Resources

This note is to advise the sector, including local road controlling authorities, the position of Waka Kotahi is that the newly released National Seismic Hazard Model (NSHM) does not immediately affect Waka Kotahi issued design standards and guidance,…

This note is to advise that the NZ Transport Agency (NZTA) Specification B/9P:2020, In-situ subgrade stabilisation, has been released for use on agreed pilot projects and is available for download from the Transport Agency’s website.

T19 specification sets out procedures for determining an optimised blend of aggregate and binders for the stabilisation of pavements.

Urban design involves the arrangement and design of buildings, public spaces, transports, systems, services, and amenities.

T19 specification sets out procedures for determining an optimised blend of aggregate and binders for the stabilisation of pavements.

This specification shall apply to the in-situ stabilisation of subgrade layers comprising either natural in situ soils, imported fill materials or a combination of both using cement, lime or a combination of these.

This specification sets out the requirements for the supply, cartage and laying of maintenance aggregate for unsealed roads, including preparation of the surface prior to laying.

This specification and guidance notes set out the requirements and maintenance standard for the repair of potholes in unsealed roads.

The purpose of this note is to advise project managers that there has been an update to the Guide to assessing air quality impacts from state highway projects.