We regularly consult with the sector to gain insights that help us to review and update the documents within our Standards and Guidelines Catalogue. Information on current consultations can be viewed in our public consultation hub, and further information on recently reviewed, updated or archived documents is shared with staff and suppliers in our regular Standards and Guidelines Technical Advice Note newsletter.

Publication consultation hub

Technical Advice Notes were previously published every time an individual operational policy document was ratified and updated in our standards catalogue. However, in 2024 we have updated the format into a regular newsletter that not only lists recently updated documents, but also notifies future consultations and highlights upcoming plans in our forward work programme.

An archive of our previous Technical Advice Notes is below.

To search for a specific archived policy update if you can’t see it here, use the search filters in our NZTA resources library.

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#17-03 Use of traffic speed deflectometer results

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: Highways and Network Operations

This technical advice note details the methodology to convert the traffic speed deflectometer (TSD) data to the more familiar falling weight deflectometer (FWD) output, enabling any TSD data collected to be directly compared to any historically collected FWD dataset.

#17-02 New Multi criteria analysis for transport business cases guidelines for consultation

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: Highways and Network Operations

A new document has been released for consultation with users/stakeholders to gain feedback on the Multi criteria analysis for transport business cases guidelines.  

#17-01 Asphalt depths at high stress locations for new pavements and renewals

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: Highways and Network Operations

The Austroads Guide to pavement technology part 2: pavement structural design and the associated New Zealand supplement (Transit 2007) are used to design pavements in New Zealand. These documents consider the effect of vertical stresses at the pavement surface, and the impact on the tensile strains at the bottom bound layers (asphalt or cemented materials) and compressive strains at the subgrade level.

#16-19 Business case approach online modules

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: NZ Transport Agency

Update on the status of the NZ Transport Agency’s Business case approach capability programme.

#16-18 Wire Rope Safety Barrier systems – post footing issues (updated Dec 2016)

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: Highways and Network Operations

Wire Rope Safety Barrier systems – post footing issues (updated December 2016)

#16-17 Road safety barrier accreditation scheme

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: Highways and Network Operations

Road safety barrier accreditation scheme gets green light for safety.

#16-16 Update to the Guide to assessing road- traffic noise using NZS 6806 for state highway asset improvement projects

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: Highways and Network Operations

The Guide to assessing road- traffic noise using NZS 6806 for state highway asset improvement projects has been updated.  

#16-15 Update to state highway manuals SM021, SM030 and SM031

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: Highways and Network Operations

The SM021, SM030 and SM031 State highway manuals have been updated.

#16-14 Stormwater specification for state highways

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: Highways and Network Operations

The P46 State highway stormwater specification sets out the design and construction stormwater requirements for all state highway improvement projects, however a construction specification will still be necessary for construction requirements.

#16-13 Update to preliminary instructions for maintenance and minor improvement works

Published: | Category: Technical advice note | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors | Author: Highways and Network Operations

Updates have been made to preliminary instructions for maintenance and minor improvement works.