Closed Drainage

Use this function to define the closed drainage. Closed drainage can now be defined in two ways:

Run the function from the following location of the floating window Road Model:

MOUS_ICO Toolbar: Not available from Toolbar

MOUS_ICO Menu: Data > Closed Drainage

The dialog Closed Drainage will pop up.

From WS Model

Automatically generates the geometry of the closed drainage by selecting the WS model(s).

Parametric Method

Manually define the cross-sections of the closed drainage using the tabs First, Second, and Third.


Start and end chainages must be defined to determine the length of the ditch (minimum of two rows in the left table).


In the cross-section, the break points in the drainage ditch are described using the distance from the centerline.


The extent of the longitudinal direction is defined using a start and end chainage. In association with the finish profile, define a code to indicate that the sub-section will end here.

Points in the ditch cross-section

Break points in the ditch cross-section are defined by the distance from the centerline and the elevation (absolute or relative to the centerline).

When defining ditches, Novapoint Road Design will find the cutting point between the ditch walls and either the roadbed or the road top surface.

The lowest cutting point of these will be selected.

If the ditch is placed outside the road area, the ditch will be terminated where the ditch wall cuts the terrain's top surface. If the ditch is described in such a way that the first or last ditch wall will theoretically not provide a cutting point, the wall(s) will be extended to the cutting.


Use this button to execute the function.

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