Gregory Industries rolls out Safety Roller Barrier in North America

Gregory Industries, based in the US state of Ohio, is now the exclusive North American distributor for the Safety Roller Barrier system. Gregory has opted to market the innovative South Korean roller barrier technology in North America, offering a novel solution for road safety. The SRB is a MASH TL-4 longitudinal barrier that works by absorbing and converting shock energy into rotational energy. Prime locations for installations are areas where vehicles are exposed to frequent accidents. SRB is highly visi
June 19, 2017 Read time: 2 mins
Rolling along: vehicle directional energy is transferred in rotational energy
Gregory Industries, based in the US state of Ohio, is now the exclusive North American distributor for the Safety Roller Barrier system


7823 Gregory has opted to market the innovative South Korean roller barrier technology in North America, offering a novel solution for road safety. The SRB is a MASH TL-4 longitudinal barrier that works by absorbing and converting shock energy into rotational energy. Prime locations for installations are areas where vehicles are exposed to frequent accidents.

SRB is highly visible with a noticeable colour and self-luminescence which alerts drivers – especially at night - to the danger of that particular curve or stretch of road. The system can be used as a median barrier or roadside barrier.

The SRB, manufactured by the South Korean company Evolution in Traffic Innovation, consists of rotating barrels made of ethylene-vinyl acetate that are aligned within a continuous metal frame. Ethylene-vinyl acetate has better shock absorption characteristics than rubber or urethane.

Upon impact by a vehicle, the barrels rotate to convert shock energy from the vehicle into rotational energy. This propels the vehicle forward back onto the road instead of crashing through the barrier or becoming entangled in a destroyed barrier system.

Importantly, with upper and lower frame sections, the guardrail can handles impacts from large and small vehicles.


Gregory launched the SRB into the North American market at the 2017 ATSSA Traffic Expo in Phoenix, Arizona, in February. The company said that it is working with several states to develop pilot projects and complete installations.

Gregory Industries is the exclusive North American distributor also for the Guardian 5 (G5) – MASH TL-5 longitudinal barrier system.

The strong and flexible MASH TL-5 longitudinal barrier is designed to safely capture and redirect a fully loaded 36,290kg vehicle. The company said that the G5 is a cost-effective and safer alternative to concrete barriers and is intended for use in areas of high congestion and median cross-over accidents.

Road Markings, Barriers & Workzone Protection

For more information on companies in this article

Related Content

  • High-tech, high places: 3M in US and MetService in New Zealand
    August 1, 2017
    The US state of Michigan sets up a high-tech test road while New Zealand’s transport officials buy in some high-tech weather forecasting. The road safety division of 3M will provide the US state of Michigan with lane markings and retroreflective signs for a connected vehicle technologies trial along the I-75 highway. Around 5km of the Interstate 75 work zone in Oakland County will be transformed over the next four months to improve safety for drivers and test advanced vehicle-to-infrastructure technologie
    Read More
  • Excavator remains the key earthmoving tool
    February 17, 2012
    The excavator remains the key earthmoving tool, Mike Woof reports. The versatile hydraulic excavator has been at the heart of most earthmoving projects around the world for many years, a dominance that looks set to remain. Because of the importance to the construction sector of the excavator, manufacturers are keen to upgrade and improve their competing machines on an almost continuous basis. New technology proliferates in hydraulic excavators while firms are also focussing on increasing the range of tasks
    Read More
  • Vögele introduces improved medium-sized paver
    January 6, 2015
    Vögele is offering high performance paving with its new machine - Mike Woof writes Vögele is introducing a new medium class tracked paver, the SUPER 1600-3i and its rubber tyred sibling, the SUPER 1603-3i. The company is also offering an update to its SprayJet package for paving thin overlays. Both the SUPER 1600-3i and SUPER 1603-3i share the benefits of the firm’s Dash 3 features, with the tracked machine able to handle paving widths up to 7.5m and the rubber tyred version offer a maximum width of 7m.
    Read More
  • Asphalt plants looking at greener production systems
    April 10, 2012
    A wide variety of new equipment and technology to assist production at asphalt plants is about to be launched onto the market, while asphalt producers are continuing to look at greener working practices. Guy Woodford reports. Lintec, in partnership with Loesche, recently created what they say is the world’s first containerised Coal Mill Plant for independent coal dust supply at the jobsite which offers mobility and high economic efficiency through the substitution of gas or oil with coal.
    Read More

Highlighted Content