A 200+ lot residential subdivision in “Wanaka – one of the most
beautiful, breathtaking, towns that New Zealand’s South Island has to offer.”
(Source: Hikuwai website)
The magnitude of the project was the main challenge, but the team at Southern
Land was confident they could find a solution using the right tools.
All aspects of the subdivision process were calculated, designed and drafted in
12d Model software, starting with the scheme plan and finishing with IFC
Using 12d Model’s Multipage Plots functionality to manage drawing sets, the team
determined that using 12d Model as a ‘One Stop Shop’ for all aspects of the
subdivision process would be the best decision for this project:
1. Scheme Plan
• The Initial Boundary Data
was first calculated with the Traverse spreadsheet
• Lot creation numbering and labelling was achieved through use of the Estate
• Xtra_User_drafting tools were
used for dimensioning
• The Insert Table
From .csv feature was used for Memorandum of easements tables
• A four-page scheme plan set was created using Multipage Plots, with Title
Block information read in from a drawing register.
Throughout the process, there were four revisions required. Revision changes
were lightning fast as each step of the process was recorded through 12d Model
The process of adding some additional lots into the first stage of the project
consisted of adding lot polygons, numbering them, updating the drawing register,
and running the labelling and plotting chain.
2. Engineering Design
From the Scheme Plan
12d Model project, the relevant models were shared out so that any lot numbering
changes happening on the Scheme Plan were able to follow through to the
Engineering drawing set.
A number of Design Chains were set up to record each step of the design process
on the way through so that any changes made in the design could be easily
updated through all aspects of both the design and surface Models, and updated
in each relevant drawing.
For example, if a vertical alignment of a road was changed, the roading chain
would resolve all super alignments to update any computators and re-calculate
the road and earthworks design strings from the MTFs. The surfaces chain could
then be run to re-calculates surfaces, and update cut-to-fill depth plans and
plots to model design contours. From there, the drainage chain would regrade
drainage strings and plots to model in both plan and long sections.
This process means that from the beginning of a project, the team could first
set up Multipage Plots, and then add in the design elements required for
At all stages of the design process, Southern Land could quickly and simply
print a drawing set (even if the design was not complete) for discussion and
collaboration with clients/engineers and contractors. Any design changes made
following those discussions/collaboration with other professionals could then be
easily and promptly updated and, within minutes, be shown on a plan face.
On top of this, when the time came for construction, Southern Land could
guarantee that the design information shown on the approved set of plans was
exactly what they had out in the field with them to set out, not something drawn
in a drafting package elsewhere.
Southern Land’s Grant Wandel said, “Multipage Plots were a real game changer
for me in the way I am able to plot large sets of .pdfs straight from 12d Model
with small file sizes.”
He was similarly impressed with the way in which revision changes could be made
with lightning-quick turnarounds.
Other benefits of using 12d Model on this project included:
• Drawing Titles and Revision being controlled in one place (drawing register)
• Dynamic CAD drafting functions - when changing the shape of a lot, the area
and dimensions change with it
Drawings and Notes and legends written in/out to the 12da Library for future use
in other drawing sets
• 12d Synergy
attributes fed straight to the plan face
12d Model’s Multipage Plots functionality offered the ability to design a
subdivision from concept to completion in an efficient and dynamic manner. This
resulted in an accurate, complex, robust, attractive, and timely design that
easily surpassed the increasingly demanding expectations from clients and local
Being able to work wholly within one software package, with no external products
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