Drowsiness4 and distraction5 are leading causes of road traffic accidents and deaths. Vibrating seats, belts or foot pedals could alert6 drivers in a subtle way to a dangerous situation.

• 打瞌睡与分心是造成道路交通事故与死亡的主因，可震动的座椅、安全带或脚踏板可以巧妙地提醒驾驶员危险的状况。