The two-truck trailers carrying the Giant Mine Truck were commonly used before the low-bed trailer system was developed to transport heavy loads. In this system, there is perfect synchronization between the two truck drivers.
In order to carry the giant mining truck on two truck trailers safely, the trailers are connected to each other with iron bars so that the speeds of the two trucks are equalized. But they must complement each other in terms of steering management. For this purpose, radio and external escorts that follow the transportation are used.
