Final answer:
When encountering a yellow traffic light, one should prepare to stop if it is safe to do so. The light is a warning that the signal will soon turn red. However, in emergencies, like when a pregnant woman needs to get to the hospital, and the road is clear, proceeding with caution might be considered.
Step-by-step explanation:
The appropriate procedure when encountering a yellow traffic light is to prepare to stop if it is safe to do so. The yellow light is a warning that the signal is about to change to red, and it is intended to give drivers time to safely slow down and stop before the intersection. However, there are exceptional situations, like when a pregnant woman is about to deliver and needs to get to the hospital quickly. In such emergencies, and when the road is clear with no other vehicles around, one could argue that the most responsible and utility-maximizing action might be to proceed with caution. Nevertheless, under normal circumstances, the correct action is to slow down and prepare to stop.
In terms of pedestrian safety, a traffic signal benefits those crossing the road by providing clear indications of when it is safe to cross. Additionally, traffic signals manage vehicle and pedestrian traffic more effectively, especially in areas with high traffic density, like near a campus. Interpretations of road signs, including universal ones, must respect the local traffic regulations. Abiding by these regulations, such as stopping for a yellow light if able, significantly contributes to road safety for all users.