Research Studies & Reports

DMV’s Research & Development Branch has been conducting research and producing studies and reports since the 1950s. Research & Development reports help DMV to measure the impact of new laws on making drivers safer. We also identify areas where we can improve our processes, explore new approaches to solving existing problems, and branch out into new opportunities to serve you better. 

Request printed copies of studies and reports by mail at:

Department of Motor Vehicles
Research and Development Branch
2415 1st Ave. Mail Station: F-126
Sacramento, CA 95818
(916) 914-8125

Please include the report number, the number of copies requested, and your name, address, and phone number.

393 Results

Report ID Date Published Title Section Links
206 2004/ 01

2004 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J. Helander

In this thirteenth annual legislatively mandated report, 2001 and 2002 DUI data from diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data reference and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcoholinvolved accidents. In addition, this report provides 1-year proportions of DUI recidivism and accident rates for first and second DUI offenders arrested in each year over a time period of twelve years. Also, the long-term recidivism curves of the cumulative proportions of DUI reoffenses are shown for all DUI offenders arrested in 1994. Analyses were conducted on the effectiveness of alcohol education programs upon the 1-year postconviction records of those convicted of the reduced charge of alcohol-related reckless driving, and on the effectiveness of the 3-month versus 6-month alcohol education programs on the 1-year postconviction records of first offenders.

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198 2003/ 01

2003 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J. Helander

In this twelfth annual legislatively mandated report, 2000 and 2001 DUI data from diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data reference and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcoholinvolved accidents. In addition, this report provides an evaluation of the effectiveness of alternative court and administrative sanctions (including alcohol treatment programs and license actions) upon the 1-year postconviction records of first and second DUI offenders over a time period of eleven years. The postconviction driving records of second DUI offenders arrested in 1998 and 2000 were evaluated for 3- and 1-year periods, respectively. Additional analyses were conducted on the effectiveness of alcohol education programs upon the 1-year post conviction records of those convicted of the reduced charge of alcohol-related reckless driving, and on the effectiveness of the 3-month versus 6-month alcohol education programs on the 1-year post conviction records of first offenders.

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191 2002/ 01

2002 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J. Helander

In this eleventh annual legislatively mandated report, 1999 and 2000 DUI data from diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data reference and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcoholinvolved accidents. In addition, this report provides an evaluation of the effectiveness of alternative court and administrative sanctions (including alcohol treatment programs and license actions) upon the 1-year postconviction records of first and second DUI offenders over a time period of ten years. The postconviction driving records of second DUI offenders arrested in 1997 and 1999 were evaluated for 3- and 1-year periods, respectively. An additional analysis was conducted on the effectiveness of alcohol education programs upon the 1-year post conviction records of those convicted of the reduced charge of alcohol-related reckless driving.

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188 2001/ 01

2001 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J. Helander

In this tenth annual legislatively mandated report, 1998 and 1999 DUI data from diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data reference and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcohol-involved accidents. In addition, this report provides an evaluation of the effectiveness of alternative court and administrative sanctions (including alcohol treatment programs and license actions) upon the 1-year postconviction records of first and second DUI offenders over a time period of nine years. The postconviction driving records of second DUI offenders arrested in 1996 and 1998 were evaluated for three- and one-year periods, respectively.

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185 2000/ 01

2000 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J. Helander

In this ninth annual legislatively mandated report, 1997 and 1998 DUI data from diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data reference and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcohol-involved accidents. In addition, this report provides an evaluation of the effectiveness of alternative court and administrative sanctions (including alcohol treatment programs and license actions) upon the 1-year postconviction records of first and second DUI offenders over a time period of eight years. The postconviction driving records of second DUI offenders arrested in 1995 and 1997 were evaluated for three- and one-year periods, respectively.

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179 1999/ 01

1999 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J Helander

In this eighth annual legislatively mandated report, 1996 and 1997 DUI data from diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcoholinvolved accidents. In addition, this report provides an evaluation of the effectiveness of alternative court and administrative sanctions (including alcohol treatment programs and license actions) upon the 1-year postconviction records of first and second DUI offenders over a time period of seven years. The postconviction driving records of second DUI offenders arrested in 1994, and 1996 were evaluated three- and one-year periods, respectively.

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169 1997/ 01

1998 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J Helander

In this seventh annual legislatively mandated report, 1995 and 1996 DUI data from diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcohol-involved accidents. In addition, this report provides an evaluation of the effectiveness of alternative court and administrative sanctions (including alcohol treatment programs and license actions) upon the postconviction records of first and second DUI offenders. The postconviction driving records of DUI offenders arrested in 1989, 1993, and 1995 were evaluated for seven-, three-, and one-year periods, respectively.

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165 1997/ 01

1997 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J Helander

In this sixth annual legislatively mandated report, 1994 and 1995 DUI data from several diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcoholinvolved accidents. In addition, this report provides an evaluation of the effectiveness of alternative court and administrative sanctions (including alcohol treatment programs and license actions) upon the postconviction records of first and second DUI offenders. The postconviction driving records of DUI offenders arrested in 1989, 1992, and 1994 were evaluated for six-, three-, and one-year periods, respectively.

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159 1996/ 01

1996 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J Helander

In this fifth annual report, 1993 and 1994 DUI data from several diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcohol-involved accidents. In addition, this report provides an evaluation of the effectiveness of alternative court and administrative sanctions (including alcohol treatment programs and license actions) upon the postconviction records of first and second DUI offenders. The postconviction driving records of DUI offenders arrested in 1989, 1991, and 1993 were evaluated for five-, three-, and one-year periods, respectively.

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145 1995/ 01

1995 ANNUAL REPORT OF THE CALIFORNIA DUI MANAGEMENT INFORMATION SYSTEM

By: Helen N. Tashima and Clifford J Helander

In this fourth annual report, 1992 and 1993 DUI data from several diverse sources were compiled and cross-referenced for the purpose of developing a single comprehensive DUI data and monitoring system. This report presents crosstabulated information on DUI arrests, convictions, court sanctions, administrative actions and alcohol-involved accidents. In addition, this report provides an evaluation of the effectiveness of alternative court and administrative sanctions (including alcohol treatment programs and license actions) upon the postconviction records of first and second DUI offenders. The postconviction driving records of DUI offenders arrested in 1989, 1991, and 1992 were evaluated for four-, two-, and one-year periods, respectively.

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