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

  • Advances in aggregate production machines
    October 27, 2016
    Aggregate production equipment continues to become more efficient and more productive as development continues – Mike Woof writes During 2016 all the major aggregate production equipment specialists have put a good deal of new machines on the market, highlighting their investment in research and development. These firms are also investing in developing their facilities, with new manufacturing capability coming on stream. Materials washing specialist CDE Global is now offering its modular M-Series wash
    Read More
  • Tertu’s T40 guardrail passes Chinese certification
    April 19, 2018
    Tertu reports that its T40 guardrail is the first European steel-backed timber safety barrier to be certified to Chinese standard JTG B05-01 -2013 (level A) The T40 barrier recently passed a crash-test programme at the Beijing Shenhuada laboratory. This certification is an essential step for the development of the company’s business in China, according to the French manufacturer, which will be at Intertraffic in Amsterdam this month. The barrier system consists of two half-logs 22cm in diameter and ei
    Read More
  • Davidson launches the Spinner
    February 6, 2012
    DAVIDSON Traffic Control Products is "rounding out" its offering of channeliser posts with the introduction of the Spinner, a screw-in base for its new DP 200 channeliser post.
    Read More
  • Reflective road markings improve visibility, safety
    February 13, 2012
    Retroreflectivity plays a vital role when it comes to helping drivers follow road markings clearly in the dark as Patrick Smith reports. In many instances road markings are as important as road signs, offering information about the roads being travelled and the actions drivers should or should not be taking. Toady there is a wide variety of materials available for such markings and these include paints, cold applied plastics, thermoplastic, self-adhesive tapes, modified epoxy resins and raised pavement mark
    Read More

Highlighted Content