Transport hubs

Inventory of the main intersection of the type: Roundabout, junction (intersection of more than 3 junctions) or intersection (intersection of more than 3 junctions) on the maintenance axes. The type is completed if it is a roadway change, a motorway connection or an obstacle to the cantonal exceptional transport routes.本数据集为道路维护轴线上的主要交叉口清单，涵盖类型包括环岛（Roundabout）、多岔交汇路口（交汇道路数量多于3条）。当该交叉口存在车道变更、高速公路衔接节点或对州级特殊运输路线（cantonal exceptional transport routes）构成阻碍时，需完善其类型标注信息。