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Crash cushions for DB80 concrete jersey barriers

Types of crash cushions

There are a series of different crash cushions and end treatments that are suitable for use with the Deltabloc DB80 concrete jersey barrier.

The Deltabloc DB80 is a TL-3 rated crash barrier, meaning in most circumstances, its accompanying crash cushion should be rated to the same level. The most common crash cushions are the TAU-II and the Absorb 350 as well as the Quadguard, SLED and Smart Cushion. These cushions all complement the DB80 concrete jersey barrier.

Absorb 350

Absorb 350

The Absorb 350 is a water-filled crash cushion that is approved to the NCHRP testing levels 1 and 2. This barrier is ideal for speed zones of 70km/hr and under. It is a non-redirective, gating crash cushion.

Tau 2

TAU II

The Universal TAU-II Crash Cushion is a redirective, non-gating impact attenuator. It is designed to meet the requirements of NCHRP350 test levels TL-1, TL-2 and TL-3. It uses a series of crushable cartridges to absorb energy on impact. It is constructed from a steel skeleton surrounding collapsible HDPE bays. It is typically used in speed zones in excess of 80Km/hr.

Temp Fence Install

Quadguard CZ

The Quadguard is a redirective, non-gating crash cushion approved to NCHRP 350 TL-2 and TL-3. Similar to the TAU-II, it consists of a nose panel and crushable, energy absorbing cartridges surrounded by a framework of steel panels.

SLED end terminal

SLED End Terminal

This crash cushion is a narrow, water-filled non-redirective gating crash cushion that is a MASH Tested to TL-3 when used in a 4 module configuration. SLED stands for Sentry Longitudinal Energy Dissipater. It is constructed from yellow polyethylene with internal steel cables, and is designed to deform and rupture on impact.

smart cushion

Smart Crash Cushion Attenuator

The Smart Cushion is a fully re-directive, non-gating impact attenuator. Certain models are MASH and NCHRP 350 tested to TL-3. It differs from other crash cushions in that its collapsing motion is dependent on the vehicle’s speed. It is a steel attenuator that collapses with the help of cables and rollers that slide along a track.

DB80 End treatments and transitions

The Deltabloc range includes a sloped concrete end segment or taper that can be used if your specifications and engineering advice require the installation of an end treatment.

Additionally, specific components are required to ensure your run of Deltabloc barriers is effectively fixed to the crash cushions listed above. Each type requires a specific transition piece as laid out by Austroads guidelines, in order to ensure that it performs as expected.

Advice on the best crash cushions for your jersey barriers

For advice and assistance on the right crash cushions, end terminals, tapers and other accessories for Deltabloc jersey barriers, get in touch with our barrier expert Ben Lorne today for more information.

Ben Lorne, Barrier Solutions Manager   |   ben.lorne@jaybro.com.au

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