高速公路路面状态对交通安全的影响评价

选取路面损坏状况指数和路面抗滑性能指数作为路面状态的表征指标，速度标准差系数作为交通流表征指标间接反映交通安全状态。在考虑交通量影响的情况下，仿真模拟实际路段沿线交通流速度标准差系数的变化情况，结合已有的路面检测数据，建立高速公路路面状态对交通安全的影响评价模型，并提出了影响分级标准。基于提出的模型，开发了一套评价软件，以沪宁高速公路为应用实例进行分析。结果表明：本文所构建的关系模型可准确评价高速公路路面状态对交通安全的影响。

Evaluation of the Impact of Freeway Pavement State on Traffic Safety

The pavement surface condition index and skidding resistant as the characterization indicators of pavement state while speed coefficient was taken as traffic flow characterization indirect indic state of the traffic safety. Considering the impact of traffic volume, of speed standard deviation coefficient of traffic flow along the simulated. Meanwhile, combined with the existing road testing data, an index were selected standard deviation ators t the ch actual o reflect the anging course sections was evaluation model of the pavement state＇s impact on traffic safety was established. Furthermore, the evaluation classification standard was put forward. An evaluation software was developed based on the proposed modle. Shanghai-Nanjing freeway was taken as a case for analysis. The results show that the proposed relation model can be used to evaluate the impact of pavement state on traffic safety accurately.