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Pipe handrails and fences

Published: | Category: Technical memoranda , Road safety hardware and practice | 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.

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

Published: | Category: Technical memoranda , Road safety hardware and practice | 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.

Frequently asked questions: Barriers and terminals

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

To provide a list of frequently asked questions with answers in regard to road safety barrier systems, terminals and crash cushions. This technical memorandum will be updated periodically as questions are asked and answered.

Wire rope safety barrier (WRSB) transitions

Published: | Category: Technical memoranda , Road safety hardware and practice | 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.

TL-4 transition detail

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

This standard drawing shows details of the accepted W-beam to rigid barrier transition for use on state highways.

Bridge W-beam guardrail status

Published: | Category: Technical memoranda , Road safety hardware and practice | 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.

Road safety hardware system testing

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

To advise of the compliance testing requirements for road safety hardware systems.

Curved terminal

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

This standard drawing shows details of the accepted curved terminal end terminal treatment as described in Technical memorandum TM2008.

Installation of slip base sign fixings

Published: | Category: Technical memoranda , Road safety hardware and practice | 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).

Nesting of semi-rigid guardrail

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

To advise on the recommended practice for the nesting of non-proprietary semi-rigid barrier systems (W-Beam and Thrie-Beam). Refer to manufacturer for nesting details for proprietary semi-rigid guardrail systems.
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