Final answer:
A three-point turn is the safest way to make a 180-degree turn by allowing for a controlled maneuver with reduced risk. The ideal banking angle for a highway turn is dependent on physics principles ensuring a safe turn without reliance on tire friction.
Step-by-step explanation:
A three-point turn is the least hazardous method of making a 180-degree turn. It is a standard driving maneuver used to reverse direction on narrow streets or in situations where a U-turn is impractical. The three-point turn allows the driver to make the turn with a reduced risk of collision or loss of control compared to more aggressive turning methods.
When considering the ideal banking angle for a gentle turn on a highway, we must refer to physics principles, particularly those related to centripetal force and friction. The turn's radius and the ideal speed are also important factors. The ideal banking angle allows vehicles to maintain speed without relying excessively on friction between the tires and the road, thereby preventing skidding and ensuring a safe turn.