基于TWW函数的公路网灰数评价方法

随着公路的扩建,各地市的公路网已初具规模并在当地的经济发展中扮演着越来越重要的角色.事实上公路网综合水平的内涵和外延是不清晰的,是一个灰色系统.根据公路网的现状及可比较的原则,将灰色系统理论应用于公路网综合水平评价.在经典灰色系统理论的基础上提出了灰数的表达方法,并引入到灰色聚类评价中,建立了基于三角白化权函数的灰数表达公式,把比较区间数大小的可能度概念拓延到灰数的比较中.在此基础上建立了完整的基于三角白化权函数的灰数评价模型.最后,通过公路网综合水平评价的实例说明了该方法的合理性和有效性.

The Grey Number Evaluation of Road Net based on Trigonometry Whitening Weight(TWW) Function

With road developing,the road net plays more and mose roles in economy development.In fact,connotation and extension of the road net is blurry,it is a grey system.Consider revising actuality of the road net and comparable principle,using grey system theory in the road net integration evaluation.This paper presents gray number based on classical grey system theory and introduces its grey clustering evaluation.Grey number formula for trigonometry whitening weight(TWW) function is set up,and introduces possibility idea of compare interval number into grey number compare.And then,an evaluation model of grey number based on TWW function is established.Last,the validity and practicability are substantiated with an example of road net evaluation.