摘要
针对当前公路交通安全评价方法中多以单一赋权带来评价结果的偶然性和局限性的问题,从道路线形、路面状况、安全设施和交通环境等4个方面构建了以公路安全等级评价为目标的公路安全评价二级指标体系;结合常用主、客观赋权方法特点,利用一致性检验,提出了改进的灰关联度组合赋权方法,构建了公路安全评价的优化改进模型。通过实例分析,结果表明:应用改进的灰关联度赋权方法可对构建的公路安全评价体系进行有效的公路安全评价,得到道路安全等级,同时也能确定各指标在某一特定项目评价中的权重及其对交通安全的影响程度。
In order to solve the haphazard and limitations caused by single weighting in highway traffic safety evaluation methods,considering the aspects of road alignment,road conditions,safety facilities and traffic environment,a 2-level indicator system for highway safety level evaluation is established. Combining with the common subjective weighting and objective weighting features,an optimized highway safety evaluation model is established based on the consistency check and the improved grey correlation combination weighting method. The result of case study shows that the application of improved grey correlation combination weighting method not only can effectively evaluate the overall safety of highway and get the safety level for the constructed highway safety evaluation system,but also can determine the index weight and its impact degree on the traffic safety in the evaluation of a particular project.
出处
《公路交通科技》
CAS
CSCD
北大核心
2016年第2期105-110,119,共7页
Journal of Highway and Transportation Research and Development
关键词
交通工程
交通安全评价
灰关联-组合赋权法
公路
安全等级
traffic engineering
traffic safety evaluation
grey correlation combination weighting method
highway
security level
