Final answer:
The practice of allowing another road user to proceed first is known as yielding. This keeps traffic flowing smoothly and safely. Exceptional situations, like a medical emergency, can present moral dilemmas where breaking traffic rules might be considered for the greater good.
Step-by-step explanation:
To allow another vehicle or roadway user to proceed first, when they have the privilege of having immediate use of a part of a roadway, is known as yielding. Yielding is a fundamental rule of the road that contributes to the safe and efficient flow of traffic. It's a courtesy and a legal requirement that indicates a driver is prepared to stop if necessary to let another vehicle or user go first.
In the scenario with the pregnant woman who is about to deliver, applying Rule Utilitarianism (RU) suggests that sometimes breaking a traffic law, such as running a red light at 4 am with no other cars around, could be morally acceptable if it results in the greater good—namely getting the woman to the hospital safely and quickly.
However, when discussing whether a rabbit crossing the road would be safe, this involves assessing traffic and other risks rather than yielding or right-of-way laws. The safety of the rabbit crossing all 3 lanes of the freeway is not guaranteed even if the car is travelling in the furthest lane.