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
59 1977/ 09

The Effectiveness of License Suspension or Revocation for Drivers Convicted of Multiple Driving-Under-The-Influence Offenses (An Interim Report for the Evaluation of Senate Bill (SB) 330-Gregorio)

By: Roger E. Hagen

To assess the efficacy of using mandated license actions for multiple DUI offenders as accident countermeasures.

III
69 1979/ 06

The Effects of “No Action” Negligent Operator Hearings as an Alternative to Hearings Resulting in Probation

By: Marilee E. Garretson & Raymond C. Peck

To evaluate the effectiveness of negligent operator hearings in which probation is replaced by the imposition of "no action."

III
9 1961/ 10

A Controlled Evaluation of Group Driver Improvement Meetings

By: Ronald S. Coppin

To describe and analyze the results of an experimental program of group driver improvement meetings.

III
90.1 1984/ 04

An Abstract of The Long-Term Traffic Safety Impact of Pilot Alcohol Abuse Treatment as an Alternative to License Suspensions (Volume 2 of “An Evaluation of the California Drunk Driving Countermeasure System”)

By: Daniel D. Sadler & M. W. Perrine

To evaluate the long-term traffic safety effects of participating in a Senate Bill (SB) 330 drunk driver program in lieu of receiving a mandatory license suspension or revocation.

III
91.1 1984/ 03

An Abstract of The Traffic Safety Impact of Driver Improvement Countermeasures Targeting 55-MPH Speed Limit Compliance

By: Daniel J. Kadell

The overall objectives of this study were twofold: (1) to evaluate a speed-oriented home instruction/point reduction incentive program (HI/PRI) and a speed education meeting (SEM) as alternatives to the group educati onal meeting (GEM) for ne gligent operators, and (2) to evaluate the effects of a modified speed compliance HI/PRI program on repeat speed offenders.

III
91 1984/ 03

The Traffic Safety Impact of Driver Improvement Countermeasures Targeting 55-MPH Speed Limit Compliance

By: Daniel J. Kadell

The overall objectives of this study were twofold: (1) to evaluate a speed-oriented home instruction/point reduction incentive program (HI/PRI) and a speed education meeting (SEM) as alternatives to the group educational meeting (GEM) for negligent operators, and (2) to evaluate the effects of a modified speed compliance HI/PRI program on repeat speed offenders.

III
96 1986/ 01

An Evaluation of the Process Efficiency and Traffic Safety Impact of the California Implied Consent Program (Volume 4 of “An Evaluation of the California Drunk Driving Countermeasure System”)

By: Daniel D. Sadler

To identify problems in the implied consent (IC) system and to evaluate its impact on traffic safety.

III
NRN020 1977/ 09

Driver License and Driver Improvement Program

By: Ronald S. Coppin

The report attempts to conceptualize driver licensing programs into a series of administrative techniques which, if applied in a systematic fashion, should enhance road safety. The basic concept of the report is a recommended shift from a system of selection/ enforcement to a system which is more diagnostic and/or educational in nature. This means a shift from doing things to drivers to a program which operates constructively for drivers.

III
NRN023 1981/ 10

Review of “An Appraisal of San Diego County SB 38 Participant DUI Recidivism and Traffic Accident Involvement”

By: Raymond C. Peck

To communicate to the drunk driving rehabilitation community some evaluation defects in the above study which limit the conclusions that can be reached, and to increase knowledge of evaluation research methodology.

III
NRN034 1992/ 11

Effectiveness of California Laws in Deterring Drinking and Driving

By: Clifford J. Helander

This paper, written for presentation at a DUI symposium sponsored by the Automobile Club of Southern California, provides a historical review and evaluation of the impact of California DUI legislation in deterring drinking and driving.

III