路侧交通标志设置数量及位置研究_任锐.pdf

23 11 Vol123 o111 2006 11 Journal of Highway andTransportation Research and Development ov12006 : 1002O0268 (2006) 11O0111O05 任 锐, 李文权 ( , 210096) : 高速公路和城市快速路通常将内侧车道设置为小车道, 外侧车道设置为大车道, 这将有可能导致内侧小车驾驶 员视 被遮挡, 无法及时获得路侧交通标志的信息采取相应的措施, 从而引发交通事故通过对驾驶员对路侧交通标 志视认过程的分析, 提出了计算单 个路侧交通标志被遮挡概率的计算方法, 并运用概率论的知识建立了求解连续多 个 路侧交通标志设置数量的数学模型和标志设置位置的计算公式, 提出了路侧交通标志设置的具体步骤通过计算示例 证明理论模型及算法实用可行 : 高速公路; 城市快速路; 交通标志; 安全设施; 遮挡 + : U49115 22 : A Research on Amount and Position of Road Side Traffic Signs RE Rui, LI WenOquan (Transportation College of Southeast University, Jiangsu anjing 210096, China) Abstract : For intercity and urban expressways there are lanes usually divided for different vehicles, with offside lanefor cars and near- side lane for trucks1This may made the drivers of the cars can. t see road side traffic signs, which may cause traffic accidents1On the base of analyzing the recognizing process of road side traffic signs, the methodto calculate the probability of the individual road side traf- fic sign being blocked off is put forward1The mathematical models of road side traffic signs. setting amount andposition are proposed, in- cluding the traffic sign development program1The demonstration results show that those models and theory arefeasible1 Key words: expressway; urban expressway; traffic signs; safety devices; block off GBO5768O1999 5 [1] 6[2] , 215 m [3] , 215 m,