Trace

The Trace map tool allows you to run traces in a utility network based on connectivity or traversability from designated starting points.

PREREQUISITES:

The published web map must include trace configurations and a feature service that supports the utility network. See Configure an Application to Trace a Utility Network on Esri's blog for more information.
Feature services must be secure, which allows you to log in with an ArcGIS account.
You must have an ArcGIS Utility Network user type extension to run a trace.
Network topology must be enabled and validated to show the most recent updates and edits made to the network.
An asset utility network service must be configured in Admin. See Utility Network in the Admin 3.2 Guide for more information.