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#20-03 Changes to the physical works prequalification pack

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

This notice advises that the latest changes to the Prequalification for physical works information pack are available to assist suppliers and project managers to more easily apply the prequalification protocols. This will enable a more consistent and expedited procurement process.

#20-02 Pilot specification for in-situ subgrade stabilisation

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

This note is to advise that the NZ Transport Agency (NZTA) Specification B/9P:2020, In-situ subgrade stabilisation, has been released for use on agreed pilot projects and is available for download from the Transport Agency’s website.

#17-20 Updated Risk management practice guide (minimum standard Z/44)

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

This practice guide (which also serves as a minimum standard for outsourced contracts) has been developed to promote a consistent and uniform approach to risk management services, the NZ Transport Agency and our contracts. It has been revised by the Risk and Assurance team in consultation with the Enterprise PMO to reflect the current Transport Agency approach to risk.

#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 Agency’s website for download.

#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 This technical advice is superseded by #19-09 Update to NZTA M1-A specification for performance-graded asphalt binder.

#19-05 Treatment of flush and bleeding road surfaces

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

This notice provides the guidance to assist maintenance contract managers to more easily respond to proposed works aimed at remedial works for areas of binder rise.   The guidance has been released, will come into effect from 1 April 2019 and should be applied to all resealing works in the Maintenance Renewals Programme.

#17-08 Modification to sealing using melter aggregate chip seals

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

This technical advice note outlines modifications to sealing practice when using melter aggregate. This technical advice is superseded by #19-08 Release of the new M6 specification for sealing chip.  

 

#17-19 M7 - 2017 pilot specification for approved roadmarking products

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

The M7 specification sets out the requirements materials must meet to be included on the list of approved roadmarking products for use on state highways. This is based on the material conforming to a set of laboratory tests and meeting performance requirements assessed by an on road trial.  

#17-03 Use of traffic speed deflectometer results

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

This technical advice note details the methodology to convert the traffic speed deflectometer (TSD) data to the more familiar falling weight deflectometer (FWD) output, enabling any TSD data collected to be directly compared to any historically collected FWD dataset.

#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

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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