During the process of the car moving on the road, the coefficient of traction at the wheels and the coefficient of rolling resistance at the wheels may be different, thus affecting the motion trajectory of the car. This paper presents the results of studying the influence of the traction coefficient and the corresponding rolling resistance coefficient of dry asphalt pavement on the turning characteristics of trucks by the Monte Carlo method. The research results can be applied to evaluate the rotational dynamics of trucks and make some recommendations for using trucks when entering a roundabout.