基于熵权-区间逼近的高速公路路段安全评价

发布时间：2018-05-26 09:42

本文选题：道路工程 + 熵权　；参考：《公路工程》2017年02期

【摘要】：针对高速公路安全性评估方法采用实测数据点作为样本数据的现状,以及权重确定的主观性问题,引进区间数理论对高速公路路段安全性指标实测数据进行了区间估计,并运用熵权理论确定各指标权系数,建立了区间数逼近评估模型对高速公路路段安全性进行综合评估。基于熵权-区间逼近评估模型既保证了数据采集的连续性,也保证了权重确定的客观性。实例分析表明,运用基于熵权的区间数逼近算法能够对不同路段的安全性进行整体评估。
[Abstract]:Aiming at the present situation of using measured data points as sample data and the subjective problem of weight determination in expressway safety assessment method, the interval number theory is introduced to estimate the measured data of expressway section safety index. The entropy weight theory is used to determine the weight coefficients of each index, and an interval number approximation evaluation model is established to evaluate the safety of freeway sections. The evaluation model based on entropy weight-interval approximation not only guarantees the continuity of data collection, but also ensures the objectivity of weight determination. The analysis of examples shows that the interval number approximation algorithm based on entropy weight can be used to evaluate the safety of different sections of road as a whole.
【作者单位】：湖南大学土木工程学院;
【分类号】：U492.8

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