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The Transport Services Technical advice note (TAN) is a formal memo which keeps all relevant people up to date and aware of any new releases, interim acceptances, changes and updates to technical information, specifications, legislation, etc in relation to highway projects.

This is being used in place of the email memos you may have been receiving from the technical teams across the Transport Services group.

The Technical advice note series should be seen as the one source of truth associated with changes to our technical requirements.

It is sent to registered users, both internal and external to the NZ Transport Agency.

Subscribe to the Technical advice note - the one source of truth for highways information.

Search for TANs posted in 2019

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For further information contact hip.feedback@nzta.govt.nz.

#20-21 Update of Protective coatings for steel bridges and release of new specifications for coating steel structures and anti-graffiti coatings

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

This note is to advise suppliers, specifiers and applicators for structural steelwork and protective coatings that the following are now available for commonly used coatings systems.

#20-18 Sustainability Rating Scheme Policy – update 2020

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Sustainability and Resource Efficiency team, Waka Kotahi NZ Transport Agency

This note is to advise that the Sustainability Rating Scheme Policy for Waka Kotahi NZ Transport Agency has been updated to be used on all future projects meeting the Rating Scheme Policy requirements.

#20-19 Contract procedures manual (SM021)

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Procurement team, Waka Kotahi NZ Transport Agency

This note is to advise that the third edition, amendment 2 of the Waka Kotahi NZ Transport Agency (Waka Kotahi) Contract procedures manual (SM021), has been released to be used for all procurement and is available for download from the Waka Kotahi website.

#20-20 Tactile indicator installation note

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

The purpose of this technical note is to provide some high-level recommended practice to contractors carrying out the installation of tactile pavers as requested in an industry survey in 2018.  This is a supplementary publication aimed at roading and utility contractors to provide a simple guide for reinstating tactile pavers affected by their works.

#20-16 New specifications for dense graded asphalt concrete and stone mastic asphalt

Published: | Category: Technical advice note | Audience: Road traffic engineers & consultants | Author: Waka Kotahi NZ Transport Agency

This note advises that Waka Kotahi NZ Transport Agency specification M10: 2020, Specification for dense grade asphaltic concrete (AC) and specification M27: 2020 Specification for stone mastic asphalt (SMA) have been released for general use and are available for download.

#20-17 Procurement - Invoice payment terms for all Waka Kotahi suppliers

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Procurement team, Waka Kotahi NZ Transport Agency

This note is to advise that there is an instruction to staff to help to facilitate a quick turn-around on invoices to help businesses meet their costs.   This note shall apply from the date of publication.   The aim is not to over-rule the required processes but to bolster the turn-around on invoices once they are confirmed.

#20-15 Use of timber poles for ground improvement

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Geotechnical team, Waka Kotahi NZ Transport Agency

Withdrawn. Superseded by publication of amendment 4 to the Bridge manual 3rd edition. This note is to advise that there is an issue with the use of timber poles for ground improvement where used in conjunction with a structure and outlines interim requirements pending the next Bridge manual update.  This note shall apply from the date of publication.

#20-14 Contract Procedures Manual (SM021)

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Procurement team, Waka Kotahi NZ Transport Agency

This note is to advise that the third edition, amendment 1 of the Waka Kotahi NZ Transport Agency manual SM021, Contract Procedures Manual, has been released.  The third edition is to be used for all future procurement of infrastructure and non-infrastructure goods/services/works and is available for download from the Waka Kotahi website.  The changes are mainly internal process changes, all-of-Government and sector requirements and editorial changes. This new version of the Manual applies from the date of this notice.

#20-13 State Highway Construction Contract Proforma Manual (SM031) Appendix D Issue 14 and State Highway Maintenance Contract Proforma Manual (SMO32) Appendix B Issue 11

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Procurement team, Waka Kotahi NZ Transport Agency

This note is to advise that a new Alliance contract model proforma has been released to be used for all future procurement where an Alliance model will be used.  The updated Alliance contract model appears in Appendix D to issue 14 of the Waka Kotahi NZ Transport Agency State highway construction contract proforma manual (SM031) and Appendix B to issue 11 of the Waka Kotahi NZ Transport Agency State highway maintenance contract proforma manual (SM032).

#20-12 Removal of references to 'Engineer to the Contract'

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Procurement team, Waka Kotahi NZ Transport Agency

This note outlines a minor change to the Waka Kotahi NZ Transport Agency manual SM030 Professional Services Contract Proforma Manual, amendment 9 October 2019.   The change involves removal of references that are no longer relevant.   The change outlined in this note shall be implemented from the date of publication.