Calculate isolation areas in a water network
gis2web includes mincut tools to identify valves needed to isolate a water-network fault and show affected customers and meters. It supports teams assessing a planned intervention using their network inventory.
What information is needed?
Prepare a connected network inventory with pipes, valves, supply elements and the relationships needed to associate customers or meters. Review topology and valve availability with the network team. Missing connections or outdated records can change the calculated impact.
How the workflow fits together
Select the affected network elements and calculate the isolation area. Review the proposed closures, affected customers and meters, and any areas disconnected from reservoirs or pumps. Adjust valve exclusions when needed and recalculate the scenario.
Example: a valve cannot be operated
For an illustrative pipe repair, the first calculation proposes an isolation area. If a proposed valve is unavailable, exclude it and recalculate; compare the new affected area and customer list before agreeing the intervention. This is a planning example, not a reported customer outcome.
Review before field execution
Have the responsible network operator check the result against current asset conditions and operating procedures. A map calculation depends on the supplied inventory and does not establish that a valve is physically operable. For a demonstration, bring a representative network extract and a scenario with a known result.