Final answer:
A single solid yellow line on your side of the centerline means no passing. While drivers are expected to obey traffic rules, some situations, such as a medical emergency, might present a moral dilemma in deciding whether to follow or break these laws for greater utility.
Step-by-step explanation:
The presence of a single solid yellow line on one's side of the centerline on a two-lane road indicates that passing is not allowed. This traffic control measure is in place to prevent accidents caused by overtaking in unsafe conditions. It's crucial that drivers adhere to this rule to maintain road safety. However, there can be circumstances where a driver may consider breaking traffic laws in emergency situations.
For instance, if there is a pregnant woman in the vehicle who is about to give birth and you are the only vehicle on the road at 4 am, some might argue that utility would recommend running a red light to reach the hospital more swiftly. This action is not typically within legal bounds but could be considered morally justifiable by Rule Utilitarianism (RU) because it maximizes overall good in that specific situation.
Nonetheless, this doesn't change the basic rules of the road, and drivers are generally required to obey all traffic signals, including speed limits and no-passing zones, to ensure safety for themselves and others on the road.