The Minnesota Department of Public Safety

Media Campaign Evaluation

About the Client

dps-colorThe Minnesota Department of Public Safety – Office of Traffic Safety (OTS) is in the business of saving lives and reducing serious injuries related to traffic crashes in Minnesota.  Continuous efforts by the OTS aim to reduce undesired behaviors such as drinking and driving, driving without a seatbelt, speeding and texting while driving to name just a few.

The OTS designs innovative programming and messaging in these areas to accomplish these goals.  And to inform these efforts, the OTS regularly conducts research, analyses and evaluation to determine crash trends, identify emerging issues, and measure effectiveness of its efforts.  To the extent that messaging and programs are effective, lives are saved.


The Office of Traffic Safety (OTS) was created in response to the federal Highway Safety Act of 1966. Under the act, states became eligible for federal assistance for state and community highway safety programs. Despite improvements in driver behaviors, vehicle design, roadway engineering, emergency medical services and enforcement strategies since that time, traffic crashes continue to be the leading cause of death for Minnesotans who are teens and young adults.


The ongoing challenge for OTS is to show improvement in desired traffic safety behaviors among residents and document its ability to make a difference.  As a result, the OTS depends on reliable, valid data to continuously guide its approach in improving media outreach and enforcement programming efforts.

Corona’s Latest Approach

Corona has worked with OTS for over eight years to collect and analyze statewide data. Most recently (2012) the OTS retained Corona to conduct an annual     single-wave public telephone study via landline and cell phone surveying.  This robust survey required more in-depth analysis of respondent feedback.

Corona implemented the 2012 survey with a statewide random sample of over 930 Minnesota residents, including an oversample of young, unmarried males– the target audience most likely to exhibit undesirable driving-related behaviors.  As with prior surveys, this sampling allowed results to be drawn for this priority subpopulation, specifically, as well as for statewide residents overall and other subpopulations of interest (i.e. gender, rural vs. urban, and age).

Also in 2012, the Corona team examined interrelationships in survey responses more holistically, and outside of the traditional traffic safety focus areas.  This analysis enabled our team to detect factors that relate more strongly to actual self-reported behavior, which may be somewhat consistent for some residents across traffic safety focus areas.

In looking across the broad spectrum of awareness, risk perception and behavior, our team discovered that perceived risk (when it exists without campaign awareness) is a factor more highly related to desired behavior than awareness of messaging (when it exists without risk perception).  Furthermore, a key finding among the key target population of young unmarried males was that, while four out of five have high levels of campaign awareness, they also tend to have relatively lower levels of risk perception and the desired self-reported behaviors.

The Outcome

The survey results have resulted in the OTS including new, innovative projects to address traffic safety concerns in their 2014 Highway Safety Plan. In addition, results from the nine core survey questions are reported to the National Highway Traffic Safety Administration NHTSA. The results help to provide a nationwide look at impaired driving, seat belt use and speeding.

Read the full report on Minnesota’s Department of Public Safety website.

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