There is a new reason for truckers to worry about four-wheelers during the holidays, with a new survey showing aggressive driving is higher during this time of the year.

State Farm and KRC Research found two out of three U.S. auto drivers have experienced an act of aggressive driving six times or more in the past three months from another driver.

Both also found with a large number of drivers affected by aggressive driving already, nearly a third of drivers say their likelihood of engaging in aggressive driving increases during the winter holidays.

Aggressive driving can include speeding or driving too fast for conditions, improper lane changing or passing and tailgating, according to the National Highway Traffic Safety Administration.

Among the survey’s key findings:

• 44% of car drivers reported that they have engaged in aggressive driving behaviors in the past three months.

• 32% of younger drivers (ages 18-29), 28% of middle aged drivers (ages 30-49) and parents (30%) were significantly more likely to report being provoked or engage in aggressive driving around the major winter holidays compared to only 9% of older drivers (ages 50 and older) and non-parents (15%).

• About half of survey respondents perceive men and women to be equally courteous when driving. When it comes to aggressive driving, however, the majority (54%) of drivers cite men as the most likely culprits of aggressive driving, compared to only one in 10 who said that women are more likely. The remaining 37% of drivers reported men and women to be equally likely to engage in aggressive driving.

• Top situations most likely to make drivers respond aggressively were traffic jams (63%), running late (55%) and road closures or construction (47%)

The results come from an online survey of 1,000 U.S. car drivers over 18 years old.