@@atarimaeda6538 It wasn't just the fact they weren't dirty, it was the very large amount of very clean "chrome plating" on them, and the entire 'site' roadway was covered in steel plates, which of course helps a lot, also the fact they had their wheels washed before leaving the 'site'. Over here they would sooner let all lorries leave the site with earth all over them, then waste money on employing 2 or 3 'road sweeping' lorries to go up and down the road all day long sweeping it and cause a nuisance to the traffic because of their slow speed.
From the video, you can see a female lorry driver among all lorry drivers. Don't look down on all ladies. In Japan, it is not unusual to see ladies driving cars, lorries or even mobile cranes! In Singapore, we even see female bus captains( formerly bus drivers).
