Safety Roller Barrier
Ideal for roadside or median applications, our Safety Roller Barrier (SRB) MASH TL-4 longitudinal barrier is designed to minimize damage on impact by safely converting crash energy into rotational energy. SRB’s highly resilient design allows it to sustain minor impacts and smoothly redirect vehicles with less damage to the vehicle and safety roller barrier system.
Our highway road safety barriers are strong, long-lasting, and easy to install. And when you partner with Gregory Highway—the national leader in highway guardrails and roadside safety—you will always get a quick turnaround and responsive service.
Safety Roller Barrier System Advantages
- Improve roadside visibility – SRB rollers are striped with high-intensity reflective sheeting that increases driver awareness and reduces accidents. Optional LED guide lamps can be added for even more exceptional visibility.
- Safely redirects vehicles – Shock absorbing rollers convert impact energy into rotational energy, creating a smooth redirection. Occupant impact test results show SRB is the safest in its class.
- Soften vehicle impacts – With 100% recyclable components, SRB is made of steel and flame-retardant, eco-friendly ethylene vinyl acetate (EVA) plastic, which softens vehicle impacts and reduces vehicle damage.
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Occupant Impact Velocity Limits |
Occupant Ride Down Acceleration Limits |
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|
MASH Test |
Longitudinal |
Lateral (optional) |
x-Direction |
y-Direction |
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|
Test |
(kg) |
ft/s |
(m/s) |
ft/s |
(m/s) |
G’s |
G’s |
|
4-10 |
1,100 C |
0.66 |
(0.20) |
29.20 |
(8.90) |
0.6 |
7 |
|
4-11 |
2,270 P |
0.33 |
(0.10) |
19.40 |
(5.90) |
1.1 |
9.7 |
|
4-12 |
10,000 S |
1.64 |
(0.50) |
9.20 |
(2.80) |
0.6 |
4.3 |
|
MASH Preferred Limits |
ft/s (m/s) |
MASH Preferred Limits |
G’s |
||||
|
30 (9.10) |
15 |
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|
MASH Max Limits |
40 (12.20) |
MASH Max Limits |
20.49 |
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