What should you do after a vehicle has passed you at night when you plan to overtake?

The correct approach after a vehicle has passed you at night, when you plan to overtake, is to flick your dimmer twice to signal your intent. This action serves two primary purposes. Firstly, it alerts the driver of the vehicle you intend to pass that you are planning to overtake them, enhancing communication between drivers and fostering safer driving conditions. Secondly, it helps to confirm to the oncoming traffic that you are not just following closely behind but are preparing to make a maneuver.

This signaling practice is particularly important at night because visibility is reduced, and other drivers may not be aware of your actions unless explicitly communicated. Proper signaling increases safety by helping to prevent misjudgments about each other's intentions on the road.

In contrast, simply waiting to overtake or moving closer to the vehicle without signaling could lead to confusion or misinterpretation of your actions, especially at night when visibility is compromised. Overtaking without signaling is also dangerous as it does not inform other drivers of your actions and can lead to accidents. Therefore, signaling correctly with your dimmer lights is the best practice in this scenario.