山区高速公路桥隧段行车安全评价模型研究

桥隧连接段属于道路环境突变段。研究表明在道路环境突变段所产生的交通事故多为恶性事故，为了改善桥隧段的行车安全，利用模糊理论的相关方法来评价桥隧段行车的安全性，并在计算隶属函数隶属度的时引入人工神经网络的相关理论，避免了确定隶属函数时的主观性和模糊性；在方法类型的角度，使用模糊理论来评价桥隧段行车的安全性，在评价时使用了多个层次、多个因素的分析方法，在解决道路行车安全评价时具有一定的优越性，使得评价更趋于精确，客观。

The Connecting Section Between Tunnels and Bridges in Mountainous Highway Traffic Safety Evaluation Model

The connecting section between tunnels and bridges is a road environment mutant seg-ment. Studies have shown that road traffic accidents in the environmental mutation section are mostly se-vere accidents. In order to improve traffic safety in the connecting section between tunnels and bridges, fuzzy theory to evaluate the relevant security of the connecting section between tunnels and bridges and the theory of artificial neural network in the calculation of membership function membership are adopted, avoiding the subjectivity and ambiguity when determining the membership function. In the methodological view, fuzzy theory is used to evaluate the safety of the connecting section between tunnels and bridge , and multiple levels, multiple factor analysis methods are used in the evaluation. Evaluation results are consistent with the conclusion of the actual driving test subjective evaluation and expert commentary method. The road safety evaluation has incomparable superiority.