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#15-14 Concrete barriers used to temporarily detain rockfall and slope debris

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

This TAN clarifies issues related to the utilisation of concrete barriers to temporarily detain rockfall/slope debris.

#16-02 Transport Agency Greenroads implementation policy

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

The Transport Agency is using Greenroads® as a tool to assess the sustainability performance of high-value state highway improvement projects. Greenroads assessment and certification applies to the detailed design and construction stage of a project.

#16-17 Road safety barrier accreditation scheme

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

Road safety barrier accreditation scheme gets green light for safety.

#15-01 Launch of the Technical advice note

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

Highways and Network Operations have launched the new Technical advice note series.

#15-13 Geotechnical testing and investigations

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

The NZ Transport Agency is currently participating in the preparation of an industry ground investigation specification which may be adopted in the future for NZ Transport Agency projects.

#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

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

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.

#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

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.

#19-10 Contractor health and safety expectations

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

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.

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

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

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.
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