美 国 综 合评价系统(GES)1 992年数据库资料

显示，汽车追尾碰撞是道路交通事故的主要形式之

一，其占总碰撞事故起数的23 n1。多年来，国外对

追尾碰撞预警系统及避免系统进行了大量研究，结

果表明，借助于追尾碰撞预瞥系统，能使驾驶员制动

响应时间和追尾碰撞数量减少，追尾碰撞降低率可

达620a[2,调查表明中国的高速公路追尾碰撞发生

起数约占总事故起数的33. 6 ，其造成的经济损失

约占总数的40 -U.S. Comprehensive Assessment System (GES) 1 992 Year database information, rear-end collisions are one of the main forms of road traffic accidents, the total number of crashes from 23　n1. Over the years, foreign to the rear-end collision warning system and to avoid a large number of systems, the results show that the pre-warning system by means of rear-end collision, the driver can brake response time and reduce the number of rear-end collision, rear-end collisions reduce the rate of up to 620a [ 2, the investigation shows that China' s highways since the number of rear-end collision occurred about the total number of accidents of 33.6, the economic losses caused by about 40　of the total number of