Abstract: With?the?development?of?the?expressway?in?China,?the?traffic?accidents?caused?by?the?tiredness?resulting?from?the?long?time?driving?are?gradually?increasing.?According?to?the?analysis?on?746?ROR?（Run-Off-Road）?traffic?accidents?from?Yu-Qian?Expressway?（from?Chongqing?to?Guizhou?Province）,?Yu-Fu?Expressway?（from?Chongqing?to?Fuling）?and?Cheng-?Yu?Expressway?（from?Chongqing?to?Chengdu?）?ranging?from?2005?to?2006,?the?general?distributing?law?of?ROR?accidents?are?explored?from?five?aspects,?that?is?accident?amount,?accident?type,?accident?time,?automobile?type?and?highway?section?where?ROR?happened.?At?last,?the?necessity?and?urgency?to?implement?the?rumble?strips?on?expressway?in?large?scale?is?emphasized?;?furthermore,?some?suggestions?about?the?safety?administration?of?ROR?traffic?accidents,?the?selection?and?the?layout?of?rumble?strips?are?proposed.

Key words: traffic safety , ROR （Run-Off-Road） traffic accident , distributing law analysis , rumble strips ;

摘要： 着重选择渝黔高速(重庆??贵州)重庆段、渝涪高速(重庆??涪陵)、成渝高速(重庆成都)重庆段为研究对 象,统计分析了2005年??2006年共计746起单车掉线事故(ROR)资料,从事故发生数量、事故分布形态、事故发生 时段、事故涉及车型以及事故路段分布5个方面探讨了高速公路ROR事故的一般规律,提出了在高速公路上大规 模实施路侧振动带的必要性和紧迫性;同时对高速公路ROR事故的安全管理以及路侧振动带的类型选择、设置位 置提出了建议。

关键词: 交通安全, ROR(单车掉线)事故, 规律分析, 路侧振动带