关于一、三级公路安全性认知因素的试验建模研究

在实测86处一级公路典型路段和188处三级公路典型路段道路结构基础上,确定驾驶员对国道一、三级公路的安全性认知因素集,进而针对一级公路的38处样本路段和三级公路的77处样本路段,组织47名驾驶人员进行现场认知评价试验,并应用模糊集合原理和模糊统计方法对评价试验得到的2829组(一级路673组、三级路2156组)有效认知试验评语数据进行分析处理,得到一、三级公路安全性认知因素的模糊评价隶属函数,从而给出驾驶人员对一、三级公路道路条件和交通环境的安全性模糊评价模型。

Tests and Modeling for the Safety Perception Factor on First-grade and Third-grade Highway

On the basis of road structure parameters which obtained from the typical 86 first-grade highway segments and 188 third-grade highway segments, the driver's safety perception factor collection to first-grade and third-grade highway is determined. According to the field perception evaluation tests of 47 drivers on 38 first-grade highway segments and 77 third-grade highway segments, by utilizing the principles of fuzzy collection and the fuzzy statistics method, the 2829 groups (including 673 groups on first-grade highway and 2156 groups on third-grade highway) of valid perception evaluation test data are analyzed and processed, the membership function of driver's safety perception to road conditions on first-grade highway and third-grade highway is obtained, finally the fuzzy appraisal model of driver's safety perception to road conditions and traffic environment on first-highway and third-highway is put forward.