The town I live in is about to put cameras at all traffic lights to catch people who run red lights.It__1__me of how many people I’ve seen who take the yellow light as a __2__to go faster.I also can’t understand why people don’t move when the traffic light has turned green.Above all£¬there are those__3__situations in which someone doesn’t even__4__ that the light turns red£¬and just keeps going.That is why so many__5__happen£¡All these situations make me__6__the purpose of traffic lights.