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Road safety barrier systems

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

This specification covers the requirements for road safety barrier systems used on state highways. This 2009 specification is currently under review. For further information, please contact julian.chisnall@nzta.govt.nz

For further information refer to Technical Advice - road safety hardware

Notes

  1. List of interim acceptance notices as at 31 March 2017 (for accepted hardware systems not currently listed in M23)

  2. Interim Appendix Bridge barrier systems added (amended September 2016)

  3. Notification letters regarding system testing requirements and specification added

  4. Workshop registration and flyer information is now available in the road safety barrier training section below.

  5. Interim Appendix C: Temporary barrier systems added (amended April 2017)

Publication details

  • Author:
  • Published: October 2009
  • Version: Updated February 2017
  • Also known as: NZTA M23

Road safety barrier systems

Specifications and notes

TitleDate addedDownload
M23 Road safety barrier systems - specifications Oct 2009 PDF symbol (3 pages | 40KB)
M23 Road safety barrier systems - notes Oct 2009 PDF symbol (8 pages | 70KB)
M23 Appendix A: Approved road safety barrier systems Mar 2012 PDF symbol (11 pages | 340KB)
M23 Appendix B: Bridge barrier systems (interim) Sep 2016 PDF symbol (11 pages | 1.2MB)
M23 Appendix C: Temporary barrier systems (interim) April 2017 PDF symbol (41 pages | 2.4MB)

Interim acceptances for road safety hardware - updated 31 March 2017

The following road safety hardware products have been granted interim acceptance pending inclusion in the NZ Transport Agency Specification M23 Road Safety Hardware Systems (currently under review) The indicated links are to the relevant interim acceptance notice or notification letter.

Download product noticeSupplierTypeExpiry date
Ezy Guard 4 W-Beam Barrier System Ingal Civil (NZ) Safety Barrier - Permanent June 2020
SoftStop™ End Terminal System Ingal Civil (NZ) Safety Barrier – Permanent June 2020

BarrierGuard 800 Gate™ Steel Median Gate System

Ingal Civil (NZ) Safety Barrier – Permanent
(site specific approval req’d)
June 2020
ArmorGuard Gate Steel Median Gate System CSP Pacific Safety Barrier – Permanent
(site specific approval req’d)
June 2020
Ironman Median Gate™ Steel Median Gate System Road Safety and Rentals Ltd
(for Saferoads PTY)
Safety Barrier – Permanent
(site specific approval req’d)
June 2020
SKT SP and FLEAT SP End Terminal Systems Troy Wheeler Contracting Ltd Safety Barrier – Permanent June 2020
Safence 4 Cable TL4 WRSB
Note: This configuration supersedes that shown in M23
Ingal Civil (NZ) Safety Barrier – Permanent June 2017
SCI-100GM Smart Cushion Tauren Barriers Ltd Safety Barrier – Permanent or Temporary June 2017
Brifen 4 Cable WRSB (TL4-4R) CSP Pacific Safety Barrier – Permanent
(site specific approval may be req’d)
June 2017
VGAN 300 Aluminium Bridge Barrier CSP Pacific Safety Barrier – Permanent June 2017
Safence Slope Barrier Ingal Civil (NZ) Safety Barrier – Permanent
(site specific approval req’d)
June 2017
Ezy Guard W-Beam Barrier System (Smart & HD variants) Ingal Civil (NZ) Safety Barrier - Permanent June 2017
Armorwire WRSB Bolt-down post CSP Pacific Safety Barrier – Permanent
(site specific approval req’d)
n/a
Nu-Guard 31™ Curved and Trailing End Terminals CSP Pacific Safety Barrier - Permanent n/a
Nu-Guard 31™ Leading Transition to Rigid Barrier CSP Pacific Safety Barrier - Permanent n/a
X-350 End Terminal System (all variants) CSP Pacific Safety Barrier - Permanent June 2017
X-TENuator™ Crash Cushion CSP Pacific Safety Barrier - Permanent June 2017
ET-2000 PLUS End Terminal System Ingal Civil (NZ) Safety Barrier - Permanent June 2017
Gaillard-Rondino Timber Faced Guardrail (G2m/G4m)
(TL2 only, Not for use on State highways)
Commodore Trading Safety Barrier – Permanent
(interim assessment)
June 2025
Gaillard-Rondino Timber Faced Guardrail (GRP) [PDF, 98 KB]
(TL2 only, Not for use on State highways)
Commodore Trading Safety Barrier – Permanent
(interim assessment)
June 2025

The following road safety hardware products have been granted interim acceptance pending inclusion in the appropriate NZ Transport Agency specification or guidance documentation (as appropriate).

ProductSupplierTypeExpiry Date
Necklen 80, 100 & 170 series Superhighway Sign Support Systems Necklen Engineering Traffic Sign Supports
(Specification P24)
n/a
Kiwisafer™ Culvert End Treatment Saferoads International Drainage n/a
Spigoted Streetlight Column Outreach Steelgal Road Lighting
(Specification M26)
n/a

For further information on any of the above products, please contact the National Traffic & Safety Manager.

Notifications

TitleDateDownload
Temporary Concrete Barrier System Acceptance (2) 5 Mar 2015 PDF symbol (2 pages | 61KB)
Temporary Concrete Barrier System Acceptance 20 Feb 2015 PDF symbol (2 pages | 61KB)
Temporary barrier connections – Notice of inappropriate practices 11 Feb 2014 PDF symbol (3 pages | 650KB)
Colour of wire rope safety barrier posts 18 Jul 2013 PDF symbol (1 pages | 60KB)
MASH-1 - Discontinuation of 3-cable wire rope barrier systems 31 Oct 2012 PDF symbol (1 pages | 60KB)
MASH-1 - Implementation 15 Oct 2012 PDF symbol (1 pages | 60KB)
MASH-1 - Notification of adoption 18 Sep 2012 PDF symbol (1 pages | 60KB)
M23 terminal grading plan Aug 2011 PDF symbol (1 page | 430KB)

Road safety barrier training

TitleDateDownload
Road safety barrier systems installation and maintenance inspections workshops 2014 flyer May-Nov 2014 PDF symbol (2 pages | 100KB)
Temporary road safety barrier systems workshop 2014 flyer 15-16 Apr 2014 PDF symbol (2 pages | 170KB)
Road safety barrier systems course results Note this list will be updated periodically 21 Apr 2016 PDF symbol (4 pages | 40KB)

For more information on the above courses, please contact Stuart Fraser.

 

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