This is a yellow box, many Singaporeans have seen it.

On the road it means: Do not enter unless you are turning in from an adjacent street.

Singaporean intepretation: Enter if you do not wish to be behind another car.

On MRT Platorm it means: Pls do not stand in this area, wait for passengers to alight.

Singaporean interpretation: Try to squeeze as many people into the yellow box as possible, anyone standing outside will be declared dead.

In army it means: Smoking area

Singaporean intepretation: Pls stand anywhere but here if u smoke