“The Fernbrook Development is located just west of one of New Plymouth’s most
famous original streets (Carrington Street) and is accessed from the southern
end of Huatoki Street. The Fernbrook Development started in 2011 and has been a
multi-staged development with four stages of residential development having been
completed in the period between 2011 and 2014. A further stage has just been
completed to extend Fernbrook Drive southwards to provide a complete road
frontage for the Summerset Retirement Village development currently underway.”
--Bland and Jackson website
The problems faced with the design included:
Access to the site required 200m of road through challenging site terrain.
The first 160m of the access road required a reduced width carriageway - 8m
as opposed to 11m Council standard.
large fill batter was required on the left hand side of the road with a
creek running at the toe of the batter.
A large cut batter from 160m with a utility pole on top – the pole had to
remain in place
Due to the site
constraints, the road alignment design used a minimum curve radius to
minimise the fill batter dimensions and reduce the impact on the cut face.
The Territorial Authority was concerned about whether the proposed design would
work with the above constraints; hence a 3D Visualisation was necessary with the
The visualisation with ‘drive through’ option was prepared and shown to the
Council engineers. The visualisation alleviated their concerns about the effect
of the transition between the 8m to 11m carriageway.
3D perspective screen shots were printed
to assist, showing the design effect on the fill and cut batters.
The combination of ‘drive through’ and 3D visualisation assisted in gaining
Council approval for the design, and in gaining client confidence in the
company’s ability to perform the work.
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