close attention may see something else happen after the light signal. Truck drivers regularly thank each other for this help. For example, a driver who has moved back to the right might briefly use their hazard lights. Sometimes, the left and right turn signals are also used for just a moment. By doing so, the driver is essentially simply saying: thank you.
It is a kind of informal language among road users . There are various types of these signals. However, they are not all officially defined and can differ
