The crime of causing traffic accidents refers to violations of highway and water transportation management regulations, resulting in major accidents, causing serious injuries, deaths, or causing major losses to public and private property. According to the definition, which of the following is crimes? ['Zhang did not whistle when driving a train through a fork in the road, killing a passing child.', 'Wang drunk driving and was speeding through when intercepted by traffic police.', 'When Zheng was driving and transporting goods, the brakes failed and he ran down the cliff to avoid pedestrians.', 'A motorcycle driving from north to south knocked a middle-aged woman who was riding a bicycle to the ground, causing her head to bleed heavily. The car actually ignored the wounded moaning on the ground and fled east quickly.']