C1,C2,C3 Growth Cells
Waipa District Council approved a new structure plan covering three new urban growth areas (C1 and C2/C3) within the township of Cambridge. This structure plan provides a proposed layout for the urban development of these areas along with general requirements to meet community, infrastructure and design outcomes for any future subdivisions within the growth cells.
The transportation network developed as part of the structure planning process identified a number of key road links and intersections to be delivered in this area. One of the key elements within the network is a new intersection on Cambridge Road between the C2 and C3 growth cells (henceforth referred to as the ‘C2/C3/Cambridge Road intersection’).
Council completed an assessment and preliminary design work on this intersection and identified, as most suitable, a signalised intersection with approach platforms / ramps to control speed or a roundabout with grade separation for pedestrians and cyclists.
This was then refined using a Multi Criteria Assessment (MCA) with a signalised intersection the preferred option.
3MS are the developer of a significant portion of the C2 cell north of the intersection, and they engaged a consultant, Stantec, to examine intersection options focusing on roundabout forms with at-grade pedestrian and cyclists crossings. 3MS prefer a roundabout and Stantec agree.
Council engaged consultants BBO to review and refine traffic projections, complete topographic survey, pavement and geotechnical investigations and then detail design once an intersection form has been settled on. Intersection construction is required to be coordinated with stormwater and north south collector road design and construction.
An independent peer review of the assessments completed to date has been commissioned to provide advice on suitable intersection forms taking account of roading hierarchy, traffic mix and volume, pedestrian and cyclist volumes. This review assumes a ‘clean sheet’ which is not limited to options already considered, but is cognisant of Council’s objectives for transportation.
The peer review report will be made available on this page once completed.