What should be done on a narrow road where two vehicles cannot pass?

When approaching a situation on a narrow road where two vehicles cannot pass, it is essential to double your stopping distance. This action is crucial because narrower roads often have limited visibility and may not provide sufficient space for emergency maneuvers. By doubling your stopping distance, you create a buffer zone that allows for greater reaction time if suddenly faced with an obstacle, another vehicle, or a pedestrian.

Doubling the stopping distance accounts for the potential for unexpected events, such as a vehicle needing to reverse or an obstruction appearing in the road. This method prioritizes safety not just for yourself but also for other road users. A greater stopping distance enhances your ability to respond to various situations, which is particularly important in narrow contexts where space is restricted.

In contrast, while reducing speed significantly or increasing following distance are both reasonable actions on narrow roads, neither explicitly addresses the need for enhanced stopping capability. Signaling to the other vehicle to stop might not always be appropriate and could potentially lead to misunderstandings or unsafe situations. Therefore, doubling the stopping distance remains the most effective and proactive strategy in this scenario.