The spectral efficiency of a millimeter wave communication system is enhanced by using multiple receive and transmit antenna elements, arranged in arrays. The compact size and low profile of the trailer allows the entire trailer with mounted container to be rolled into and out of standard intermodal containers as an integrated unit. When it is determined, while guiding the driving user, that the user is going to get off the vehicle, the processor generates navigation data Dnvg including the information about the destination point, and transfers the navigation data to a sub-device. The containers are tested by a measuring device trace-gas-analytically, e.