Network

-- Definition -- A network reference that is restricted to part of a linear network element. The part is the part of the network element between fromPosition and toPosition.

-- Definition -- A network reference to a linear network element.

-- Definition -- A network reference that is restricted to a point on a linear network element. The point is the location on the network element at the position atPosition along the network.

-- Definition -- A reference to a network element.

-- Definition -- A link either in its positive or negative direction.