating at the local level in various communities across the country.

Fatality Analysis Reporting System (FARS), NHTSA, FARS is a nationwide census providing NHTSA, Congress and the American public yearly data regarding fatal injuries suffered in motor vehicle traffic crashes.

Seventh Annual Statistical Report on DWI Court Dispositions In New Mexico, 2012. This report contains statistical information on DWI cases adjudicated from 1997 through 2011, in New Mexico magistrate courts, district courts, municipal courts, and the Bernalillo County Metropolitan Court.

Multiple Medications and Vehicle Crashes: Analysis of Databases, NHTSA, May 2008. The main objectives of this study were to determine the relative frequency of various combinations of medications used by those who have experienced a MVC and those who have not by analyzing proprietary and non-proprietary databases; and to conduct a case-control study of possible associations between the use of medications (and combinations thereof) and MVCs amongst older drivers.

Arizona Records Retention and Disposition Arizona's records retention rule requires limited jurisdiction courts to maintain records of DUIs for 7 years following the disposition or completion of sentence.

Projects and Publications Traffic Injury Research Foundation. TIRF's list of active publications.

The Road Safety Monitor TIRF. The index for TIRF's publication The Road Safety Monitor.