夜视系统

发生在黄昏和黑夜的道路交通事故．比发生在白天的事故具有更大更严重的危害性。尽管夜间的平均立通量密度已经减小至白天的15％左右．但在这段时间，因交通事故而造成的人员死亡率却超过了三分之一。

Night vision Systems

The risk of serious injury in road traffic is much greater in twilight and in the dark than during daylight hours. Although average traffic density is reduced to only around 15 per cent at night, more than one in three fatal traffic accidents occur at this time.