General Information
Location = Kuching, Sarawak
2P24 = 100
Type of Pre-development = Park Lawns and Meadows
Type of Post-development = Semi D houses (low density)
Area = 547 m²
Impervious = 43.14 % from total area
Pervious = 56.86 % from total area
Time constant, tc = 40 minutes
Time constant, tcs = 35 minutes
OSD design = Above-ground
Step 1: Start MSMAware. Select ‘One Site Detention’ tab.
Step 2:- Select MSMA1 and select “General” tab.
Step 3:-Enter the project time value for ‘tc’ and ‘tcs. Make sure the time is in ‘minutes’ units.
Step 4: Choose the design ARI for project storage.
Step 5: Enter the ‘impervious area’ and ‘pervious area’ for ‘pre’ and ‘post’ data. Make sure that the area is in ‘meter squared’ unit.
Step 6: Select the earth cover categories for ‘Pre’ and ‘Post’ development. If the C value is fixed, then choose true. Select ‘False’ if the C value is not fix value.
Step 7: Select the general type for the storage development.
Step 8: Select the type for ‘Town’ and ‘Location’ of the site project. Insert the value for 2P24.
For step 9 until 15 : please follow the steps shown in case study 1 for Kuala Lumpur
Back : Case Study 1 Next : Manual Calculation
