Good Morning!
I am attempting to understand how sewersheds work in the Utility Network. When I assign a subnetwork controller (directional manhole channel) to the upstream terminal, and assign the from/to terminal on the lines for that feature (customer does not want to use the pipe connections/associations to manage terminals), the entire collections system is designated as a sewershed.
Furthermore, when I do a shortest path trace using both the upstream and downstream terminal for the manhole channel, the results are the same. However, when I do an upstream trace doing digitized direction- I get what I would expect. Why would the behavior for an upstream terminal differ from an upstream digitized direction trace? Should I also be setting terminals on manholes further upstream? I am just trying to understand what is causing the entire network to be picked up as upstream from a given manhole- the shortest path trace seems to always trace downstream regardless of what terminal I pick for the starting point.
I will also mention the collections system tier has not been set up yet- is that a requirement for the network to be able to properly delineate a sewershed? Will also note that I do not get this behavior on all manholes- any assistance or pointers in the right direction is appreciated.