Final answer:
While traffic rules are strict for safety reasons, there are exceptional cases where breaking a rule like crossing double yellow lines or running a red light can be justified to avoid greater harm or to respond to an emergency, such as a medical urgency.
Step-by-step explanation:
Traffic rules are essential for road safety and must be followed unless mitigating circumstances dictate otherwise, such as the need to avoid an obstruction. There are times when the infraction of a traffic rule, such as crossing double yellow lines or proceeding through a red light, may be justified by the immediate necessity to prevent a greater harm or to respond to an emergency situation. For example, making a U-turn across double yellow lines to avoid a sudden obstruction in the road or running a red light to transport a pregnant woman in labor to the hospital at 4 am when there is no other traffic could be considered necessary actions given the circumstances.
However, such decisions should be made with utmost care, considering the potential risks involved. Safety of all road users should remain a priority. When in doubt, following standard traffic regulations is the recommended course of action.