Participant Characteristics and Speeding Behavior during an Advisory Warning and Cash Incentive Intervention

Speeding-related crashes are responsible for a significant economic and human toll to society. This paper presents data from a field study evaluating the effectiveness of in-vehicle automated feedback and monetary incentive systems to reduce speeding behavior. The current effort was a unique opportunity to compare self-reported speeding beliefs and behaviors to observed driving behaviors and quantify associations between participant characteristics and driving behaviors. Fifty participants completed the four week study within three experimental groups: automated feedback with monetary incentive (n=20), automated feedback without incentive (n=20), and control (n=10). Results indicated little connection between self-reported and observed speeding behaviors, despite high correlation between self-reported and observed driving patterns overall. Associations were found between sensation-seeking personalities and speeding behavior. Few differences were found between sexes. Results highlight the relationship between personality and driving behavior, and suggest a closing gap between male and female driving behaviors.