What constitutes a valid traffic signal violation?

A valid traffic signal violation occurs when a driver fails to follow the established traffic signals regulating vehicles and pedestrians. Ignoring pedestrian signals is indeed a violation because these signals are put in place to ensure the safety of pedestrians crossing the street. When a driver disregards these signals, they increase the risk of collisions and endanger pedestrians.

While running a yellow light can often be legally permissible if a driver can safely clear the intersection before the light turns red, it may also lead to violations or accidents if misjudged. Driving with a broken taillight or speeding in a school zone are serious infractions but do not specifically relate to traffic signal violations; they involve different aspects of driving regulations. Thus, the best representation of a valid traffic signal violation in this context is the act of ignoring pedestrian signals.