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
NRN043 1969/ 01

The Relationship Between Field Dependence and Motor Vehicle Accident Involvement

By: Richard M. Harano

To determine if any relationship exists between motor vehicle accidents and a perceptual response style referred to as field dependence (measured on response to figure / ground stimuli).

IV
30 1969/ 08

Modifying Negligent Driving Behavior Through Warning Letters

By: Robin S. McBride & Raymond C. Peck

To investigate the relative impact of various types of warning letters on the subsequent driving record of negligent drivers. Levels of threat and intimacy were manipulated.

III
30.1 1969/ 08

An Abstract of Modifying Negligent Driving Behavior Through Warning Letters

By: Robin S. McBride & Raymond C. Peck

To investigate the relative impact of various types of warning letters on the subsequent driving record of negligent drivers. Levels of threat and intimacy were manipulated.

III
NRN066 1969/ 12

Conviction Rate for a Sample of Citations Issued by the California Highway Patrol

By: California Department of Motor Vehicles

To gain information on the composition and disposition of citations issued by the California Highway Patrol for violations of California's road laws.

V
NRN044 1970/ 01

The Relationship of Perceptual Style of Drivers to Accident/Violation Experience

By: Patricia Isham

To explore the ability of the Stimulus Accretion Impending Hazard (SAIH) test to measure drivers' propensity for accident or violation involvement.

IV
31 1970/ 03

Projected Motor Vehicle Registration and Drivers Licenses Outstanding, 1970-85

By: Raymond C. Peck, William C. Marsh, Robin S. McBride, David M. Harrington, Richard M. Harano, Fredrick M. Wademan, & Ronald R. Payne

To prepare a set of estimated vehicle registrations to 1985, by county, for each of the four classes of vehicles --passenger vehicles, commercial vehicles, motorcycles, and trailers.

VII
34 1970/ 06

Traffic Violations by Type, Age, Sex, and Marital Status

By: David M. Harrington & Robin S. McBride

To examine how the distribution of violation types varies with such basic demographic variables as age, sex, and marital status.

IV
34.1 1970/ 06

An Abstract of Traffic Violations by Type, Age, Sex, and Marital Status

By: David M. Harrington & Robin S. McBride

To examine how the distribution of violation types varies with such basic demographic variables as age, sex, and marital status.

IV
33 1970/ 07

Prediction of Driving Behavior Following a Group Driver Improvement Session

By: Robin S. McBride

To determine the extent to which driving record subsequent to a driver improvement meeting could be predicted from a personality test and biographical questionnaire.

IV
33.1 1970/ 07

An Abstract of Prediction of Driving Behavior Following a Group Driver Improvement Session

By: Robin S. McBride

To determine the extent to which driving record subsequent to a driver improvement meeting could be predicted from a personality test and biographical questionnaire.

IV