Breaking Changes in MiTS 3

‘Project Parameters’ is Now Called ‘Project Settings’ in MiTS 3 #

As part of ongoing improvements in MiTS 3, the section previously known as Project Parameters in MiTS 2 has been renamed to Project Settings.

‘Program Settings’ is Now Called ‘Machine Settings’ in MiTS 3 #

In MiTS 3, the section previously known as ‘Program Settings’ has been renamed to ‘Machine Settings’ for better clarity. Settings remain specific to the user’s device.

CCF Parameter Setting in MiTS 2 vs MiTS 3 #

In MiTS 3, the CCF inclusion is by default set to “Include”. If a user has set CCF values to “NotInclude” in MiTS 2, the parameter setting from MiTS 2 will not be preserved when the user opens the same project file in MiTS 3. Hence, there will be changes in analysis under Storm Water Module and MSMA Module, since CCF Inclusion are set by default to be true in MiTS 3. User can change the CCF Inclusion under Project Settings in MiTS 3.

Options > Project Settings > Storm Design > Design Rainfall > Malaysia > Rainfall Intensity > CCF inclusion > “NotInclude”

MiTS 3 Migrates Custom IDF Coefficients from MiTS 2 #

MiTS 3 keeps the published MSMA2 rain-gauge coefficients read-only. If a project contains a rain gauge whose coefficients were edited in MiTS 2, MiTS 3 migrates those values to User λ, κ, θ, η coefficients, with one row per ARI. The custom coefficients and CCF values are retained, and the former gauge name is kept as a record of their origin. An unchanged published gauge remains a gauge source. Add a Location note to identify where migrated or other user coefficients apply. See Choosing the IDF Source for the available sources and settings.

The published reference data are:

1. IDF Coefficients: MSMA 2nd Edition
2. CCF Values (Peninsular Malaysia): Hydrological Procedure 1 (Revised and Updated 2015)
3. CCF Values (Sabah and Sarawak): Hydrological Procedure 26 – Estimation of Design Rainstorm in Sabah and Sarawak (Revised and Updated 2018)

To enter a new custom set, choose User λ, κ, θ, η coefficients under IDF source and enter the values there. Published rain-gauge rows remain read-only.

Options > Project Settings > Storm Design > Design Rainfall > Malaysia > Rainfall Intensity > IDF source > User λ, κ, θ, η coefficients, then enter the values.

Or;

Properties Tab > Rainfall Intensity > IDF Source > User λ, κ, θ, η coefficients, then click the Details “…” button to open the Rainfall Intensity page and edit the coefficients.

Verge Slope Now Independent in MiTS 3 #

MiTS 3 verge slope calculation is similar in MiTS 2 for determining the verge slope ratio. It will follow the value you set in the Properties tab in the RHS panel or the Project Settings. Note that the method “the verge slope is dependent on the shoulder” is removed. Therefore, Verge Slope is now always independent of any road width entities, (e.g.: carriageway, shoulder, etc). You may refer blogppost on Calculation of Verge Slope Ratio for further understanding.

Drainage sync in HydroCalc (MSMA) Module is now removed in MiTS 3 #

With the implementation of Analysis Mode in StormSync Module, the stormwater routing of the drainage model can now be performed directly inside the StormSync, The inflow-outflow hydrographs can be generated without having a need to sync the drainage model in MSMA module. 

Refer below for more information on StormSync Analysis Mode

1. Storm Water Design and Analysis Mode
2. Improvement of Stormwater Module in MiTS 3 over MSMA Module
3. Benchmark of Result Between Stormwater Module and Detention Pond in MSMA Module

V-Drain is now always independent of berm in MiTS 3 #

Say if you wanted to revise an old slope design project (that was created using an older version of MiTS 2) in MiTS 3, you might notice V-Drain in MiTS 3 is always independent of berm, unlike old version of MITS 2, where V-Drain can be made included in the berm.

You will need to manually recreate V-Drain in MiTS 3. Note that this only affects very old project files, which are created in older versions of MiTS 2, so newer files created directly in MiTS 3 or imported from the latest MiTS 2 version should be fine.

In MiTS 3, you can configure your slope entities (e.g.: slope, berm and berm drain) to your preferences and create multiple slope templates to align with your design requirements. You can refer to Slope Template for further understanding.

Invert Level Settings in MiTS 3 for Utility Modules #

When you are upgrading from an old version of MiTS 2, the Invert Level settings from the older version may not be carried over automatically to MiTS 3, particularly for the following modules:

1. Drainage Module
2. Sewerage Module
3. Water Reticulation Module

Therefore, to ensure accurate modelling and analysis, you may need to recheck and reassign the invert level settings manually when you open the old project file in MiTS 3.