Semi-trailer astern of need to pay attention to the following: all semi-trailer back to back in the opposite direction, and when to reverse back must first give feel the sense of distance and direction to the car.
In a back to back, be sure to observe good behind the mirror or command people's instructions.
Such as you are now back to the right, remember must see right hind feet and the distance of the road intersection, don't kill direction, at the start of the semi-trailer is down while correction, after looking at dragging plate right hind feet into the streets, in the direction to hurry up, this time to let the body to come here as soon as possible, remember this time after thinking of some on the left side of the car horn.
If a not to, the best is on the up, back in the back, as the driver will understand.
Remember back must not rush.
Relevant tags: semi-trailer axle