Roading design covers the geometry, structure, and drainage of roads within a development - from private access ways serving a handful of lots to arterial roads vesting in council. It includes horizontal and vertical alignment design, pavement structure design, intersection geometry, and the preparation of road drawings for engineering approval and construction.
Roads must meet council standards for geometry, grade, sight distance, and pavement depth - and those standards are non-negotiable for vesting. Designs that fall short are rejected at engineering approval stage, causing delays and redesign costs. Roads built to underspecified pavements fail early, creating defect liability that remains with the developer. Getting the design right from the start avoids both problems - and a road that passes first time keeps your development programme on track.
We design roads to both New Zealand and local authority standards, while also considering wider guidance as applcaible such as the New Zealand Transport Agency's geometric design guidelines. We draw on geotechnical investigation data to specify appropriate pavement depths and materials. We prepare long-sections, cross-sections, and plan layouts suited to construction - not just compliance checking. For intersections with the public road network, we coordinate with the relevant transport authority and manage any required traffic safety assessments. There are no one-size-fits-all pavement designs here: specifications reflect what the ground data says, so the road performs as designed for its full-service life.




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