Types of network dataset source.
| Constant | Value | Description | 
|---|---|---|
| esriNSTNetworkSource | 0 | Network source whose elements are derived from an unknown source. | 
| esriNSTSystemJunction | 1 | Network source whose elements are automatically generated by the network. | 
| esriNSTJunctionFeature | 2 | Network dataset source whose junction elements are derived from point feature geometry. | 
| esriNSTEdgeFeature | 3 | Network dataset source whose edge elements are derived from line feature geometry. | 
| esriNSTTurnFeature | 4 | Network dataset source whose elements are derived from turn features. | 
| esriNSTJunction | 5 | Network source whose junction elements are derived from non-spatial object. | 
| esriNSTEdge | 6 | Network source whose edge elements are derived from non-spatial object. | 
| esriNSTAssociation | 7 | Utility network source for connectivity. Internal build purpose only. | 
| esriNSTSystemJunctionObject | 8 | Utility network non-spatial object whose elements are automatically generated by the utility network. | 
| esriNSTCircuit | 9 | Utility network source for circuits. |