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SUDS/LID Controls

Sustainable Urban Drainage System (SUDS) control objects in InfoWorks networks and Low Impact Development (LID) control objects in SWMM networks are specified as part of the Subcatchment data and are used to define the parameters which model the outflow from the SUDS or LID structures which are located within a subcatchment.

In InfoWorks networks, SUDS control objects can also be specified as part of Building data. New SUDS control objects for subcatchments and buildings can be created either in the SUDS control tab of the Subcatchments Grid or by clicking on the button adjacent to the SUDS controls field in the Property Sheet for the building or subcatchment.

Similarly in SWMM networks, new LID control objects can be created either in the LID control tab of the Subcatchments Grid or by clicking on the button adjacent to the LID controls field in the subcatchment Property Sheet.

The control parameters can, however, only be modified or deleted from the SUDS control or LID control tab in the Subcatchments Grid.

Once defined, the SUDS control or LID control objects can be associated with the SUDS or LID structures, located within a subcatchment, by clicking the button in the SUDS controls or LID controls field in the subcatchment properties. This displays the SUDS controls grid or Subcatchment LID controls grid, where you can select the required object from the SUDS control ID or LIDS control ID field.

Similarly, for buildings in InfoWorks networks, SUDS control objects can be associated with the SUDS structures, located within the building, by clicking the button in the SUDS controls field in the building properties. This displays the SUDS controls grid , where you can select the required object from the SUDS control ID field.

The control and performance summaries for the SUDS structures in an InfoWorks network, whose control objects are included in a simulation, can be viewed as a SWMM SUDS text report.

The performance of the LID controls in a SWMM network is reflected in the runoff calculated for each subcatchment and reported in the subcatchment results.

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