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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

Search for TANs posted in 2020

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

#17-15 Investment decision making - assessment business case materials for NZ Transport Agency investment partners and staff

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

The assessment of business case materials will help guide conversations between NZ Transport Agency staff and investment partners so the right conversations can be had at the right stage of the process.

#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.

#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.

#16-05 State highway contractor health and safety

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

This technical advice note has been superseded by TAN #16-11.  

Changes have been made to our requirements for the health and safety of contractors working on the state highway.

#16-06 Health and safety at work act summary and new event management resource

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

The Transport Agency has commissioned legal opinion and developed a summary of the HSWA for the industry.

#19-03 Specification for design, construction and maintenance of cycling and shared path facilities

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: System Design and Delivery

This notice advises that the procedures for managing the design, construction and maintenance of cycling and shared path facilities have been revised.   The new standard applies from February 2019 and should be used by all staff carrying out physical works in the areas identified on the state highway network facilities map.

#19-14 SM030 Professional Services Contract Proforma Manual update Amendment 9

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: System Design & Delivery

This note confirms that amendment 9 of the NZ Transport Agency’s SM030 Professional Services Contract Proforma Manual published in October 2019 is available on the Transport Agency’s website for download. This amendment to the SM030 Manual shall be implemented immediately for future contracts.

#19-08 Release of the new M6 specification for sealing chip

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: System Design and Delivery

This notice advises that the new sealing chip specification is available to be used for all future chipsealing works.   The new specification will come into effect immediately and should be applied to all upcoming chipsealing works in the State Highway Programme.

#19-09 Update to NZTA M1-A specification for performance-graded asphalt binder

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: System Design and Delivery

This notice advises that the new performance-graded asphalt binder specification is available to be used for all future asphaltic concrete works.   The new specification will come into effect immediately and should be applied to all upcoming asphaltic concrete surfacing works in the state highway programme.

#16-01 Notice to industry: wire rope safety barrier systems – post footing issues

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

Over recent months, the NZ Transport Agency has been made aware of a number of issues associated with the failure under impact of wire rope safety barrier (WRSB) post footings. The issues are generic in nature and not specific to any system.
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