ERA - Vocabulary/Ontology

ERA vocabulary is an ontology defined by the European Union Agency for Railways (ERA) to describe the concepts and relationships related to the European railway infrastructure and the vehicles authorized to operate over it. The infrastructure portion contains the Implementation layer that represents the railway network as a number of operational points (OPs) connected with sections of line (SoLs), describing the following structural subsystems of the Union rail system: the infrastructure subsystem, the energy subsystem, the trackside control-command and signalling subsystem. It also contains the Topological layer where the network topological concepts are defined. The Railway Vehicle types portion contains the route compatibility check-related technical characteristics of vehicle types. The author of ERA vocabulary is ERA and it is published by the Publications Office of the European Union.ERA词汇表是由欧盟铁路署（European Union Agency for Railways，ERA）定义的本体（ontology），用于描述与欧洲铁路基础设施及获准在该网络上运营的车辆相关的概念与关联关系。其基础设施板块包含实施层（Implementation layer），该层将铁路网络表征为若干运营点（Operational Points，OPs）与线路段（Sections of Line，SoLs）相互连接的结构，并阐述了欧盟铁路系统的三类结构性子系统：基础设施子系统、能源子系统、轨旁控制指挥与信号子系统；该板块同时设有拓扑层（Topological layer），用于定义网络拓扑相关概念。铁路车辆类型板块则涵盖了与线路适配性检查相关的车辆类型技术特征。 ERA词汇表的编制方为欧盟铁路署（ERA），由欧盟出版物办公室（Publications Office of the European Union）发布。