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This specification and guidance notes apply only to audio tactile profiled (ATP) roadmarkings. These roadmarkings include rumble strips and provide all three of audio and tactile (vibratory) and visual information to road users. ATP roadmarkings used on the state highway must be on the current list of type approved markings. ATP markings that have current approval in terms of M/24 for use on state highways are listed in M/24 notes.

This specification and guidance notes apply to the reflectorised and non-reflectorised marking of sealed and paved road surfaces in paint, thermoplastic and other types of roadmarking materials. Thermoplastic application is limited to machine screeding, machine spray and machine extrusion. Paint shall be applied by machine spray methods only. Not recommended for use on state highways - please use P/22 Specification for reflectorised pavement marking.

Q/3 Normal QA level contract specification covers the quality assurance requirements for contracts which have been assessed at the normal quality assurance level. Q/4 High QA level contract covers the quality assurance requirements for contracts which have been assessed at the high quality assurance level. Both specifications should be applied to all contracts on state highways which involve road construction, road maintenance, and structures. The guideline notes covers the roles of the client, consultant and contractor in the application of quality assurance provisions in roading contracts.

This specification sets out the requirements and standards for the control of roadside vegetation on state highways.

The application of geosynthetics (ie geogrids) for the stabilisation of basecourses prepared with a River Run rounded gravel aggregate was investigated. Reductions in the rate of rut formation by over 50% were observed when geogrids were included either at the basecourse/sub-base interface or at half-height of the basecourse. The rate of rut formation was reduced further if a square type geogrid was used in place of a triaxial type geogrid. It was found that the basecourse rutted rapidly if the surface was not confined, due to the lack of particle interlock and surface confining stress. If the surface was confined with a thin (ie < 40mm) asphalt layer to bind together the particles in the surface, then the aggregate provided significant support and reduced rutting by over 90%, even without the addition of geosynthetic stabilisation.

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

Bylaw 2012-9 - NZ Transport Agency (speed limits on state highways) amendment bylaw March 2013.

Bylaw 2013-2 - NZ Transport Agency (speed limits on state highways) amendment bylaw May 2013.

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.