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#20-10 Use of hollow bar ground anchors and soil nails

Published:
Category: Technical advice note | Audience: Road traffic engineers & consultants

This note is to advise that there is an issue with the use of hollow bar anchors and soil nails as an anchorage method and, as a result, this methodology must not be used unless its suitability for anchoring structural works as designed is demonstrab…

Geosynthetic soil reinforcement product approvals

Published:
Category: Materials , Specifications | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors

Geosynthetic soil reinforcement materials employed in the reinforcement of soil structures (embankments, slopes, reinforced soil walls, etc) are materials with widely varying properties.

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

Published:
Category: Technical advice note | Audience: Road traffic engineers & consultants

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 …

#20-01 Procedures for design and indirect tensile strength testing of modified and bound pavement materials

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

This note is to advise that NZ Transport Agency (NZTA) Specification T19:2020, Procedures for design and indirect tensile strength testing of modified and bound pavement materials, has been released for general use and is available on the Transport A…

Central motorway improvement – urban design framework

Published:
Category: Urban design , Planning, design, funding, building, maintenance of the transport network , Guidance for specialists | Audience: Road traffic engineers & consultants

The Urban Design Framework for the central motorway improvements emerged from the need to use a coordinated and integrated urban design process for the project.