Which safety measure is recommended for nighttime emergencies on roadways?

Operating amber warning lights only is a recommended safety measure for nighttime emergencies on roadways. Amber lights are visible and help to indicate the presence of an emergency vehicle without causing excessive glare for other drivers on the road. They are designed to alert oncoming traffic while maintaining visibility for emergency responders without creating a blinding effect.

Using amber lights helps to enhance safety by allowing other vehicles to see the emergency scene from a distance, providing them time to react and maneuver safely around the area. This is particularly important at night when visibility is reduced, and drivers may not easily see a stationary emergency vehicle or personnel on the roadway.

In contrast, relying solely on bright white lights can create glare that may impede visibility for other drivers, increasing the risk of accidents. Continuously activating sirens may not be necessary in all nighttime scenarios, especially since they can contribute to noise pollution without being particularly effective for alerting drivers at a distance. Turning off all lights would lead to an unsafe situation where both the emergency responders and the affected motorists could be at increased risk due to low visibility.