Resources

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.

To advise on the recommended practice for using low strength concrete around guardrail posts that are installed in hard surfaces such as concrete footpaths.

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

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

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.

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).

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

This technical memorandum details advises on the status of bridge W-beam guardrail, its phase-out and accepted (restricted) future use.