It would be useful to have a central granular conveyance trench beneath permeable paving to avoid the need for overly deep sub base beneath the road / drive.
Thank you for the suggestion and thanks to those who voted/commented.
This is already possible in InfoDrainage if you use a no-delay connection to connect the water that gets to the base to an infiltration trench structure (see attached screenshot).
Thank you for the suggestion and thanks to those who voted/commented.
This is already possible in InfoDrainage if you use a no-delay connection to connect the water that gets to the base to an infiltration trench structure (see attached screenshot).