设计意图:随着汽车保有量的增加,交通安全问题日益凸显。交通事故仅次于溺水,业已成为威胁中国儿童生命的第二大原因。我们不由得常常发问,怎么会这样?放眼我们的周围,马路越修越宽,道路越来越堵,车辆随意停放,横穿马路的人比比皆是, Design intent: As car ownership increases, traffic safety issues become increasingly prominent. Traffic accidents, second only to drowning, have become the second leading cause of threat to the lives of Chinese children. We can not help but often ask, how could this be? Look around us, the more the road repair more wide, the road more and more blocked, the vehicles parked at random, people across the street abound,