Venus,
SH has these "traffic facilitators" -- basically old ah peks and fierce ah mas in dirt brown colored uniforms, gloves, hats and some have very funky eyeshades with a whistle hanging off their lips. They basically monitor the millions of bicyclists and pedestrains who think the road is theirs and not for cars etc.
If never obey, they will pull u to one side and nag nag scold scold. Else sometimes, they will stand there and just talk philosophy for no reason, blowing the whistle at people/cars/animals...whatever they fancy.
They can make you turn back and start crossing again, or can even impose a fine on you, though seldom la. They think they are of "police" caliber also...and you kinda respect them maybe 1% of the time, that is, until you watch them spit and shout. HAHAHA
Funz hor?