It's not at all clear to me how this "traffic bean" works from looking at the linked page. Is it just a free-for-all zone that makes drivers slow down due to b

It's not at all clear to me how this "traffic bean" works from looking at the linked page. Is it just a free-for-all zone that makes drivers slow down due to being confused? This seems to be a philosophy that's gaining ground - make no-rules areas and cars will be forced to slow down to navigate the zone, and this makes things safer (I'm skeptical about that bit).