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Unsealed Roads Network Maintenance and Renewal Modelling Tool

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Up to 40% of the roading networks in NZ are gravel, and 80% of our primary industry economic trips start on these roads.


Unsealed roads play an important part of the New Zealand Road network and managing ratepayer expectations of their maintenance is paramount. 

Our award-winning Unsealed Road Model has been developed to provide evidence for your business asset management plan in unsealed roads and optimise your blading and gravel replacement programme. ​​


Key benefits of our Unsealed Roads Tool:


  • Understand the performance of your sealed road networks.

  • Enhance your blading and gravel replacement and maintenance programme with relevant, evidence-based outcomes.​

  • Harnesses the invaluable data that comes from customer feedback/complaints.

  • Robust support for decision-making.

  • Obtain evidence and narratives for your business asset management plans so you can confidently justify your investment needs to stakeholders.

Data condition

We understand that no council has perfect data - the model can run on existing data and in the process, provide strategic guidance on where to focus future data collection and data improvements. Our experienced team can work through this with you. 

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Find out what data is required for this model in our Unsealed Roads Data Sheet.

Learn more

  • Watch Dr Theuns Henning's webinar below for more information on the tool and its benefits.

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