This video shows one of the unique dual-driver truck/trailer combination vehicles used by Boeing to transport aircraft wing spars to the Boeing assembly facility in Everett, Washington.
The first driver, as with any other truck, is in the “front” cab. You can see the second driver in his cab underneath the trailer, just in front of the rear wheels.
Boeing trailer not just has the apparatus towing in advance with the taxi additionally an administrator out back to control the second 50% of the heap.
It must be an intriguing viewpoint steering the back of the trailer from directly before the last pivot to ensure that everything is in line as this creature of a truck barrels down the roadway.