Which combination of lights provides maximum visibility during night operations?

The combination of lights that provides maximum visibility during night operations effectively combines warning lights and directional indicators while managing the potential issues that headlights can cause in certain contexts. When red and amber warning lights are activated, they help to alert other road users to the presence of emergency vehicles or situations needing attention, thus enhancing safety for both the responders and the public.

In this scenario, having the headlights turned off minimizes glare, which is particularly beneficial in conditions where visibility can be hampered by other light sources or weather conditions, such as fog or heavy rain. The use of traffic directional boards set to 'ON' adds another layer of visibility and directionality, informing approaching traffic about what they should expect and how they should navigate.

This combination helps maintain a balance between maximizing the visibility of the vehicle and not overwhelming other drivers with excessive bright light sources that may diminish their overall night vision.