Ismail K,Sayed T.New algorithm for calculating 3D available sight distance[J].Journal Transportation Engineering,2007,133(10):572？581.
[3]
Lovell D J.Automated calculation of sight distance from horizontal geometry[J].Journal Transportation Engineering,1999,125（4）：297？304.
[4]
Yasser H,Tarek S .Effect of driver and road characteristics on required preview sight distance [J] .Canadian Journal of Civil Engineering,2002,29(2):276？288.
[5]
杜博英,方守恩.分段式三次抛物线的视距及设计方法[J].公路交通科技,2002,19(5):45？47. DU Bo？ying,FANG Shou？en.Sight distance and design method of the transitioned vertical curve[J] .Journal of Highway and Transportation Research and Development,2002,19(5):45？47.
[6]
王福建，曾学贵.公路行车视距检验的三维表面模型方法[J].公路交通科技,1999,16(1):20？22. WANG Fu？jian,ZENG Xue？gui.3D surface model method for highway sight distance test[J].Journal of Highway and Transportation Research and Development,1999,16(1):20？22.
[7]
赵永平，杨少伟，赵一飞.具有中央分隔带公路弯道外侧超车车道的视距[J].长安大学学报：自然科学版，2004,24(5):31？34. ZHAO Yong？ping,YANG Shao？wei,ZHAO Yi？fei.Passing lane stopping sight distance outside of median divider in freeway [J].Journal of Chang？an University:Natural Science Edition,2004,24(5):31？34.
[8]
李文权.高速公路路侧标志遮挡问题[J].交通运输工程学报,2006,6(3):97？102. LI Wen？quan.Blocking problem of freeway side traffic signs [J].Journal of Traffic and Transportation Engineering,2006,6(3):97？102.
[9]
郭应时，付锐，袁伟，等.通道宽度对驾驶员动态视觉和操作行为的影响[J].中国公路学报,2006,19(5):83？87. GUO Ying？shi,FU Rui,YUAN Wei,et al.Influences of passage width on driver？s dynamic vision and operation behavior[J].China Journal of Highway and Transport,2006,19(5):83？87.
[10]
王佐，刘建蓓，郭腾峰.公路空间视距计算方法与检测技术[J].长安大学学报：自然科学版，2007,27(6):44？47,62. WANG Zuo,LIU Jian？pei,GUO Teng？feng.Calculating method and appraising technique of highway 3D？view sight distance[J].Journal of Chang？an University:Natural Science Edition,2007,27(6):44？47,62.
