A theory that states that a person’s level of self-control is a fundamental factor in determining patterns of behavior, including behavior on the road. People with low self-control tend to be impulsive, seek immediate gratification, ignore long-term consequences, and are prone to taking risks, which manifests themselves in aggressive or reckless driving. In contrast, people with high self-control are characterized by discretion, control of emotions, and consideration of consequences, which makes them more law-abiding and prone to defensive driving.