Pedestrian crossing lights

My job as courier puts me out and about everyday and everyday I see people not knowing how the pedestrian crossing lights that go yellow, solid red, flashing red work. People will stop when solid red and then not move when it is clear and flashing red, but much more dangerous are the people that just blow through the flashing red! There are signs that have been posted to educate but they have failed. I think the simple green, yellow, red lights would work better because people already understand them.