Study on Road Safety Evaluation of Subjectivity and Objectivity Based on Cloud Theory
Xiaohuan Zhou, Zhizhong Li, Zhongyin Guo, Xiao-an Wang · 2012
According to road alignment and spatial geometric properties, this article adopts the spatial curvature of the expressway as an objective index, and the NASA - TLX scale of drivers as a subjective index. In order to address the fuzziness and the randomness of road safety problem, this article constructs the road safety cloud model of subjectivity and objectivity by applying of the clustering method and cloud generator algorithm. The case study shows that the model corresponds with reality, which can be applied in the linear evaluation of expressways for future reference.