Tier Definition

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Navigation: Utility Network > Subnetwork

Tier Definition

The tier definitions are applied to the served area. Additionally, a distinction is made between whether it is a transmission or distribution network. A transmission network typically consists of long, high-level pipelines that transport water from one point (source) to a transfer structure. It is important to note that these may also be so-called gravity-fed pipelines.

The functional distinction of the water pipelines is ensured through an additional attribute, AssetEntity. Further information on the function of the water pipeline can be found.

TierGroup	Tier(s)	Description
WAT_Transmission	WAT_TransmissionSystemZone	The transmission network is typically under pressure. In some cases, it may also consist of gravity-fed pipelines. The area corresponds to the part of the network served by the same water sources and production facilities.
WAT_Transmission	WAT_TransmissionPressureZone	The transmission network is typically under pressure. In some cases, it may also consist of gravity-fed pipelines. The area corresponds to the part of the network that belongs to the same pressure zone in the water network system. Multiple pressure zones can be supplied by the same water production facilities.
WAT_Distribution	WAT_DistributionSystemZone	Distribution network, typically located in residential areas and divided into pressure zones. The area corresponds to the part of the network supplied by the same water production facilities.
WAT_Distribution	WAT_DistributionPressureZone	Distribution network, typically located in residential areas and divided into pressure zones. The area corresponds to the part of the network that belongs to the same pressure zone in the water network system. Multiple pressure zones can be supplied by the same water production facilities.
WAT_Measurement	WAT_MeasurementZone	A District Metering Area (DMA) is a hydraulically discrete area within a zone of the distribution network. It is used for monitoring system flow and pressure. It is also employed for prioritizing leakage control activities. A District Metering Area can be isolated from others in two ways – either by using shut-off valves at its boundary or by cutting off the pipes that connect it to other areas.

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