高速公路网交通信息基础数据元语义建模

Semantics Modeling of Basic Data Element of Transportation Information for Chinese Expressway Network

针对国家标准《交通信息基础数据元》(JT/T 697)中存在的数据元语义缺失问题,以高速公路网静态设施相关数据元为例,通过交通信息基础数据元的蕴涵语义及其特征,按照搭建语义描述框架、提取数据元语义、数据元语义注解的步骤,对高速公路网交通信息基础数据元进行了语义建模,从而实现了对现有数据元标准的语义化扩展。通过实例应用表明,引入语义的数据元可以很好地表达复杂交通信息,在我国交通运输行业的信息化建设中具有很好的应用价值。

Regarding to the problems of semantics lack of data elements of transportation information in Chinese national standard Basic Data Elements of Transportation information （JT/T 697）, the implicit semantic ingredients implied in the data elements as well as their characteristics were analyzed by taking the expressway network static infrastructure-related data elements as examples. Afterwards, semantics modeling of these data elements was performed in three steps：semantics description framework construction, semantics ingredients extraction, and semantics notation of data elements. By this way, the basic data elements from Standard JT/T 697 were enriched with data semantics. The results of an application scenario conducted in the article show that semantics-enriched data elements are well expressive for complex transportation information and very feasible in the informatization process of Chinese transportation industry.