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Lapping of semi-rigid guardrail

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road traffic engineers & consultants

To advise on the recommended practice for the lapping of semi-rigid barrier systems (W-beam and thrie-beam).

Wire rope safety barrier (WRSB) transitions

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road traffic engineers & consultants

This technical memorandum provides advice on the recommended practice for the design and installation of transitions between wire rope safety barriers (WRSB) and semi-rigid and rigid barrier systems. The barrier configurations in the memo are generic. For specific details for proprietary barrier systems, contact the system supplier.

Guidelines for edge protection and medians on dual carriageway roads, incorporating a Safe System philosophy

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road traffic engineers & consultants

The launches of the Safer Journey’s initiative and the Decade of Action for Road Safety have brought the way we design for safety into focus. The purpose of this document is to define the Safe System philosophy for dual carriageway roads and how this may vary with context. In particular these guidelines are intended for use on all the roads of national significance (RoNS) projects.

Buried in backslope end treatment

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road traffic engineers & consultants

To advise on the recommended practice for the design and installation of a buried in backslope end treatment.

Bridge W-beam guardrail status

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road controlling authorities

This technical memorandum details advises on the status of bridge W-beam guardrail, its phase-out and accepted (restricted) future use. From July 2013, bridge W-beam guardrail is no longer to be used for new installations on state highway structures. Repair of existing installations is permitted where the level of damage does not warrant system replacement.

Pipe handrails and fences

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road controlling authorities

This technical memorandum provides advice on the recommended practice for the mitigation of hazards associated with tubular handrails commonly installed for pedestrian/cyclist protection adjacent to roadways and on structures. This includes older tubular rail barrier systems on bridges with or without an adjacent footpath.

Road safety barrier: ground beam

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road traffic engineers & consultants

To advise on the recommended practice for the design and installation of a ground beam for the support of semi-rigid road safety barrier systems. This design applies to public domain systems only. For equivalent details for proprietary barrier systems, contact the system supplier.

Selection of barrier containment (test) level and length of need calculation

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road traffic engineers & consultants

To advise of the preferred method of selecting road safety barrier containment (test) level, calculating the length of need (LON) appropriate to that test level and highlighting circumstances under which the LON may be reduced.

Road safety hardware system testing

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road controlling authorities

To advise of the compliance testing requirements for road safety hardware systems. Note that this technical memorandum relates to the testing of new road safety hardware that is developed and significant variants of existing road safety hardware systems.

Installation of slip base sign fixings

Published: | Category: Road safety hardware and practice , Technical memoranda | Audience: Road traffic engineers & consultants

To advise on the required practice for installation of slip base sign fixings to ensure safe operation and compliance with NZ Transport Agency P24 specification and RMSA Compliance standard for traffic signs (2008).
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