疲劳驾驶预警系统统计分析表明,80%~90%的交通事故是人的因素造成。疲劳和白天过度嗜睡所导致的警觉性下降和反应迟钝正成为引发诸多交通事故的主要原因。在英国,车祸肇事原因有近2成跟打瞌睡有关。2012年,法国共有143人丧命于高速公路车祸,其中将近一半(42%)因打瞌睡引起,早晨5时~8时以及下午2时~4时之间是驾车者疲劳的危急时段。在美国,62%的人曾有过疲劳驾车经 Statistics and analysis of fatigue driving warning system show that 80% -90% of traffic accidents are caused by human factors. The decreased alertness and slow reaction caused by fatigue and excessive daytime sleepiness are among the major causes of many traffic accidents. In the UK, about 20% of the causes of the accident were related to dozing off. In 2012, a total of 143 people were killed in highway car accidents in France. Almost half (42%) of them were caused by snooze. Between 5 a.m. and 8 p.m. and 2 p.m. to 4 p.m., a critical period for driver fatigue. In the United States, 62% of people have had fatigue driving