LION_Node

Nodes represent the locations of any combination or intesection of linear features in New York City (a topological junction). A node occurs wherever two or more linear features cross regardless of whether a physical intersection occurs at that point.节点（Node）指代纽约市境内任意线状要素组合或交汇点的位置，此类位置属于拓扑交汇点（topological junction）。当两条或更多线状要素相交时，无论该位置是否存在物理交汇，均会生成一个节点。