SWMM 5 Advanced Options

This page describes the checkbox items on the General Tab of the SWMM 5 Options dialog (Figure 1). These checkboxes apply globally during the simulation.

                                        Figure 1. General Options Tab in SWMM 5.

The checkboxes on the General Tab are:

• Allow Ponding - ponding for flooded nodes is used for those nodes with a Ponding Area greater than 0.0. Checking this option will allow excess water to collect atop nodes and be re-introduced into the system as conditions permit. In order for to actually occur at a particular node, a non-zero value for its Area attribute must be used.
• Report Control Actions - Prints a note the report file every time a control action in the control rules is active during the simulation,
• Report Input Summary - Summarizes the Subcatchment, Node and Link Data in the input data file to the SWMM 5 Report File.
• Skip Steady State Periods - computed conveyance system flows during a steady state period instead of computing a new flow routing solution. A time step is considered to be in steady state if there has been no significant change in external inflows, storage volumes, and either node water depths (for dynamic wave routing) or conduit flows (for other forms of routing).
• Transpose Water Quality Data - water quality data is transposed.  Instead of having one value per line the data is transposed and multiple EMC's and DWF's are on one line.
  
• Ignore Rainfall - do not process the precipitation time series during the simulation. The RDII flow and surface runoff will not be generated during the simulation.
• Ignore Water Quality - water quality is not simulated during the simulation. The water quality data is read but ignored by the SWMM 5 engine.
• Resize Links -  the diameter of all links that surcharge during the simulation will be increased if this checkbox is turned on AND Kinematic Wave Routing is selected as the Routing Method.   Not used  for  Dynamic Wave Routing.