Resources

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Unsealed pavements: supply and place maintenance aggregate

Published:
Category: Unsealed pavements , Maintenance , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

This specification sets out the requirements for the supply, cartage and laying of maintenance aggregate for unsealed roads, including preparation of the surface prior to laying.

Unsealed pavements: repair of potholes

Published:
Category: Unsealed pavements , Maintenance , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

This specification and guidance notes set out the requirements and maintenance standard for the repair of potholes in unsealed roads.

#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

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.

Unbound road base and sub-base aggregates evaluation

Published:
Category: Construction , Pavement & surfacing , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors

These notes provide guidance for the engineer to aid in their decision to reject or accept a material proposed for use a basecourse or sub-bases used on state highways and other roadways constructed in accordance with TNZ B/3 performance based specif…

Tunnel management

Published:
Category: Structures , Maintenance , Specifications | Audiences: Road controlling authorities, Road traffic engineers & consultants

This specification defines the key requirements of the main roles and responsibilities for the delivery of safe, effective tunnel management on the state highway network.

#19-07 Bridge manual – mechanical reinforcement couplers and anchors – interim advice (July 2019)

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

This technical advice note outlines interim requirements for the use of mechanical reinforcement couplers and anchors, subsequent to the publication of the Bridge manual 3rd edition amendment 3.

Treatment at bends using chevrons

Published:
Category: Crash analysis , Research & reports | Audience: Road traffic engineers & consultants

A crash analysis of chevron treatments, sometimes together with other treatments, at bends.

Traversable and mountable grates for precast concrete headwalls

Published:
Category: Structures (bridges, culverts & geotechnical) , Technical memoranda | Audiences: Road traffic engineers & consultants, Roading contractors

This memo provides details of grates that are acceptable in principle for use with precast concrete headwalls on state highways to protect the headwalls and vehicle occupants from the effects of vehicle impact.

Signs and markings to designate paths for pedestrians and cyclists

Published:
Category: Walking & cycling , Guidance for specialists | Audiences: Road controlling authorities, Road traffic engineers & consultants, Roading contractors

Road controlling authorities are required to use signs and/or markings to designate a shared path for use by pedestrians and cyclists.

#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.