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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.
With the expansion of highways, the road network in all localities has begun to take shape and plays an increasingly important role in the development of the local economy.In fact, the connotation and extension of the comprehensive level of the highway network is not clear, and is a gray system According to the current situation of highway network and the principle of comparison, the gray system theory is applied to the comprehensive evaluation of highway network.An expression method of gray number is proposed based on the classical gray system theory and introduced into the gray clustering evaluation Based on the formula of the gray number of trigonometry whitening weight function, the concept of the probability of comparing the number of intervals is extended to the comparison of gray numbers.A complete gray number evaluation model based on trigonometric whitening weight function is established. The example of comprehensive evaluation of highway network shows the rationality and effectiveness of this method.