Effective & reflecting

This is what I captured on the other day as I was driving down the Cambie street. I can't help but praise at the designer of this "caution sign" as the author uses the essence & corner stone of human society to send a powerful message to us.

At the same time however, my spine is chilled by the fact of the NEED of posting this sign in the public. I guess too much construction had been going on and people simply forgot about or grew tired of driving slowly in construction zones.