This document provides instructions for using a SWMM Decision Support System (DSS) tool. It outlines 10 steps: 1) select an SWMM input file, 2) select a subcatchment and LID type for analysis, 3) adjust LID design parameters for sensitivity analysis, 4) view sensitivity analysis results, 5) develop all feasible LID design scenarios, 6) view scenario results in graphs, 7) view top scenarios and download files, 8) select scenario parameters for next steps, 9) adjust LID planning parameters, and 10) view hydrologic results and download top files. The tool allows loading and modifying previously saved analyses.

2. u Starting page of the program
• Enter the allocated web adress from a chrome website
• Click ‘Start’ to create a new file
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3. u Step 1 – Select SWMM input file
• Click ‘Search’ to load SWMM input file
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4. u Step 1 – Select SWMM input file
• Select an input file (Example4.inp) and click open
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5. u Step 1 – Select SWMM input file
• Click ‘Continue’ on the bottom to go to the next step
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6. u Step 2 – Select the study subcatchment & the LID type
• Click the scroll button on the right to select the study subcatchment &
LID type
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7. u Step 2 – Select the study subcatchment & the LID type
• After selecting the options, click ‘Continue’ to go to the next step
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8. u Step 3 – Simple sensitivity analysis of LID design parameters
• This page shows all parameters for the selected LID type
• All parameters refer to the SWMM5.1 LID Control
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9. u Step 3 – Simple sensitivity analysis of LID design parameters
• By clicking the ‘edit (pen shape)’, you can change the parameter value
• Minimum (start) and maximum (end) values can be set
• Numbers of parameter value can be adjusted by changing ‘count’
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10. u Step 3 – Simple sensitivity analysis of LID design parameters
• A description and figure of the parameter will show up when you click the
parameter name
(you can use it when you need more information of the selected parameter)
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11. u Step 4 – Result of simple sensitivity analysis
• This page shows which parameter relates to different results
• A graph and table is shown for a comfortable view
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12. u Step 4 – Result of simple sensitivity analysis
• Click ‘Thickness (or another parameter)’ to see the related analysis result
• You can see the changed graph and table
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13. u Step 4 – Result of simple sensitivity analysis
• You can check the minimum and maximum values of the target hydrologic
component from the table
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14. u Step 4 – Result of simple sensitivity analysis
• You can check the minimum/maximum values and the change of the hydrologic
component from the graph
• You can also delete unchanging graphs by clicking the ‘result options’ on the right
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15. u Step 4 – Result of simple sensitivity analysis
• By checking the influential parameters, select the ‘check box’ for the parameters which
will be used at the next step
• Click ‘Continue’ to go to the next step
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16. u Step 5 – Developing all feasible LID design scenarios
• All parameters which you have selected at the ‘step 4 (check box)’ will show up
• Default values of minimum (start) / maximum (end) and inter-values (count) will show up
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17. u Step 5 – Developing all feasible LID design scenarios
• You can change the value by clicking ‘edit’
• Be aware of the count (if not, it will take a long time to calculate the result)
(The total simulated scenario number = 2*2*2*2)
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18. u Step 5 – Developing all feasible LID design scenarios
• We can change all values to develop all available LID design scenarios
• Insert values as below and click ‘continue’ to go to the next step
(The total simulated number = 3*3*2*5 = 90)
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19. u Step 6 – Graph of relative frequency
• A relative frequency graph of each hydrologic component will appear for all selected
scenarios
• The high-lighted box shows how many scenarios were considered and simulated
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20. u Step 6 – Graph of relative frequency
• Select any hydrologic component which you want to check
• Ex) select ‘TotalRunoff’
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21. u Step 6 – Graph of relative frequency
• The value and percentage shows when you put the cursor at a point
• Click ‘Continue’ to go to the next step
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22. u Step 7 – Result of the LID design parameter scenarios
• The following will show up to select a hydrologic component
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23. u Step 7 – Result of the LID design parameter scenarios
• Click the scroll button to choose the hydrologic component which you want
to see (or check)
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24. u Step 7 – Result of the LID design parameter scenarios
• Insert a number which you want to see (or check)
• The number you insert refers to the best LID design scenarios in priority
• After you insert a number, the following table will automatically appear
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25. u Step 7 – Result of the LID design parameter scenarios
• You can change the number of scenarios
• the following table will appear
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26. u Step 7 – Result of the LID design parameter scenarios
• You can download SWMM input and output files of high performance scenarios
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27. u Step 7 – Result of the LID design parameter scenarios
• When you click ‘Download’ for the input data, downloaded input data can be found
in the document folder
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28. u Step 7 – Result of the LID design parameter scenarios
• When you click ‘Download’ for the output data, downloaded output data can be
found in the document folder
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29. u Step 8 – Selection of LID design parameters
• The following shows the selected scenario results of the previous step
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30. u Step 8 – Selection of LID design parameters
• Choose one of the scenarios which will be used for the next step
• Click ‘Continue’ to go to the next step
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31. u Step 9 – LID planning scenarios
• The following shows SWMM5.1 ‘LID Usage’ parameters which are related to planning
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32. u Step 9 – LID planning scenarios
• You can change the values by clicking the edit button
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33. u Step 9 – LID planning scenarios
• A description of the parameter shows up when you click the name of the parameter
(you can use it when you need more information of the parameter)
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34. u Step 9 – LID planning scenarios
• Insert values as below and click ‘continue’ to go to the next step
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35. u Step 10 – Results of hydrology
• The following shows the results of hydrology
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36. u Step 10 – Results of hydrology
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37. u Step 10 – Results of hydrology
• Choose which result you want to see (or check) by clicking the scroll button on the
‘hydrologic components’
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38. u Step 10 – Results of hydrology
• Insert a number which you want to see (or check)
• The number you insert refers to the best hydrological scenarios in priority
• After you insert a number, a table will automatically appear
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39. u Step 10 – Results of hydrology
• The table shows 10 scenarios each on the page
• If the number you selected is high, other results can be seen by clicking the page
number below the table
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40. u Step 10 – Results of hydrology
• You can download SWMM input and output files of high performance
scenarios
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41. u Step 10 – Results of hydrology
• You can also see (or check) the distribution of each results
• A figure is shown to support the type of LID you have chosen
• We are working on a brief summary report option
(a brief summary file which contains all of the procedure done in this program will be reported
as an excel or text file)
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42. u Step 10 – Results of hydrology
• Click ‘Save’ button to save the whole procedure of the SWMM DSS
• You can save in any step
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43. u Step 10 – Results of hydrology
• Click ‘Save’ button to save the whole procedure of the SWMM DSS
• You can save in any step
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44. u Starting page of the program
• Click the scroll button of the ‘Load existing file’ to load a saved data
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45. u Loaded step 1
• The saved data is loaded
• Shows the 1st step of the procedure
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46. u Loaded step 5
• Click the number of the step 5, then the saved page of step 5 will appear
• click any number of step and it will bring the saved page
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47. u Loaded step 8
• Click the number of the step 8, then the saved page of step 8 will appear
• To do a different analysis, case: LID planning fixed, change in LID design
• Click a scenario which is different to the previous one
(only lowered the ‘Thickness’ from 9 to 6)
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48. u Loaded step 8
• Download the ‘Input file’ of SWMM5.1
• Click ‘Continue’ to go to the next step
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49. u Loaded step 9
• Same as ‘Step 9’
• Click ‘Continue’ to go to the next step
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50. u Loaded step 10
• Results of hydrology is shown
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51. u Loaded step 10
• You can download the highly performed scenario input / output data and use it on
SWMM5.1
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