Modeling driver visual demand on complex horizontal alignments

被引:15
作者
Easa, S [1 ]
Ganguly, C [1 ]
机构
[1] Ryerson Univ, Dept Civil Engn, Toronto, ON M5B 2K3, Canada
关键词
Alignment; Curvature; Driver behavior; Highway design; Highway safety; Mathematical models;
D O I
10.1061/(ASCE)0733-947X(2005)131:8(583)
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Visual information is one of the vital elements that affect driver workload. Previous studies have modeled driver visual demand on simple horizontal curves and have found that it is significantly affected by the curve radius. This paper models driver visual demand on complex horizontal alignments that may include simple, compound, and reverse curves. Two sets of visual demand models were developed (curve models and tangent models) using visual demand data collected on 18 highway alignments on a driving simulator. The results show that visual demand is affected by the characteristics of not only the current element but also the preceding element. The characteristics of the preceding element included curve radius, curve direction (right or left), deflection angle, and lane width. As such, the developed models represent important tools for accurately evaluating driver workload on complex horizontal alignments.
引用
收藏
页码:583 / 590
页数:8
相关论文
共 11 条
[1]  
AASHTO, 2001, A policy on geometric design of highways and streets
[2]  
Alexander G. J., 1986, DRIVER EXPECTANCY HI
[3]  
[Anonymous], 1999, GEOM DES GUID CAN RO
[4]  
EASA SM, 2003, GEOMETRIC DESIGN GUI
[5]  
FITZPATRICK K, 1999, FHWARD99172 US DEP T
[6]  
Ganguly C.D., 2003, THESIS RYERSON U TOR
[7]  
KRAMMES RA, 1994, FHWARD94034 US DEP T
[8]  
MESSER CJ, 1979, TRANSPORT RES REC, V757, P7
[9]  
SHAFER MA, 1994, THESIS TEXAS A M U C
[10]  
Wooldridge MD, 2000, TRANSPORT RES REC, P71