in china ,htere are millions of people on the streets every day.people go to different directions.at the crossing,there are red and green traffic lights,so people follow the traffic rules.go across the street when the light is green,but when there isn;t a traffic light,people just go across the street when there are less cars.it is not a good habit to cross the treet whenver they want,but it is the way people in china do.and they never think it will cause many problems on the street.maybe people need to learn more about the rules.