The impact of curve radius variations on vehicle driving states on 2-lane roads

Smaller curve radii result in lower average driving speeds. In the circular curve sections of the road, lateral lane position tends to be larger. As curve radius decreases, the influence of driving speed on lateral lane position magnitude becomes more pronounced. Higher average speeds on curves are associated with larger lateral lane position magnitudes. Under the same speed conditions, vehicles making left turns exhibit larger lateral lane position magnitudes compared to those making right turns. These findings highlight the significant impact of curve geometry on vehicle driving behavior, providing insights for curve alignment design.