What can excessive track curvature lead to?

Excessive track curvature can significantly impact the safety and performance of rail operations. When track curvature is too sharp, it leads to increased lateral forces acting on the train and its components. This results in greater wear on the wheels and tracks, as the train has to navigate tighter turns, which can exacerbate wear and tear on both. Additionally, as trains travel through curves, stability can be compromised, leading to potential derailments or accidents if the curvature exceeds safe operational limits. Therefore, the correct answer highlights the negative consequences associated with excessive track curvature, emphasizing the importance of maintaining proper track alignment for the safety and efficiency of rail systems.