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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.

#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.

#16-03 Performance specification for asphalt binders M1-A

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

The M1 specification for bitumen is based around the measurement of penetration and basic viscosity. This technical advice is superseded by #19-09 Update to NZTA M1-A specification for performance-graded asphalt binder.

#19-10 Contractor health and safety expectations

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Safety, Health and Environment

This notice advises contractors and contract managers that the health and safety expectations for NZ Transport Agency works have changed.   The new expectations will come into effect from 1 October 2019 and should be applied to all contract works.

#19-16 Electrical issues identified in signal controllers

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Transport Services

This notice advises that the NZ Transport Agency has recently become aware of electrical issues in some of the traffic signals controllers, managed within one of our maintenance contracts.  

#15-10 Guide to the management of effects on noise sensitive land use near to the state highway network

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

Release of the Guide to the management of effects on noise sensitive land use near to the state highway network.

#15-15 Launch of State highway network outcomes contract management manual

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

Highways and Network Operations have launched the new State highway network outcomes contract management manual (SM034).

#19-11 Update to NZTA Guide to assessing air quality impacts from state highway projects

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Safe and Sustainable Transport team

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.

#19-12 Update to NZTA State highway construction and maintenance noise and vibration guide

Published: | Category: Technical advice note | Audiences: Road traffic engineers & consultants, Roading contractors | Author: Safe and Sustainable Transport team

The purpose of this note is to advise project and network managers that there has been an update to the State highway construction and maintenance noise and vibration guide.
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