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.
Studies & Reports Sections
Studies and reports are assigned to a Section that best describes the type of report. Click on a section title below to see a short description.
I. Driver Education & Training Studies
II. Driver Licensing Screening Studies
III. Studies on Improvement and Control of Deviant Drivers
IV. Basic Research & Methodological Studies: Driver Performance, Accident Etiology, Prediction Models, and Actuarial Applications
V. Driver Licensing / Control Systems & Safety Management Studies
VI. Studies on Special Driver Populations
VII. Miscellaneous Studies & Reports
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.
| Report ID | Date Published | Title | Section | Links |
|---|---|---|---|---|
| 45.1 | 1974/ 01 |
An Abstract of An Evaluation of Some Additional Factors Influencing the Effectiveness of Warning LettersTo determine the effectiveness of two types of warning letters and an informational pamphlet in reducing the subsequent collision and conviction records of pre-negligent drivers. An additional study objective was to determine the effectiveness of a fo llow-up reinforcement letter se nt to collision- and conviction-free drivers. These hypotheses were suggested by an earlier warning letter study (McBride & Peck, Report #30). This study was designed to attempt replication of the previous results. |
III | |
| 59.1 | 1977/ 09 |
Executive Summary of 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)To assess the efficacy of using mandated license actions for multiple DUI offenders as accident countermeasures. |
III | |
| 71 | 1979/ 09 |
The Effectiveness of Accredited Traffic Violator Schools in Reducing Accidents and ViolationsTo evaluate the effects of accredited traffic violator schools (TVS) on traffic safety |
III | |
| 83.1 | 1982/ 09 |
An Abstract of An Evaluation of the Alcohol Reexamination Program for Drivers with Two Major Traffic ConvictionsTo evaluate the traffic safety impact of a reexamination designed to detect and treat drunk driving among drivers with two "major violations" who have escaped license sanctions and other countermeasures. Major violations comprise the more serious traffic violations including reckless driving, hit-and-run, and driving under the influence of alcohol or drugs (DUI). |
III | |
| 83 | 1982/ 09 |
An Evaluation of the Alcohol Reexamination Program for Drivers with Two Major Traffic ConvictionsTo evaluate the traffic safety impact of a reexamination designed to detect and treat drunk driving among drivers with two "major violations" who have escaped license sanctions and other countermeasures. Major violations comprise the more serious traffic violations including reckless driving, hit-and-run, and driving under the influence of alcohol or drugs (DUI). |
III | |
| NRN018 | 1973/ 11 |
Modifying Negligent Driving Behavior: Evaluation of Selected Driver Improvement Techniques, A Second Year Follow-upTo determine long-term effects of previously investigated treatments and provide decision information requested by the Legislative Analyst's Office. |
III | |
| NRN019 | 1977/ 02 |
A Study on the Feasibility of Placing Selected Negligent Operators on Probation by MailTo estimate the potential cost savings if negligent operators had the option of waiving the hearing process and accepting probationary status by mail. |
III | |
| NRN032 | 1986/ 12 |
Pilot Test of Four Written Driver License Knowledge TestsTo provide technical assistance to the Division of Headquarters Operations in pilot testing four of the Department's written driver license examinations and to provide test and item statistics. |
III | |
| NRN038 | 1995/ 02 |
Driver License Strategies for Controlling the Persistent DUI OffenderTo develop improved methods of identifying and controlling "hard core" Dill offenders through driver licensing. |
III | |
| 116 | 1988/ 12 |
An Evaluation of the Traffic Safety Impact of Provisional LicensingTo evaluate the traffic safety impact of California's Provisional Driver License Program. The primary goal of the program is to reduce the rate of traffic accidents and traffic violations involving 15- through 17-year-olds in California. |
II |