Node properties can be input in the Misc tab or Spread Input. Users have to select “Node” before inputting the node properties.
Misc #
Users can input the node properties in the Misc tab by selecting the particular node.
Spread Input #
It is easier for users to input the node properties by clicking the “Spread Input”.
Properties of Node #
Under Spread Input or Misc, users can define the manhole properties such as ground level, depth below invert, manhole type, and many more.
Mark #
Users can define the prefixes or markings for each of the nodes.
The default prefix will be the sequence number such as 1,2,3… Users can also customize the prefixes for the nodes following the guideline, Customizing Mark for Nodes and Edges in Utility Modules available on our website.
Location #
This represents the X and Y coordinates of the node on the Input Screen. The coordinates will be displayed automatically by the software.
Ground Level #
The ground level of nodes, will either be based on the survey data imported or the platform level designed in which the node is placed on the Input Screen.
Users have the option to User Defined the level or let the software auto-detect the level for each of the nodes.
Options | Remarks |
Yes | We are opting to manually define the ground level of the nodes |
No | We are letting software detect the level for each of the nodes. If changes are made to the survey data or platform level designed, the nodes' ground level will be automatically updated by software. |
Depth Below Invert Settings #
For the manhole depth, users can opt between Level and Fixed Depth.
Options | Remarks |
Fixed Depth (Users need to set Iterate to YES) | Users can input an absolute depth for each of the manholes. |
Level | The extra depth in relatives to the lowest Invert Level (IL) for a particular manhole. |
Further explanation on each of the Depth Below Invert Settings and how it affects your design can be referred to the article, Depth Below Invert, available on our website.
Rotation #
Users can rotate the node in degrees for both the Key Plan and 3D View representation of the nodes. It can be set to be iterated by software or manually input by users.
**Note: The rotation will be easily seen if the node shape is rectangle
Manhole #
Manhole Type #
Starting from MiTS 3.0 versions, users can define the Manhole Shape and Type under the Spread Input. By default, two options are available for users; “Circle, Cylinder” or “Rectangle, Concrete Rect“.
How to add other manhole types? #
Users can add more types to the circle or rectangle shapes manhole under the parameters.
Options > Project Settings > Sewerage > Sump > Category > Input the category > Press ENTER > Click OK
Then to add these categories to the options for Rectangle or Circle,
Options > Project Settings > Sewerage > Rectangle or Circle > Click on the spanner icon > Add the category from the Master List to the Part List
Profile #
Users can manually define the parameter of the manhole type or let the software iterate the suitable manhole sizing for the sewerage design.
Iterate is set to YES #
Following Malaysian Sewerage Industry Guidelines (MSIG) #
Software will iterate by opting for the Minimum Manhole diameter based on the depth and largest pipe such as in Table 2.6 Minimum Manhole Diameter (Section 2.2, page 51 here)
The same table is also available in MiTS.
Options > Project Settings > Sewerage > Design > Manhole > Manhole Size Selection: MSIG
Limitation:
The table provided in MiTS is ONLY for the manhole diameter when the depth is less than 1.5m.
If users are required to design for a manhole depth that is more than or equal to 1.5m, the Manhole diameter needs to be changed manually following the value stated in the guidelines.
Features of the table:
Features | Remark |
Interpolation | Clamp Up: Interpolate to the higher value of the manhole diameter Middle: Interpolate to the nearest value of the manhole Clamp Down: Interpolate to the smaller value of the manhole diameter |
Extrapolation | Maintain: The software will use the largest manhole diameter defined in the table if the pipe diameters is larger than 900mm Extrapolate: |
Manual #
Users can have the manhole sizing to a follow a specific diameter other than the values defined in MSIG with the Manual options available.
**This also refers to when users want to add more manhole diameter to the table
Options > Project Settings > Sewerage > Design > Manhole > Manhole Size Selection: Manual
Iterate is set to NO #
Users can define manhole diameter directly in the Spread Input or opt for parameters-defined dimensions by clicking the ‘…’ button.
Circle Manhole (Direct Input) #
Rectangle Manhole (Direct Input) #
Circle Manhole (From Project Settings) #
Options > Project settings > Sewerage > Sump > Circle
Rectangle Manhole (From Project Settings) #
Options > Project Settings > Sewerage > Sump > Rectangle
Cover Top #
Top cover of the node, available for both Rectangle and Circle shapes.
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You can also contact me at soonhui@mes100.com
