Construction works in Japan are fascinating. I've been in Tokyo some years ago and while strolling along the palace we came by an construction site for a new skyscraper there.
We had to take break to watch this perfection. http://imgur.com/a/IFMDl Those workers open the gate just in time for the next truck to come in and open as well as direct the traffic on the 3-lane road for the time the truck needs to get out. All this takes few minutes. There is no jamming up of traffic. The frequency of trucks coming in and leaving was astonishing. There must have been dozens of trucks on the roads of Tokyo at every moment.
I would have loved to see how that works inside.
I live in Germany. A country that is know for their efficiency, accuracy, etc. but if what Germans do is efficiency then what those workers did was something completely different and superior.