September 16, 2021
According to the studies there are three factors that cause traffic accidents, i.e. road, human (road users), and vehicles. And human factor is the main factor of traffic accidents. The causes include sleepiness, fatigue, breaking the speed limit, not keeping distance, alcohol or drugs, illness, cell phone or electronic device usage, etc. Among these conditions, sleepiness and fatigue are the most common and unique factors. And studies show that these both factors mainly are caused by human activities which incompatible with the biological rhythm of the human body.