Psychology says people who keep changing lanes while driving aren't always in a rush. Some drivers move from one lane to another when traffic slows down, expecting the next lane to move faster. They may repeat this several times during one journey. The behaviour can be connected to impulsivity, stress, frustration and a need to feel that they are controlling the situation. Traffic creates conditions where drivers have limited control over what happens next. Lane changes can give them a sense of action. The car can also create distance between the driver and other people. This can reduce social restraint and change how a person behaves on the road.
