A driver must be able to decipher color to read a traffic signal.

The statement regarding a driver needing to decipher color to read a traffic signal is accurate in the context of visibility conditions. Traffic signals are designed to convey messages through color, which is critical for identifying the status of the signal—red for stop, green for go, and yellow for caution. However, the ability to decipher colors is not solely required to understand traffic signals.

In certain circumstances, such as during the day when visibility is clear and distinct colors can be easily seen, this becomes apparent. However, there are situations, such as at night or in poor weather conditions, where visibility might be compromised. In these instances, drivers can still remain aware of the signal status by relying on the position of the lights and other visual cues. For instance, the position of a light being illuminated or other traffic indicators can guide drivers.

Furthermore, colorblind individuals may face challenges in differentiating between specific colors associated with traffic signals but can still safely operate a vehicle by relying on location and behavior of signals and other vehicles. Therefore, the premise of needing to decipher color for safety is nuanced and does not solely apply to every driving context.