Saferoads HV2 Safety Barrier Manuel utilisateur
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Contents
Preface .............................................................................................................................................................................. 2
Introduction ...................................................................................................................................................................... 2
Applications ....................................................................................................................................................................... 2
Limitations......................................................................................................................................................................... 3
Testing ............................................................................................................................................................................... 3
Barrier Segments ............................................................................................................................................................... 3
Minimum Deployment ...................................................................................................................................................... 6
End Treatment .................................................................................................................................................................. 6
Length of Need .................................................................................................................................................................. 6
Quadguard Crash Cushions ........................................................................................................................................... 6
SLED End Terminals ....................................................................................................................................................... 6
Deployment Options ......................................................................................................................................................... 7
System Deflection ............................................................................................................................................................. 8
Site Considerations ........................................................................................................................................................... 8
Barrier Deployment .......................................................................................................................................................... 8
Working Width .................................................................................................................................................................. 9
QuadGuard Crash Cushion Deployment ......................................................................................................................... 10
SLED Crash Cushion Deployment .................................................................................................................................... 11
Maintenance and Repair ................................................................................................................................................. 12
Safe Work Method Statement ........................................................................................................................................ 13
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Preface
For optimum performance, Saferoads HV2 Safety Barrier must be designed, installed and maintained as per this
manual. Please thoroughly review and understand this manual before using HV2 Safety Barrier.
Local requirements may also impose restrictions. Please refer to local governing body for further information.
If more information is required please contact Saferoads:
Websites: www.saferoads.com.au or www.hv2barrier.com
Australia: 1800 060 672
International: +61 3 5945 6600
Email: [email protected]om.au
Introduction
Saferoads HV2 Safety Barrier is a free standing temporary longitudinal barrier system successfully crash tested to
MASH TL-4.
The patented hybrid technology, and unique connectors, allow Saferoads HV2 Safety Barrier to offer high containment
and low deflection, while remaining economical to transport and deploy, with no time-consuming anchoring required.
Saferoads HV2 Safety Barrier provides several unique advantages over other temporary barrier systems including:
High containment
Low deflection
Safe, consistent and reliable redirection
Fast deployment and retrieval
No anchoring required
No loose parts
Economical to transport
Maintenance free
Durable
Applications
Saferoads HV2 Safety Barrier is tested to provide positive protection of work sites by safely redirecting errant vehicles
up to 10,000kg (22,000lbs) at 15° and 90km/h (56mph), or 2,270kg (5,000lbs) at 25° and 100km/h (62mph). This allows
HV2 Safety Barrier to be suitable for use on any roadside work zone from highways to low speed local streets. When
using HV2 Barrier with SLED end treatments, in Australia the design speed is reduced to 80km/h.
Since the HV2 Safety Barrier is free standing, it can be used on any firm surface including concrete, asphalt, spray seal,
unsealed compound pavements, and uniform natural surfaces.
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Limitations
Saferoads HV2 Safety Barrier has been tested to MASH TL-4 requirements, as required by FHWA and AS3845.1.
Installations not in accordance with this manual or impacts outside of MASH TL-4 testing may result in unpredictable
performance.
Testing
Saferoads HV2 Safety Barrier has successfully passed a variety of tests to ensure compliance with MASH requirements,
including:
MASH 4-10 (1,100C) – Test No. 690902-SFR7
MASH 4-11 (2,270P) – Test No. 690902-SFR6
MASH 4-12 (10,000S) – Test No. 690902-SFR8
MASH 3-21 (2,270P) – Test No. 132266.01 Reverse Transition with Pinned Crash Cushion
MASH 3-11 (2,270P) – Test No. 132266.3-11 BLON with SLED
MASH 3-44M (2,270P) – Test No. 132266.3-44 CIP with SLED
Barrier Segments
A HV2 Safety Barrier installation is constructed from a series of individual barrier segments. Each segment is
constructed from steel with concrete ballast. The dimensions of each segment are:
Installed length
5,800mm (19ft)
Segment
length
5,846mm (19ft 2in)
Segment
width
450mm (18in)
Segment
height
900mm (35in)
Weight
2,088kg (4600lbs)
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Barrier segments are fastened by an integrated, interlocking joiner, which simply slides together when barriers are
lowered into position.
These connectors are bidirectional, allowing barriers to be installed in either orientation.
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Barrier segments feature three integrated lifting points. Barriers can be safely lifted from the centre lifting point, or
the outer two lifting points.
Barrier segments can be stacked for storage or transport, but appropriate bearers should be used between layers.
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Minimum Deployment
HV2 Safety Barrier installations require a minimum deployment length of 98.6m (17no. HV2 Barriers) plus the required
end treatments, to safely contain and redirect at MASH TL3.
For MASH TL-4 the minimum Deployment is 278m (48no. HV2 Barriers) plus the required end treatments.
End Treatment
HV2 Safety Barrier installations require appropriate end treatments to ensure occupant safety in the event of an
impact to the end of the system.
The QuadGuard Crash Cushion has been successfully tested with the HV2 Safety Barrier using a HV2 transition. This
configuration requires anchoring of the end terminal and transition to the ground. Refer to page 10 for deployment
details.
The SLED Water Filled Crash Cushion with Transition Kit has been successfully tested with the HV2 Safety Barrier. This
configuration does not require any anchoring to the ground and is completely freestanding. Refer to page 11 for
deployment details.
Length of Need
Quadguard Crash Cushions
When using QuadGuard Crash Cushions to protect the ends of the system, the length of need begins and ends at the
first fender panel of the QuadGuard next to the Yellow Nose for MASH TL-3 Deployments. Refer to the QuadGuard
product manual for further information.
For MASH TL-4 Deployments the length of need begins and ends 138m in from the join between the HV2 Barrier and
Quadguard.
SLED End Terminals
When using SLED crash cushions to protect the ends of the system, the length of need begins and ends midway along
the 3rd HV2 Safety Barrier segment, 22.5m (73.8ft) from the beginning or end of the system for MASH TL-3 Deployment.
Note a SLED to HV2 Transition Kit is required, see pages 11 and 12 for detail.
For MASH TL-4 Deployments the length of need begins and ends 138m in from the join between the HV2 Barrier and
the SLED End Terminal.
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Deployment Options
100km/h when using Quadguard Crash Cushions, limited to 80km/h when using SLED end Treatments.
SLED QUADGUARD
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System Deflection
A sufficient clear zone must be allocated between the HV2 Safety Barrier and the work zone to allow for deflection of
the barrier during an impact. The tested deflections are shown in the below table.
Test Level Vehicle Speed Angle Deflection
TL3 2,270kg (5,000lbs)
100km/h (62mph)
25° 1.47m (4ft 10in)
TL4 10,000kg
(22,000lbs) 90km/h (56mph)
15° 2.37m (7ft 10in)
Site Considerations
While Saferoads HV2 Safety Barrier can be installed on most worksites, some obstacles must be avoided. HV2 Safety
Barrier should not be installed if there is:
Curvature tighter than 80m radius
Cross slope steeper than 5%
Longitudinal slope steeper than 5%
Crest sharper than 5%
Ditch sharper than 5%
Kerbs or similar obstacles restricting deflection
For more information please contact Saferoads or the relevant road authority.
Barrier Deployment
Before beginning deployment, ensure there is adequate traffic management, and whenever possible personnel should
remain on the non-traffic side of the installation. Also ensure appropriate lifting equipment is used and operated by
competent personnel.
1. Beginning at the upstream end of the installation, unload the first barrier segment and place in the correct
position. Orientation is not important as segments are bidirectional.
2. Working downstream of the first barrier segment, unload the second barrier segment and align the connectors
while lowering the segment into position. The connection is made in the top 200mm of the barriers. Remain
cautious of potential pinch and crush points when lowering and connecting barriers.
3. Repeat until all barrier segments are placed into the correct position and joined to adjacent barrier segments.
4. For installing an end terminal refer to the relevant deployment section below.
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Working Width
The Working Width is the distance between the traffic face of the barrier before impact and the maximum lateral
position of any major part of the barrier or vehicle after impact.
MASH TL-3 – 2,270kg Pickup
The TL-3 Working Width is a constant 1.81m as the vehicle does not roll over the top of the barrier.
MASH TL-4 – 10,000kg Truck
The below image shows the working width of the TL-4 Truck at 1m intervals above the ground. The working width
varies depending on the height of the work-zone that requires protection.
Autres manuels pour HV2 Safety Barrier
1
Table des matières
Autres manuels Saferoads Système de contrôle
