be well over sixteen meters long. Because the trailer extends a considerable distance behind the cab, it can be difficult for an overtaking driver to judge exactly when the entire vehicle combination has been passed.
This can be particularly relevant when trucks are traveling at approximately the same speed. The speed difference during an overtaking maneuver may sometimes be only a few kilometers per hour, meaning that the vehicles can travel alongside each other for quite some time.
The truck driver being overtaken often has a clear view of the rear of the other vehicle. Once the entire vehicle combination has passed, the driver may briefly signal with the headlights. This can indicate that the overtaking vehicle appears to have enough room to move back to the right.
Such a signal is generally intended as helpful communication rather than an attempt to pressure the other driver. It can help the
