Very Cool, I must say.
I wonder what sort of volume/speed brick roads can handle? 50km/h?
Note that the first link mentions the bricks just "automatically" falling into place, but if you dig deeper and watch the youtube videos it becomes clear that the two-three guys up on the machine are placing all the bricks by hand.
Also, it claims 400 meters per day. That actually seems kind of a low number, based on how fast that machine was moving!?