| 名称 | ifc railway signal device |
| 领域 | IFCRAIL |
| URL | http://cbims.org.cn/allscope/IFCRAIL-IfcRailwaySignalDevice |
| 分类编码 | IfcRailwaySignalDevice |
| 父类 | ifc rootifc railway elementifc productifc civil elementifc objectifc elementifc object definition |
| 子类 | ifc railway clearance postifc railway signal |
| 等价类 |