基于物元模型的高速公路交通安全评价体系

为了真实反映高速公路安全的实际情况，基于科学性、可行性、实际性、可比性和定性与定量相结合原则，筛选高速公路交通安全的相关因素，建立高速公路交通安全评价体系。运用物元理论，建立了高速公路交通安全评价的物元模型，该模型以定量数值表示道路交通安全状况属于某等级的程度大小；其中可拓集合关联函数的应用使得道路交通安全的多指标评定更为精细化。江西某高速公路的该模型应用实例表明：该物元模型可较好地给出交通安全等级评定结果，并且能够较完整地反映高速公路交通安全的综合水平。

Traffic safety assessment for expressway based on matter element model

Based on the scientific,feasible,practical,comparable factors and in combination of qualitative and quantitative analysis,the paper selects the related factors for traffic safety assessment of expressway,and establishes the matter element model for traffic safety assessment of expressway.This model can quantitatively show the degree of traffic safety condition belongs to one grade,hence,the application of related function of exploitable sets makes the multi-guideline evaluation more elaborate.The example applied on the expressway in Jiangxi Province shows that the model can give better evaluation and more perfectly reflect the traffic safety assessment of expressway.