What lights should be shown on a parked car at night on an unlit public road?

When a car is parked at night on an unlit public road, it is important to ensure that the vehicle is visible to other road users. Having at least one side lamp on both the front and rear of the car illuminates the vehicle from the sides and makes it more noticeable, especially to approaching traffic. This is crucial for safety reasons, as it helps prevent accidents and ensures that other drivers are aware of the vehicle's presence.

Using side lamps near the center of the road effectively signals the parked position of the vehicle, allowing approaching vehicles to adjust their path accordingly. The proper use of lights in this context adheres to road safety regulations and is a responsible practice for any driver.

Other options, such as having no lights or only the headlights, do not provide adequate visibility for the parked vehicle. Flashing hazard lights are typically used for roadside emergencies or to indicate that a vehicle is a temporary obstruction, which may not be appropriate for a properly parked car. Thus, the requirement for side lamps is aligned with safety protocols for parked vehicles during nighttime on unlit roads.